#1Bank OZK Nasdaq: OZK | November 9, 2023#2Forward Looking Statements nications by Bank This presentation and other OZK (the "Bank") include certain "forward-looking statements" regarding the Bank's plans, expectations, thoughts, beliefs, estimates, goals and outlook for the future that are intended to be covered by the Private Securities Litigation Reform Act of 1995. Forward- looking statements are based on management's expectations as well as certain assumptions and estimates made by, and information available to, management at the time. Those statements are not guarantees of future results or performance and are subject to certain known and unknown risks, uncertainties and other factors that may cause actual results to differ materially from those expressed in, or implied by, such forward-looking statements. These risks, uncertainties and other factors include, but are not limited to: potential delays or other problems in implementing the Bank's growth, expansion and acquisition strategies, including hiring or retaining qualified personnel, obtaining regulatory or other approvals, delays in acquiring satisfactory sites, obtaining permits and designing, constructing and opening new offices or relocating, selling or closing existing offices, or integrating any acquisitions; the availability of and access to capital; possible downgrades in the Bank's credit ratings or outlook which could increase the costs of or decrease the availability of funding from capital markets; the ability to attract new or retain existing deposits or to retain or grow loans, including growth from unfunded closed loans; the ability to generate future revenue growth or to control future growth in non-interest expense; interest rate fluctuations, including changes in the yield curve between short-term and long-term interest rates or changes in the relative relationships of various interest rate indices; competitive factors and pricing pressures, including their effect on the Bank's net interest margin or core spread; general economic, unemployment, credit market and real estate market conditions, and the effect of such conditions on the creditworthiness of borrowers, collateral values, the value of investment securities and asset recovery values; conditions within the banking industry, including the effects of recent failures of other financial institutions; recently enacted and potential laws and regulatory requirements or changes to existing laws and regulatory requirements, including changes affecting oversight of the financial services industry, changes intended to manage or mitigate climate and related environmental risks or changes in the interpretation and enforcement of such laws and requirements, and the costs and expenses to comply with new and/or existing legislation and regulatory requirements; uncertainty regarding changes in U.S. government monetary and fiscal policy; the impact of any U.S. federal government shutdown or budgetary crisis; FDIC special assessments or changes to regular assessments; the ability to keep pace with technological changes, including changes regarding artificial intelligence and maintaining cybersecurity; the impact of failure in, or breach of, our operational or security systems or infrastructure, or those of third parties with whom we do business or others, including as a result of cyber-attacks or an increase in the incidence or severity of fraud, illegal payments, security breaches or other illegal acts impacting the Bank, its customers or others; natural disasters; acts of war or terrorism; the potential impact of continuing inflationary pressures; the potential impact of supply chain disruptions; national or international political instability or military conflict, including the conflict in the Middle East and the ongoing war in Ukraine; the competition and costs of recruiting and retaining human talent; impairment of our goodwill; adoption of new accounting standards, or changes in existing standards; and adverse results (including costs, fines, reputational harm and/or other negative effects) from current or future litigation, regulatory examinations or other legal and/or regulatory actions or rulings as well as other factors identified in this communication or as detailed from time to time in our public filings, including those factors described in the disclosures under the headings "Forward-Looking Information" and "Item 1A. Risk Factors" in our most recent Annual Report on Form 10-K for the year ended December 31, 2022 and our quarterly reports on Form 10-Q. Should one or more of the foregoing risks materialize, or should underlying assumptions prove incorrect, actual results or outcomes may vary materially from those described in, or implied by, such forward-looking statements. The Bank disclaims any obligation to update or revise any forward-looking statements based on the occurrence of future events, the receipt of new information or otherwise. 2 <> Bank OZK#3- Bank OZK (Nasdaq: OZK) – At a Glance Bank OZK is a high-performing regional bank with deep expertise in specialized lending businesses nationwide. It operates through 229 retail branches in Arkansas, Georgia, Florida, North Carolina and Texas and 12 loan production offices. Recent Financial Highlights* Total Assets $32.8 billion ☐ Total Loans $25.3 billion ☐ Total Deposits $25.6 billion " Total Common Stockholders' Equity $4.56 billion CALIFORNIA 3 " 9M23 Net Interest Margin 5.29% ■ 9M23 Efficiency Ratio 33.1% 9M23 Net Charge-off Ratio* ** 0.15% 9M23 Return on Average Assets* ** 2.26% 9M23 Return on Average TCE*** 17.7% ☐ TCE / TA Ratio+ 12.2% 22 TEXAS 74 ARKANSAS 71 MISSISSIPPI GEORGIA NEW YORK NORTH CAROLINA 43 FLORIDA 26 * As of September 30, 2023 ** Annualized + The calculation of the Bank's tangible common stockholders' equity ("TCE") and the reconciliation to GAAP are included in the schedule at the end of this presentation. <> Bank OZK 3#4Third Quarter 2023 Key Highlights Record Quarterly Net Income Available to Common Stockholders & Diluted Earnings Per Common Share of $169.7 million and $1.49, increases of 32.3% and 38.0%, respectively, compared to the third quarter of 2022. ◇ Record Quarterly Pre-tax Pre-provision Net Revenue* ("PPNR") of $264.0 million. ◇ Record Quarterly Net Interest Income of $367.3 million. ◇ Record Loan Balances - Outstanding loans were $25.33 billion, increasing $1.72 billion, or 7.3% not annualized, during the quarter. ◇ Record Deposit Balances - Deposits were $25.55 billion, increasing $1.57 billion, or 6.5% not annualized, during the quarter. ◇ Liquidity - Available primary and secondary liquidity sources totaled $10.3 billion. ◇ Asset Quality - Our annualized net charge-off ratio for total loans was 0.15% and our quarter end ratios of nonperforming non-purchased loans to total non-purchased loans and nonperforming assets to total assets were 0.25% and 0.40%, respectively. ◇ Efficiency Ratio of 32.6%, among the best in the industry. Capital - Our common stockholders' equity ratio and tangible common stockholders' equity ratio** were 13.9% and 12.2%, respectively, at September 30, 2023. At September 30, 2023, our book value and tangible book value per common shares were $40.35 and $34.50, respectively, increases of 13.1% and 14.9% from September 30, 2022. ◇ Dividends - We recently increased our dividend on common stock for the 53rd consecutive quarter. * The calculation of the Bank's PPNR and the reconciliation to generally accepted accounting principles ("GAAP") are included in the schedule at the end of this presentation. ** The calculation of the Bank's tangible common stockholders' equity and tangible book value per share and the reconciliation to GAAP are included in the schedule at the end of this presentation. Bank OZK#5Expertise in Key Lending Verticals Contributes to Our Favorable Asset Quality We conduct extensive lending operations through our network of 229 branches and 12 loan production offices: Real Estate Specialties Group ("RESG") is a nationally recognized leader in commercial real estate construction and development finance. ➤ Our Community Bank originates loans through commercial (generalist) lenders and specialty lending teams. Indirect RV & Marine lending is a nationwide business originating consumer loans through an extensive dealer network. Other lending teams with a national focus include our Asset Based Lending Group ("ABLG") and our Corporate and Business Specialties Group ("CBSG"). 5 Bank OZK#6Strong Loan Portfolio Growth Combined with Excellent Yields and Favorable Asset Quality Loans Are Our Largest Category of Earning Assets Non-Purchased Loans* Total Loans* ($ millions) ($ millions) Our period-end balance of total loans at September 30, 2023 was a record $25.33 billion, having increased $5.82 billion, or 29.8%, from September 30, 2022 and $1.72 billion, or 7.3% not annualized, from June 30, 2023. During the first nine months of this year, our total loans grew $4.55 billion, or 21.9% not annualized, and we expect continued growth in total loans in the fourth quarter of 2023. * Period End Totals Purchased Loans* ($ millions) $30,000 12.00% $25,332 $23,607 $25,000 $22,062 10.00% $20,779 $18,305 $18,308 $18,931 $19,514 $18,743 $20,000 8.00% 8.44% 8.58% 8.06% $15,000 6.00% 7.38% 6.32% $10,000 $5,000 5.89% 5.45% 5.40% 5.60% 4.00% 2.00% 0.00% 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 Period-End Total Loans 1Q23 Total Loan Yield 2Q23 3Q23 $30,000 12.00% $25,051 $23,292 $25,000 $20,400 $21,701 10.00% $20,000 $17,707 $17,792 $18,450 $18,298 $19,104 8.00% $15,000 8.07% 8.47% 8.59% 6.00% 7.38% 6.32% $10,000 $5,000 5.83% 5.39% 5.37% 5.55% 4.00% 2.00% 0.00% 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 Period-End Non-purchased Loans 1Q23 Non-purchased Loan Yield 2Q23 3Q23 $1,000 15.00% $750 13.00% $598 $516 $481 11.00% $500 $445 $410 $379 8.04% $361 7.75% $316 9.00% 7.18% $281 7.23% $250 6.63% 7.97% 7.00% 7.13% $- 3Q21 4Q21 1Q22 3Q22 Period-End Purchased Loans 6.61% 2Q22 6.16% 5.00% 4Q22 1Q23 2Q23 3Q23 Purchased Loan Yield 60 <> Bank OZK Purchased Loan Yield Non-Purchased Loan Yield Total Loan Yield#7Expert Lending Teams Driving Diversified Growth Non-purchased Loans by Lending Group In the quarter just ended, Real Estate Specialties Group ("RESG") was the largest contributor to non-purchased loan growth. Community Banking, Indirect RV & Marine, Asset Based Lending Group ("ABLG") and Corporate and Business Specialties Group ("CBSG"), collectively, continued to contribute to our long-term growth and portfolio diversification. $30,000 $27,500 $25,000 3rd Quarter $1,368 $15 $174 $113 $90 $25,051 $22,500 $23,292 of 2023 ($ millions) $20,000 $17,500 $15,000 6/30/2023 Balance RESG Community Banking Indirect RV & Marine ABLG CBSG* 9/30/2023 Balance $30,000 9/30/2023 Balances $ millions % $27,500 RESG $ 15,769 63% $25,000 First Nine Community Banking 5,029 20% $501 $576 $168 $25,051 Indirect Lending 2,831 11% Months $22,500 $3,170 $237 ABLG 1,058 4% of 2023 $20,000 $20,400 CBSG 365 2% ($ millions) $17,500 Total $ 25,051 100% $15,000 12/31/2022 Balance RESG Community Indirect RV & Banking Marine ABLG CBSG* 9/30/2023 Balance * CBSG is a team focused on subscription finance, other secured non-real estate lending opportunities, and our small shared national credit portfolio. 7 Bank OZK#8<> Growth, Growth & Diversification Our "Growth, Growth & Diversification" strategy allows us to capitalize on the unique strengths and expertise of RESG, while continuing to ramp up growth in other lending teams contributing to long-term portfolio diversification. Growth in RESG - We want to continue to grow our RESG portfolio. Growth in Other Portfolios - We also want to continue to achieve greater portfolio diversification through growth in our Community Banking, Indirect RV & Marine, CBSG and ABLG We want to continue to enhance long-term loan portfolio diversification while not limiting RESG's excellent loan growth potential. Even as our outstanding balance of RESG loans has continued to reach record levels in recent quarters, RESG's percentage of our total non- purchased loans has declined from a peak of 70% at year-end 2016 to 63% as of September 30, 2023. December 31, 2016 2% 1% 1% 26% 70% September 30, 2023 11% 4% 2% 20% 63% RESG Community Banking ■Leasing Indirect RV & Marine CBSG / CLSG ABLG $30,000 portfolios. We have good momentum $25,000 with each of those teams. $20,000 Diversification - While RESG's percentage of our total loans may increase in the near term due to a $15,000 combination of factors, including funding of RESG's record 2022 level of $10,000 originations and slower loan repayments in the current high- $5,000 interest rate environment, we expect to achieve greater portfolio diversification in future years. 3Q23 2Q23 1Q23 4Q22 3Q22 2Q22 1Q22 4Q21 3Q21 2Q21 1Q21 4Q20 3Q20 1Q20 2Q20 4Q19 3Q19 2Q19 1Q19 4Q18 3Q18 2Q18 1Q18 4Q17 3Q17 2Q17 1Q17 4Q16 8 Bank OZK#9RESG - Nationally Recognized Industry Leader Portfolio Importance RESG Loans at September 30, 2023 accounted for: • 63% of our funded non-purchased loans Portfolio Statistics - as of September 30, 2023 Total funded Total funded & unfunded • 81% of our unfunded closed loans • 71% of our total funded and unfunded balances of non- purchased loans $15.77 Billion $32.64 Billion Loan-to-cost ("LTC") ratio 53% * Loan-to-value ("LTV") ratio 43% * *Weighted average; assumes all loans are fully funded; LTV data based on most recent appraisals and utilizing, in most cases, "as stabilized" values for income producing properties RESG Business Model Reduces Credit Risk ■ We are the sole senior secured lender giving us the lowest risk position in the capital stack ☐ Our transactions typically include some combination of four important factors: ◉ - Strong & capable sponsors, preferred equity and mezz debt providers Marquee projects Low leverage with substantial equity and mezz debt (all "equity" relative to our senior secured position) Defensive loan structure providing substantial protection to the bank Over RESG's 20-year history, asset quality has been excellent with a weighted average annual net charge-off ratio (including OREO write-downs) of only 8 bps. ☐ ☐ RESG's Life of Loan Focus Thorough underwriting including detailed modeling and testing for economic stress, interest rate stress, exit refinancing stress and cap rate stress Rigorous economic analysis including supply and demand metrics for the relevant market, submarket and micro- market, as appropriate Comprehensive and consistent documentation under the supervision of RESG's in-house legal team in coordination with outside counsel ■ An emphasis on precision at closing handled by RESG's team of closers and paralegals Thorough life-of-loan asset management by teams of skilled asset managers Bank OZK 9#10Recent Trends in RESG Loan Originations and Repayments Quarterly RESG Originations ($ billions) Quarterly RESG Loan Repayments & Other Activity ($ billions) FY2019 FY2020 Q1 FY2018 $1.00 $1.19 $1.86 Q2 Q3 Q4 Total* $1.47 $1.08 $4.74 FY2018 $1.15 $2.03 $1.44 $6.48 FY2019 $1.76 $1.67 $1.40 $1.77 $6.59 FY2020 $1.13 $1.54 $1.00 $0.69 Q1 Q2 $0.79 $1.40 $1.52 $1.34 $0.65 $1.19 Q3 Q4 Total* $1.11 $4.82 $1.66 $5.67 $3.54 FY2021 $1.28 $1.46 $2.21 $2.99 $7.94 FY2021 $1.48 $1.68 FY2022 $3.14 $3.53 $4.35 $2.81 $13.82 FY2022 $1.31 $2.34 $1.34 $1.72 $1.28 $6.22 $0.72 $5.65 FY2023 $1.81 $1.41 $1.95 $5.17 FY2023 $0.91 $1.03 $1.10 $3.04 *9M23 Not Annualized *9M23 Not Annualized • • • • RESG loan originations were $1.95 billion in the third quarter of 2023. • RESG loan originations for the first nine months of 2023 were $5.17 billion following record origination volume in 2022. Given the typical lag between RESG originations and the funding of such loans, the record 2022 origination volume should continue to contribute meaningfully to funded loan growth in the remainder of 2023 and 2024. RESG origination volume in the fourth quarter of 2023 is expected to be the highest of the year, with full year origination volume likely to be around the level achieved in 2021. Origination volume may vary significantly from quarter to quarter and may be impacted by interest rates, economic conditions, competition or other factors. • • RESG's loan repayments and other activity were $1.10 billion in the quarter just ended and $3.04 billion for the first nine months of 2023. RESG loan repayments have been subdued for the first nine months of 2023 as many sponsors have been carefully monitoring interest rates and refinance market conditions to determine when to move projects from construction financing to bridge or permanent loans. RESG loan repayments may vary substantially from quarter to quarter and may have an outsized impact on our outstanding loan balances in one or more quarters. 10 Bank OZK#11($ billions) Cadence of RESG Originations and Repayments - by Year of Origination The table below shows the amount of each year's originations which have been repaid and which remain as outstanding commitments, both funded and unfunded, as of September 30, 2023. $15.00 $14.00 $13.00 $13.82 $ Total Annual Originations $ Amount Repaid $0.06 $12.00 $ Remaining Commitment (funded and unfunded) $11.00 $10.00 $9.11 $9.00 $8.14 $8.00 $7.00 $6.00 $7.94 $6.48 $6.59 $1.54 $13.76 $5.17 $4.74 $2.52 $5.00 $8.56 $7.93 $4.00 $4.40 $6.40 $3.00 $4.41 $5.17 $2.00 $4.07 $1.00 $- $2.08 $0.07 $0.21 $0.55 $0.33 Pre 2016* 2016 2017 2018 2019 2020 2021 2022 9M23 * Amounts repaid are not shown for pre-2016 originations Total Originations / Amount Repaid / Remaining Commitment 11 <> Bank OZK#12Changes in the Funded Balance of RESG Loans and Our Total Unfunded Balance for the Third Quarter and First Nine Months of 2023 Third Quarter of 2023 First Nine Months of 2023 $20.00 Activity in $15.00 $2.47 ($1.10) ($3.04) $6.21 RESG Funded $10.00 Balances $14.40 $15.77 $12.60 $5.00 ($ billions) $0.00 6/30/23 RESG Funded Balance 3Q23 RESG Fundings 3Q23 RESG Repayments & Other Activity 9/30/23 RESG Funded Balance 12/31/22 RESG Funded Balance 9M23 RESG Fundings 9M23 RESG Repayments & Other Activity $15.77 9/30/23 RESG Funded Balance Third Quarter of 2023 First Nine Months of 2023 $25,000 Activity in $22,500 Total Unfunded $20,000 ($620) $137 $132 ($144) Balances $21,120 $17,500 $675 ($39) ($1,398) $324 $20,625 $21,063 $20,625 ($ millions) $15,000 6/30/23 Balance of Unfunded Loans RESG Community ABLG CBSG Banking 9/30/23 Balance of Unfunded Loans 12/31/22 Balance of Unfunded Loans RESG Community Banking ABLG CBSG 9/30/23 Balance of Unfunded Loans 12 Bank OZK#13RESG Portfolio By Origination Date & LTV (As of September 30, 2023) The loan-to-value ("LTV") metrics on individual loans within the RESG portfolio as of September 30, 2023, are illustrated below. All credits had LTV ratios of 68% or less, except for three credits which have been discussed in previous Management Comments documents, and are as follows: • . Development near Lake Tahoe. A $56 million performing credit which has been substandard accrual since 2019 and has an 84% LTV. Minneapolis hotel. A $19.98 million credit which became past due during the quarter just ended, resulting in a downgrade from substandard- accrual to substandard-nonaccrual and a $3.78 million charge-off. This credit is subject to ongoing collection efforts and is carried at 85% of "as- is" appraised value. Chicago land. A $128 million performing credit which is special mention and has a 95% LTV. The sponsor is working to bring in new capital, is considering a potential extension and, at quarter end, had a cash reserve with us of approximately $8.0 million that is not included in the LTV calculation. Loan-to-Value Ratio 110% 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Bubble Size Reflects Total Funded and Unfunded Commitment Amount Dec-07 Dec-08 Dec-09 Dec-10 Dec-11 Dec-12 Dec-13 • Multifamily • Mixed Use ⚫ Office ⚫ Life Science Condo • Industrial • Land ⚫ Hotel Dec-14 Origination Date O Retail SF Lots & Homes LTV ratios assume all loans are fully funded. LTV data based on most recent appraisals and utilizing, in most cases, "as stabilized" values for income producing properties. 13 Dec-15 Dec-16 Dec-17 Dec-18 Dec-19 Dec-20 Dec-21 Dec-22 Dec-23 Bank OZK#14$10,000 RESG's Nationwide Influence Across Multiple Product Types Provides Exceptional Portfolio Diversification RESG Portfolio Diversity by Product Type - as of September 30, 2023 Total Commitment ($ millions) and Leverage $9,000 $8,000 $7,000 $6,000 $5,000 Total Commitment by Product Type ($ millions) ■Funded Balance $4,000 $3,000 46% 43% 42% 41% $2,000 $1,000 $- Unfunded Commitment Loan-to-Cost* ▲ Loan-to-Value* 56% 57% 54% 54% 53% 48% 45% 42% Life Science 43% 44% 34% $3.4B (10.5%) Industrial $3.3B (10.0%) Condo $3.3B (10.0%) * Weighted average; assumes all loans are fully funded; LTV data based on most recent appraisals and utilizing, in most cases, "as stabilized" values for income producing properties. ** Mixed use projects contain multiple property types, none of which individually contribute 75% or more of the project value. Product Type / Total Commitment ($B) / (% of Total Commitment) 14 39% SF Lots & Homes $0.1B (0.2%) Retail 84% $0.0B 96% (0.1%) Bank OZK 120% 100% 80% 80% 60% 62% 0% 40% 20% LTC & LTV Ratios#15Total Commitment ($ millions) $6,000 $5,000 $4,000 $3,000 $2,000 $1,000 $- Top 10 RESG's Portfolio Diversity By Geography the national scope and significant geographic diversity in RESG's business. RESG's total commitments in each geographic area in which it had loans at September 30, 2023 reflect New York-Newark-Jersey City, NY-NJ-PA Miami-Fort Lauderdale-West Palm Beach, FL San Diego-Carlsbad, CA $2,000 $3,162 $4,379 #11-#20 Los Angeles-Long Beach-Anaheim, CA $1,921 San Francisco-Oakland-Hayward, CA $1,642 Chicago-Naperville-Elgin, IL-IN-WI $1,588 Dallas-Fort Worth-Arlington, TX $1,562 Atlanta-Sandy Springs-Roswell, GA $1,365 Phoenix-Mesa-Scottsdale, AZ $1,278 Washington-Arlington-Alexandria, DC-VA-MD-WV $1,276 Boston-Cambridge-Newton, MA-NH $1,215 Philadelphia-Camden-Wilmington, PA-NJ-DE-MD $982 Riverside-San Bernardino-Ontario, CA $950 Nashville-Davidson--Murfreesboro--Franklin, TN $928 Austin-Round Rock-San Marcos, TX $833 Tampa-St. Petersburg-Clearwater, FL $734 Denver-Aurora-Lakewood, CO $661 Seattle-Tacoma-Bellevue, WA $636 Savannah, GA $528 Las Vegas-Henderson-Paradise, NV $489 Charlotte-Concord-Gastonia, NC-SC $389 Raleigh, NC $326 Cape Coral-Fort Myers, FL $284 San Antonio-New Braunfels, TX Baltimore-Columbia-Towson, MD Houston-The Woodlands-Sugar Land, TX Minneapolis-St. Paul-Bloomington, MN-WI Salt Lake City, UT $271 $259 $251 $203 $192 Sacramento--Roseville--Arden-Arcade, CA $176 Portland-Vancouver-Hillsboro, OR-WA $172 North Port-Sarasota-Bradenton, FL $130 Columbus, OH | $129 Durham-Chapel Hill, NC $116 Naples-Immokalee-Marco Island, FL $103 Reno, NV $103 Oklahoma City, OK $100 Cincinnati, OH-KY-IN $92 $88 Geographic Area 15 San Jose-Sunnyvale-Santa Clara, CA Madison, WI | $88 Milwaukee-Waukesha-West Allis, WI $86 Charleston-North Charleston, SC | $85 St. Louis, MO-IL | $83 Louisville/Jefferson County, KY-IN $76 Hilton Head Island-Bluffton-Beaufort, SC | $75 Port St. Lucie, FL Birmingham-Hoover, AL $71 $66 Fort Collins, CO $62 $60 Garfield, CO $58 Winchester, VA-WV Grand Rapids-Wyoming, MI $58 Cleveland-Elyria, OH $56 Colorado Springs, CO $55 Pittsburgh, PA $54 Orlando-Kissimmee-Sanford, FL $48 Bellingham, WA $26 Palm Bay-Melbourne-Titusville, FL $19 Bank OZK#16% of Total Commitment The RESG Portfolio Includes Loans of Many Different Sizes RESG Portfolio Stratification by Total Commitment - As of September 30, 2023 ($ millions) Commitment Distribution by Size No. of Total Funded $20,000 100% Tranche Loans Funded & Unfunded ■Funded ($ millions) $0 - $125mm 263 $ 8,169 $ 15,037 ▲ LTV Ratio* (%) Unfunded ($ millions) LTC Ratio* (%) 90% $125+ mm - $250mm 52 3,372 8,855 $250+ mm- - $375mm 13 1,219 3,924 80% $375+ mm - $500mm 6 1,866 2,494 $15,000 $500+ mm Total 3 1,143 2,330 70% 337 $ 15,769 $ 32,640 12% 8% 27% 7% 56% 60% 54% 52% 50% 50% $10,000 50% 46% $5,000 40% 45% 43% 43% 43% 42% 30% 20% 10% 0% $0 - $125mm $125+ mm - $250mm $250+ mm - $375mm $375+ mm - $500mm $500+ mm * Assumes all loans are fully funded; calculation based on total commitment by tranche as a % of total cost and total appraised value of loans within each tranche. LTV data based on most recent appraisals and utilizing, in most cases, "as stabilized" values for income producing properties. Bank OZK 16#17Community Bank Lending - An Important & Well-Established Business Community Banking Business Model • Our Community Banking loans, which accounted for 20% of the funded balance of non-purchased loans as of September 30, 2023, include consumer and small business loans, loans originated by our commercial (generalist) lenders, and loans originated by our specialty lending teams in Community Banking, which include our government guaranteed, agricultural (including poultry), business aviation, affordable housing, middle market CRE, home builder finance and equipment finance/capital solutions lending teams. • Growth in these units is an important part of our broader strategy for portfolio diversification, both in terms of product types and geography. ($ Millions) Community Banking's Non-purchased Loans $6,000 $5,015 $5,029 $4,631 $4,748 $4,792 $4,796 $4,391 $5,000 $4,179 $4,181 $4,000 $3,000 $2,000 $1,000 $- 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 Period End Non-purchased Community Banking Loans 17 1Q23 2Q23 3Q23 Bank OZK#18Indirect RV & Marine Lending - A Nationwide Business Indirect RV & Marine lending ("ILD") is a nationwide business that has allowed us to originate consumer loans while maintaining our conservative credit-quality standards. Period-End Loan Balance ($ Millions) $3,000 $2,831 • $2,717 $2,750 $2,500 $2,484 $2,305 $2,329 $2,250 $2,011 $2,040 $2,121 $2,201 $2,000 $1,750 $1,500 $1,250 $1,000 $750 $500 $250 $- 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 ILD Portfolio Mix* ILD Trends $ thousands 134,163 41,608 This portfolio accounted for 11% of the funded balance of non- purchased loans as of September 30, 2023. Our objective is to maintain this portfolio within a range of 10% to 15% of our total loans. As of September 30, 2023, the non-purchased indirect portfolio had a 30+ day past due ratio of 14 bps. • For the third quarter and first nine months of 2023, our annualized net charge-off ratio for the non- purchased indirect portfolio was 31 bps and 27 bps, respectively. ILD Non-purchased Loans By Loan Size* RV Portfolio Marine Portfolio 53% 47% Loan Size $1 million + $750k - $999k $250k - $749k $50k-$249k Total # $ thousands Total # 1 $ 1,602 64 $ 48 < $50k Total 569 10,473 6,490 17,533 $ 178,133 1,169,981 164,527 1,514,243 691 6,646 3,248 10,697 $ 1,316,436 257,473 785,012 98,180 Total Marine Total RV * At September 30, 2023 18 <> Bank OZK#19Asset Quality Consistently Better than the Industry Average Net Charge-Off Ratio (%) (All data annualized where appropriate) 2.52 2.55 1.75 1.55 Net Charge-off Ratios: 3Q23 9M23 • Non-purchased loans: 0.17% 0.12% • Purchased loans: -1.64% 2.01% • Total loans: 0.15% 0.15% 1.10 9M2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 - FDIC Insured Institutions * 0.97 0.83 0.78 0.59 0.73 0.69 0.57 0.59 0.59 0.53 0.56 0.49 0.49 0.39 0.45 0.49 0.46 0.44 0.47 0.50 0.48 0.52 0.50 0.45 0.33 0.26 0.17 0.36 0.24 0.22 0.20 0.25 0.27 0.24 0.26 0.10 0.11 0.12 0.16 0.17 0.07 0.07 0.34 0.11 0.16 0.15 0.06 0.04 1.29 2011 2010 2009 <> Bank OZK Since going public in 1997, our average annual net charge-off ratio has outperformed the industry in EVERY year, and it has been approximately 35% of the industry's ratio. More recently, over the last ten years our average annual net charge-off ratio has been approximately 14 bps, or approximately 31% of the industry's ratio. 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 Bank OZK 19 * Data for all FDIC insured institutions from the FDIC Quarterly Banking Profile, last updated second quarter 2023. Annualized when appropriate.#20Our Favorable Ratios of Nonperforming Loans, Nonperforming Assets and Loans Past Due Provide Meaningful Data Points on our Asset Quality Asset Quality Overview OZK NPLs ($) OZK NPLs / Non-purchased Loans (%) Our ratios for nonperforming non- purchased loans ("NPLs"), nonperforming assets, excluding purchased loans ("NPAs") and non- purchased loans past due 30+ days, including nonaccrual non- purchased loans ("Loans Past Due") continued our longstanding track record of performing well relative to industry averages, and we expect that favorable performance to continue. NPLs were $63 million, or 0.25% of total non-purchased loans, at 9/30/2023. NPAs, which include NPLs and foreclosed assets, were $131 million, or 0.40% of total assets, at 9/30/2023. Loans Past Due, including past due nonaccrual non-purchased loans, were $53 million, or 0.21% of total non-purchased loans, at 9/30/2023. Loans Past Due ($ millions) NPAS ($ millions) $100 $80 $60 $40 $20 $- NPLs ($ millions) $150 $125 $100 $75 $50 $25 $- 2Q09 $100 $80 $60 $40 $20 $- 6007 4Q09 3Q11 2Q12 3Q12 4Q12 1Q13 2Q13 3Q13 4Q13 1Q14 2Q14 3Q14 ντον 1Q15 2Q15 3Q15 4Q15 1Q16 2Q16 3Q16 4Q16 1Q17 2Q17 3Q17 4Q17 1Q18 2Q18 3Q18 4Q18 1Q19 2Q19 3Q19 στον 1Q20 FDIC Industry Data (%)* 6.0% 5.0% 4.0% 3.0% 2.0% 1.0% 2Q20 3Q20 4Q20 IZOL 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 0.0% *Note: Data for all FDIC insured institutions from the FDIC Quarterly Banking Profile, last updated second quarter 2023. Percent of Loans Noncurrent is the percentage of loans that are past due 90 days or more or that are in nonaccrual status. OZK NPAs ($) OZK NPAS/Total Assets (%) FDIC Industry Data (%) ** 4.0% 6008 4Q09 1Q10 2Q10 BQ10 4Q10 1Q11 2Q11 3Q11 4Q11 1Q12 2Q12 3Q12 4Q12 STOL OZK Loans Past Due ($) 2Q13 BQ13 4Q13 1Q14 2Q14 3014 4Q14 1Q15 2Q15 3Q15 4Q15 1Q16 2Q16 3Q16 4Q16 1Q17 2Q17 3Q17 4Q17 1Q18 2Q18 BQ18 4Q18 1Q19 2Q19 ** Note: Data for all FDIC insured institutions from the FDIC Quarterly Banking Profile, last updated second quarter 2023. Noncurrent assets plus other real estate owned to assets (%). στο ε 4Q19 1Q20 2Q20 3Q20 4Q20 1Q21 2Q21 BQ21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 OZK Loans Past Due % FDIC Industry Data (%) *** 2Q09 3Q09 4Q09 1Q10 2Q10 3Q10 4Q10 1Q11 2Q11 BQ11 4Q11 1Q12 2Q12 3Q12 4Q12 1Q13 2Q13 3Q13 4Q13 1Q14 2Q14 3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 1Q16 2Q16 BQ16 4Q16 1Q17 2Q17 3Q17 4Q17 1Q18 2Q18 3Q18 20 4Q18 *** Note: Data for all FDIC insured institutions from the FDIC Quarterly Banking Profile, last updated second quarter 2023. Percent of Loans Noncurrent + Percent of Loans 30-89 Days Past Due. Bank OZK 1Q19 2Q19 3Q19 4Q19 1Q20 2Q20 3Q20 4Q20 1Q21 2Q21 3Q21 4Q21 1Q23 2Q23 3Q23 8.0% 6.0% 4.0% 2.0% 0.0% 3.0% - 2.0% 1.0% 0.0%#21Allowance for Credit Losses ("ACL") Build Over the Last Four Quarters Over the last five quarters we have increased our total ACL by a net $162 million. A large part of this increase was attributable to our $9.8 billion cumulative combined growth in total outstanding loans and unfunded loan commitments. The increase in our overall ACL percentage from 0.83% of total outstanding loans and unfunded loan commitments at June 30, 2022 to 1.00% at September 30, 2023 primarily reflected changes in economic assumptions as the Fed increased the Fed funds target rate by 525 bps. Over the last five quarters, we maintained a cautious outlook on macroeconomic conditions. Accordingly, in calculating our ACL, we have more heavily weighted the collective downside scenarios, specifically Moody's S4 (Alternative Adverse Downside) and S6 (Stagflation) scenarios, than Moody's Baseline scenario. All of this has resulted in cumulative provision expense of $194 million even as our cumulative net charge-offs were only $32 million. ACL Period End Balances and Quarterly Growth ($ millions) $500 1.10% 1.00% $462 $450 0.95% 1.00% $35 0.92% 0.87% $33 $400 0.85% 0.90% 0.83% $28 $350 $30 0.80% $300 $36 $300 0.70% $250 $200 0.50% ACL at 6/30/2022 3Q22 4Q22 1Q23 2Q23 3Q23 ACL at 9/30/2023 Total ACL at Period End ACL Build During Period Total ACL % at Period End 0.60% ACL % of Total Loans + Unfunded Commitment We are particularly pleased to have reported record net income and record diluted earnings per share in each of the last four quarters while achieving a substantial build in our ACL. 21 <> Bank OZK#22Provision and ACL Our provision for credit losses was $44.0 million and $121.6 million, respectively, for the third quarter and first nine months of 2023, while our net charge-offs were $9.4 million and $25.4 million, respectively, for the third quarter and first nine months of 2023. As of September 30, 2023, our total ACL was $461.5 million, or 1.00% of total outstanding loans and unfunded loan commitments. This included our allowance for loan losses ("ALL"), which was $303.4 million, or 1.20% of total outstanding loans, and our reserve for losses on our unfunded loan commitments, which was $158.1 million, or 0.77% of unfunded loan commitments. 9M23 ACL Activity ($ millions) 3Q23 ACL Activity ($ millions) Allowance for Loan Losses ("ALL") Reserve for losses on unfunded loan commitments ("ULC") $50 ACL = $462 $158 ($6) ($9) $304 $500 ACL = $427 $400 $164 $300 $200 $263 $100 ACL at 6/30/23 3Q23 Provision 3Q23 NCOs ACL at 9/30/23 Related to ALL Related to Reserve on ULC 3Q23 Provision $500 $120 $2 ACL = $462 $400 ACL = $365 ($25) $158 $300 $156 $200 $304 $100 $209 Scenario Forecast Overview The calculations of our provision for credit losses for the third quarter of 2023 and our total ACL at September 30, 2023 were based on a number of key estimates, assumptions and economic forecasts. We utilized recent economic forecasts provided by Moody's, including their updates released in September 2023. In our selection of macroeconomic scenarios, we have more heavily weighted the collective downside scenarios, specifically the Moody's S4 (Alternative Adverse Downside) and S6 (Stagflation) scenarios, than the Moody's Baseline scenario. ACL at 12/31/22 9M23 Provision Related to ALL 9M23 Provision Related to Reserve on ULC 9M23NCOs ACL at 9/30/23 22 22 Bank OZK#23Robust Stress Testing Even though the Economic Growth, Regulatory Relief and Consumer Protection Act of 2018 repealed portions of the Dodd-Frank Act stress testing requirements, we continue to conduct robust stress tests. B III Capital stress testing, including the most severe annual Federal Reserve stress scenario and six other scenarios, is completed annually Liquidity stress testing with five different scenarios is completed quarterly Commercial Real Estate ("CRE") stress testing is completed quarterly utilizing at least seven different scenarios These tests provide us excellent insight into our expected performance under a broad range of stress scenarios. I 23 Bank OZK#24High Performing Regional Branch Network Provides Diverse and Stable Deposits Substantial and Diverse Sources of Liquidity Well-Positioned Securities Portfolio 24 24 <> Bank OZK#25Diverse & Stable Deposit Base and Liquidity Sources In recent years, we have worked to improve the mix and quality of our deposit base by focusing significant efforts on growing our core relationships. This groundwork has been very helpful in the current environment, allowing us to continue to grow deposits even as many banks have seen deposit outflows. Like many in the industry, we have seen a shift in the mix of deposits away from noninterest bearing and lower cost deposits to more time deposits as many customers have been taking advantage of increases in time deposit rates. Deposit Composition Overview ($ millions) Available Primary & Secondary Liquidity Sources as of September 30, 2023 ($ millions) 9/30/2022 12/31/2022 Period Ended 3/31/2023 6/30/2023 9/30/2023 Noninterest Bearing Consumer and Commercial Interest Bearing: $ 4,824 23.6% $ 4,658 21.7% $ 4,420 19.8% $ 4,535 18.9% $ 4,284 16.8% Most of our deposits are generated through our network of 229 retail branches in Arkansas, Georgia, Florida, North Carolina, and Texas. Consumer Non-time Consumer Time Commercial - Non-time 4,198 20.6% 4,127 20.2% Commercial-Time Public Funds 2,891 14.2% 557 2,055 2.7% 3,916 18.2% 4,936 23.0% 2,741 516 12.7% 3,490 15.7% 6,155 27.6% 2,487 11.2% 3,143 13.1% 7,499 31.3% 2,928 8,756 11.5% 34.3% Because of the substantial "retail" nature of our 2,334 9.7% 2,321 9.1% deposit base, the majority 2.4% 560 2.5% 621 2.6% 10.1% 2,103 9.8% 2,325 10.4% 2,595 10.8% Brokered Reciprocal Total 1,322 6.5% 2,050 9.5% 2,104 9.5% 2,356 9.8% 428 $ 20,402 2.1% 100.0% 578 2.7% 743 3.3% 901 3.8% $ 21,500 100.0% $ 22,283 100.0% $ 23,983 100.0% 684 2.7% 2,992 11.7% 2,775 10.9% 813 3.0% $ 25,553 100.0% Total Capacity Outstanding Available Liquidity Cash & Cash Equivalents $ 1,864 $ $ 1,864 Unpledged Investment Securities 2,339 2,339 FHLB 8,919 Unsecured Lines of Credit 975 4,068 * 125 4,850 850 Fed Discount Window** Total 364 364 $ 14,461 $ 4,193 $ 10,267 * FHLB Borrowings outstanding included $1.30 billion of borrowings outstanding and $2.77 billion of outstanding letters of credit at 9/30/23. of our deposits are insured (67% at September 30, 2023) and, in the case of public funds and certain other deposits, collateralized (14% at September 30, 2023). As of September 30, 2023, our average account balance was approximately $42,000. The diversity of our deposit base is an important factor in the stability of our deposits, as demonstrated in recent quarters. ** Funds available through Fed discount window does not include any enhanced borrowing capacity resulting from the Bank Term Funding Program. 25 Bank OZK#26Well-Positioned Investment Securities Portfolio • We have a well- positioned investment securities portfolio. We have no held- to-maturity ("HTM") securities Our securities portfolio has a short effective duration Period-End Securities Balance ($ millions) $5,000 $4,500 $4,000 $3,500 $3,000 $2,500 $2,000 5.00% $584 $647 $556 $808 $941 $1,006 $1,052 $1,024 $1,024 3.00% 4.00% Total Tax Equivalent Yield 2.66% 2.559 2.56% 2.00% 2.36% $1,500 $1,000 2.06% 1.68% 1.48% 1.00% 1.31% 1.25% $500 $3,199 $3,348 $3,172 $2,902 $2,589 $2,494 $2,375 $2,247 $2,130 S- 0.00% 3021 4021 1022 2022 3022 4022 1Q23 2023 3Q23 Effective Duration* 2.05 2.23 2.64 3.16 3.59 3.63 3.64 3.62 3.79 Convexity* -0.42 -0.63 -0.09 -0.02 0.08 0.05 0.04 0.04 0.12 Securities are a low percentage of total assets Taxable Tax-exempt * Effective duration and convexity data as of the end of each respective quarter. Total Tax Equivalent Yield • At September 30, 2023, our investment securities portfolio was $3.15 billion, a decrease of $0.38 billion, or 10.6%, from September 30, 2022 and $0.12 billion, or 3.3% not annualized, as compared to June 30, 2023. . Our investment securities portfolio contains a number of short-term securities providing us cash flow to reinvest at current interest rates or otherwise redeploy. Principal cash flow from maturities and other principal repayments in the fourth quarter of 2023 is expected to be approximately $0.14 billion, or about 4.3% of the portfolio. Cumulative principal cash flow for the next four quarters through September 30, 2024, is expected to be approximately $0.56 billion, or about 17.3% of the portfolio. • In the quarter just ended, our investment portfolio yield on a fully taxable equivalent basis was 2.66%, an increase of 60 bps from the third quarter of 2022 and 10 bps from the second quarter of 2023. * Effective duration and convexity data as of the end of each respective quarter. 26 Bank OZK#275 <> Our Industry Leading Net Interest Margin and Efficiency Ratio result in Dominant Profitability <> Bank OZK 27 27#28Net Interest Income Is Our Largest Category of Revenue As shown below, our net interest income for the third quarter of 2023 was a record $367 million, a 24.7% increase from the third quarter of 2022. Our net interest income for the first nine months of 2023 was $1.07 billion, a 32.0% increase from $810 million million for the first nine months of 2022. Net Interest Income ($ millions) $400 $350 $367 $357 $345 $332 $295 $300 $266 $266 $248 $249 $250 $200 $150 $100 $50 $- Our net interest income in the quarter just ended was our fifth consecutive record and resulted from our increased revenue from growth in average earning assets more than offsetting the impact of the decrease in our net interest margin. In the fourth quarter of 2023, we expect further growth in average earning assets and further decreases in our net interest margin, with the interplay between these two metrics, along with Fed interest rate decisions, primarily determining whether net interest income increases or decreases from the level achieved in the quarter just ended. I 28 Bank OZK#29Net Interest Margin Trends • During the quarter just ended, our net interest margin was 5.05%, decreasing 27 bps from the second quarter of 2023, but increasing two bps from the third quarter of 2022. Compared to the second quarter of 2023, our yield on average earning assets in the quarter just ended increased 19 bps to 7.76%, and our cost of interest bearing liabilities increased 55 bps to 3.59%. Compared to the third quarter of 2022, our yield on average earning assets increased 224 bps and our cost of interest bearing liabilities increased 287 bps. Net Interest Margin vs. the Industry Favorable 2.04% Variance vs Industry* 6.00% 5.54% 5.46% 5.32% 5.03% 5.05% 5.00% 4.52% 4.41% 4.16% 4.24% 4.00% 3.37% 3.31% 3.28% 3.14% 2.80% 3.00% 2.56% 2.56% 2.54% 2.00% 1.00% 0.00% 3Q21 4Q21 1Q22 Bank OZK 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 FDIC Insured Institutions* We continue to outperform the industry on net interest margin. In fact, in the second quarter of 2023, the latest quarter for which comparative data is available, our net interest margin outperformed the industry by 204 bps. * Data for all FDIC insured institutions from the FDIC Quarterly Banking Profile, last updated second quarter 2023. 29 Bank OZK#30Our Core Spread and Cost of Interest Bearing Deposits ("COIBD") During the quarter just ended, our core spread, which is how we describe the difference between our yield on non-purchased loans and our COIBD, was 5.11%, a decrease of 44 bps and 62 bps from the second quarter of 2023 and third quarter of 2022, respectively. Core Spread 7.00% 6.00% 5.59% 5.73% 5.08% 5.14% 5.26% COIBD 6.05% 5.87% 5.55% 5.11% 5.00% 3.48% 4.00% 2.92% 3.00% 2.20% 1.33% 2.00% 0.59% 1.00% 0.31% 0.24% 0.23% 0.29% 0.00% 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 Yield on Non- 5.39% 5.83% purchased loans 5.37% 5.55% 6.32% 7.38% 8.07% 8.47% 8.59% COIBD 0.31% 0.24% 0.23% Core Spread 5.08% 5.59% 5.14% 0.29% 5.26% 0.59% 1.33% 2.20% 2.92% 3.48% 5.73% 6.05% 5.87% 5.55% 5.11% Over the last six quarters since the Fed started increasing the Fed funds target rate, our non-purchased loan yields increased 322 bps while our COIBD increased 325 bps, resulting in a cumulative decrease in our core spread of 3 bps. Over that same period, our net interest margin increased 81 bps primarily due to a change in the mix of our average earning assets, among other factors. During the last three quarters, our COIBD increased more than our yield on non-purchased loans, as deposit rates began to catch up with changes in variable-rate loan yields. Assuming that the Fed is at or near the end of its tightening cycle, we expect our COIBD will continue to increase in the coming quarters at a faster rate than increases, if any, in our loan yields, resulting in further decreases in our core spread and net interest margin. 30 Bank OZK#31Efficiency Ratio Among the Best in the Industry • Most banks with a good efficiency ratio focus relentlessly on controlling costs. We take a different approach. We achieve our excellent efficiency ratio by pursuing a business model that generates strong revenue. This allows us to be highly efficient while also constantly improving our products and technology for our customers and providing competitive pay and benefits for our teammates. • As shown below, in the quarter just ended, our efficiency ratio was 32.6%. Efficiency Ratio (%) vs. the Industry 63.2 70.0% 60.4 61.9 58.7 56.2 55.7 55.2 53.0 60.0% 50.0% 40.1 37.1 38.2 37.3 35.5 32.8 33.6 33.0 32.6 40.0% 30.0% 20.0% 10.0% 0.0% 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 ■ Bank OZK FDIC Insured Institutions*: We have consistently been among the nation's most efficient banks, having ranked in the top decile of the industry for 21 consecutive years. ** I * Data for all FDIC insured institutions from the FDIC Quarterly Banking Profile, last updated second quarter 2023. ** Data from S&P Global CaplQ. 31 Bank OZK#325 Our Strong Capital Provides Maximum Optionality and Shareholder Returns 32 <> Bank OZK#3311.66% 3Q23 2Q23 1Q23 4Q22 3Q22 2Q22 1Q22 4Q21 3Q21 2Q21 1Q21 4Q20 3Q20 2020 1Q20 4Q19 3Q19 2Q19 1Q19 4Q18 3Q18 2018 1Q18 4Q17 3Q17 2Q17 1Q17 4Q16 3Q16 Strong Capital Position Maximizes Optionality CET 1 Capital Ratio 20.00% Tier 1 Capital Ratio <> 20.00% 18.00% 16.00% 14.00% 12.00% 10.00% 8.00% 6.00% 4.00% 2.00% 0.00% 18.00% 16.00% 14.00% .10.77% 12.00% 10.00% 8.00% 6.00% 4.00% 2.00% 0.00% 3Q23 2023 1Q23 4022 3Q22 2Q22 1Q22 4Q21 3021 2Q21 1Q21 4Q20 3020 2Q20 1020 4Q19 3Q19 2Q19 1Q19 4Q18 3Q18 2018 1Q18 4Q17 20.00% 18.00% Total Risk Based Capital Ratio 3Q17 2Q17 1Q17 4Q16 3Q16 16.00% 14.00% 12.00% 10.00% 8.00% 6.00% 4.00% 2.00% 0.00% Tier 1 Leverage Ratio 20.00% 18.00% 16.00% 14.10% 14.00% 12.00% 10.00% 8.00% 6.00% 4.00% 2.00% 0.00% 3Q23 2Q23 1Q23 4Q22 3Q22 2Q22 1Q22 4Q21 3Q21 2Q21 1Q21 4Q20 3Q20 2Q20 1Q20 4Q19 3Q19 2Q19 1Q19 14.24% 3Q23 2Q23 1Q23 4Q22 3Q22 2Q22 1Q22 4Q21 <> Bank OZK 3Q21 2Q21 1Q21 4Q20 3Q20 2Q20 1Q20 4Q19 3Q19 2Q19 1Q19 4Q18 3Q18 2Q18 1Q18 4Q17 3Q17 2Q17 1Q17 4Q16 3Q16 Basel III Regulatory Capital Minimum to be considered well capitalized 33 4Q18 3Q18 2018 1Q18 4Q17 3Q17 2Q17 1Q17 4Q16 3Q16#34Building Capital and Delivering for Shareholders $40.35 $34.50 $45.00 E BVPS ■ TBVPS $40.00 $35.00 Book Value $30.00 and Tangible $25.00 Book Value $20.00 Per Share * $15.00 $8.34 $8.07 $10.00 (Period end) $5.00 $- 3Q23 3Q22 3Q21 3Q20 3Q19 3Q18 3Q17 3Q16 3Q15 3Q14 3Q13 Common We have increased our common stock cash dividend in each of the last 53 quarters and every year since our IPO in 1997. We expect to continue to increase our common stock cash dividend in future quarters. $1.50 Dividend $1.25 Payments and Stock $1.00 Repurchase $0.75 Program $0.50 $0.25 is $0.19 $0.25 $0.36 $0.47 $0.55 $0.63 $0.71 $0.80 2015 $0.94 $1.0775 $1.1325 $1.26 $0.93 $1.05 2020 2021 2022 9M22 9M23 Over the last 10 years, we have increased book value and tangible book value per common share by a cumulative 384% and 328%, respectively, resulting in compound annual growth rates of 17.1% and 15.6%, respectively. As of September 30, 2023, our book value and tangible book value per share were $40.35 and $34.50, respectively. Stock Repurchase Program Details At September 30, 2023, our current stock repurchase program had $133.5 million authorization remaining, as we did not repurchase any shares during the quarter just ended. During the first nine months of 2023, we repurchased 4.3 million shares for $151.5 million, which equates to a weighted average cost of approximately $35.19 per share. • The market price of our shares will likely be the primary factor in the timing and volume of additional stock repurchases, if any, between now and the November 9, 2023 expiration of our current program. <> Bank OZK *Calculation of the Bank's tangible book value per common share, including the reconciliation to the most directly comparable GAAP financial measure is included in the schedule at the end of this presentation. Management believes presentation of the non-GAAP financial measures provides useful supplemental information that contributes to a proper understanding of the financial results and capital levels of the Bank. 34#35Strong Results, Driven by Strong Leadership 35 <> Bank OZK#36Deep and Talented Executive Management Team Our management team has on average 14 years of experience with Bank OZK. Executive Name | Title | Years of OZK Service | Years of Relevant Experience George Gleason Chairman & CEO 44 years with OZK 46 years Brannon Hamblen President 15 years with OZK 33 years Tim Hicks Chief Financial Officer 14 years with OZK 29 years Cindy Wolfe Chief Operating Officer 25 years with OZK 35 years Alan Jessup Chief Lending Officer 15 years with OZK 29 years John Carter Chief Credit Officer 11 years with OZK 21 years Scott Trapani Chief Risk Officer 4 years 35 years with OZK Helen Brown General Counsel and Corporate Secretary 9 years with OZK 21 years Stan Thomas Chief Accounting Officer 12 years with OZK 21 years Tamara Gotham Chief Administrative Officer 7 years with OZK 15 years Jason Cathey Chief Information Officer 7 years with OZK 19 years Patrick Carr Managing Director - Corporate Finance Data & Technology 1 year with OZK 28 years 36 Bank OZK#37We Have a Strong and Diverse Board of Directors Our Board of Directors consists of 13 members, 12 of whom are independent. Our directors possess high levels of technical skill and significant and diverse business experience. Active engagement is encouraged, which creates an atmosphere of effective challenge and collaboration with management. Director Name & Principal Occupation Nicholas Brown Retired President Southwest Power Pool Robert East Chairman Robert East Company, Inc. George Gleason Chairman & CEO Bank OZK Elizabeth Musico VP, Human Resources McKesson Corporation Ross Whipple President Horizon Timber Services, Inc. Paula Cholmondeley Principal The Sorrell Group Kathleen Franklin Global Ethics & Compliance Strategy Leader Sony Group Corporation Peter Kenny Independent Market Strategist Kenny's Commentary LLC Christopher Orndorff CEO and Chief Investment Officer Cercano Management LLC Beverly Cole CEO Cole Renwick, LLC Jeffrey Gearhart Retired EVP, Global Governance & Corporate Secretary Walmart, Inc. William A. Koefoed, Jr. CFO OneStream Software LLC Steven Sadoff Chief Information Officer Cantor Fitzgerald L.P. Four female members (31%) Four directors self identified as racially or ethnically diverse (31%) Average age of 64 years, with a range of 46 to 75 years Average independent tenure of 7.5 years Our Governance Committee takes a long-term approach to Board composition. By retaining some longer-serving directors and periodically refreshing the composition of the Board, the Governance Committee seeks a blend of Board tenure that preserves institutional knowledge of the Company, our industry and our culture a key element of our long-term success - while also injecting fresh perspectives and maintaining effective strategic direction and independence. - Note: All statistics referenced on this page are as of the Annual Shareholder Meeting on May 8, 2023. 37 <> Bank OZK I I I I#38<> Non-GAAP Reconciliations 38 <> Bank OZK#39Non-GAAP Reconciliations Calculation of Total Common Stockholders' Equity, Total Tangible Common Stockholders' Equity and Tangible Book Value per Share Unaudited (Dollars in Thousands, Except per Share) As of September 30, 2013 2014 2015 2016 2017 2018 Total stockholders' equity before noncontrolling interest $ Less preferred stock 612.338 $ 875,578 $ 1,314,517 $ 2,756,346 $ 3,334,740 $ 3,653,596 Total common stockholders' equity 612,338 875,578 1,314,517 2,756,346 3,334,740 3,653,596 Less intangible assets: Goodwill (5,243) (78,669) (128,132) (657,806) (660,789) (660,789) Core deposit and other intangibles, net of accumulated amortization (14,796) Total intangibles (20,039) (28,439) (107,108) (28,624) (156,756) (64,347) (722, 153) (51,396) (712,185) (38,817) (699,606) Total tangible common stockholders' equity $ 592,299 $ 768,470 $ 1,157,761 Common shares outstanding (thousands) 73,404 79,705 Book value per common share $ Tangible book value per common share $ 8.34 $ 8.07 $ 10.99 $ 9.64 $ 88,265 14.89 $ 13.12 $ $ 2,034,193 121,134 22.75 $ 16.79 $ $ 2,622,555 $ 2,953,990 128,174 128,609 26.02 $ 28.41 20.46 $ 22.97 2019 2020 As of September 30, 2021 2022 2023 As of June 30, 2023 Total stockholders' equity before noncontrolling interest $ 4,078,324 Less preferred stock $ 4,186,285 $ 4,553,240 $ 4,539,424 $ 4,903,504 $ 4,809,891 Total common stockholders' equity 4,078,324 4,186,285 4,553,240 (338,980) 4,200,444 (338,980) 4,564,524 (338,980) 4,470,911 Less intangible assets: Goodwill (660,789) (660,789) (660,789) (660,789) (660,789) (660,789) Core deposit and other intangibles, net of accumulated amortization Total intangibles (26,608) (687,397) (16,462) (677,251) (9,791) (670,580) (3.943) (664,732) (660,789) (377) (661,166) Total tangible common stockholders' equity $ 3,390,927 $ 3,509,034 $ 3,882,660 $ 3,535,712 $ 3,903,735 $ 3,809,745 Common shares outstanding (thousands) 128.946 129,342 Book value per common share $ 31.63 $ Tangible book value per common share $ 26.30 $ 32.37 $ 27.13 $ 30.14 128,818 35.35 $ $ 117,762 35.67 $ 30.02 $ 113.136 40.35 $ 34.50 $ 113,145 39.51 33.67 Note: All share and per share data adjusted to reflect impact of 2-for-1 stock split on June 23, 2014. Represents ending balances, as determined in accordance with accounting principles generally accepted in the U.S., ending shares outstanding and tangible book value per share as of the date indicated. Unaudited, financial data in thousands, except per share amounts. 39 Bank OZK#40Non-GAAP Reconciliations Calculation of Total Common Stockholders' Equity, Total Tangible Common Stockholders' Equity and the Ratio of Total Tangible Common Stockholders' Equity to Total Tangible Assets Unaudited (Dollars in Thousands) Calculation of Average Common Stockholders' Equity, Average Tangible Common Stockholders' Equity and the Annualized Returns on Average Common Stockholders' Equity and Average Tangible Common Stockholders' Equity Unaudited (Dollars in Thousands) September 30, 2023 Total stockholders' equity before noncontrolling interest $ Less preferred stock 4,903,504 (338,980) Net Income Available To Common Stockholders Average Stockholders' Equity Before Total common stockholders' equity 4,564,524 Less intangible assets: Goodwill Core deposit and other intangible assets, net of accumulated amortization Total intangibles Total tangible common stockholders' equity Total assets Less intangible assets: Goodwill Core deposit and other intangible assets, net of accumulated amortization Total intangibles Total tangible assets Ratio of total common stockholders' equity to total assets Ratio of total tangible common stockholders' equity to total tangible assets Three Months Ended * 9/30/2022 9/30/2023 Nine Months Ended * 9/30/2022 9/30/2023 $ 128,302 $ 169,746 388,688 $ $ 503,517 Noncontrolling Interest Less Average Preferred Stock (660,789) Total Average common stockholders' equity 4,635,887 4,885,620 4,680,513 4,809,053 (338,980) (338,980) (338,980) (338,980) 4,296,907 4,546,640 4,341,533 4,470,073 Less Average Intangible Assets: (660,789) Goodwill (660,789) (660,789) (660,789) (660,789) $ 3,903,735 Core deposit and other intangible assets, net of accumulated amortization (4,747) (6,124) (1,098) $ 32,767,328 Total Average Intangibles (665,536) (660,789) (666,913) (661,887) (660,789) Average Tangible Common Stockholders' Equity $ 3,631,371 $ $ 3,885,851 3,674,620 $ 3,808,186 Return On Average Common Stockholders' Equity 11.85% 14.81% 11.97% 15.06% (660,789) 32,106,539 Return On Average Tangible Common Stockholders' Equity 14.02% 17.33% 14.14% 17.68% 13.93% * Ratios for interim periods annualized based on actual days 12.16% Calculation of Pre-Tax Pre-Provision Net Revenue Unaudited (Dollars in Thousands) Three Months Ended Nine Months Ended 9/30/2022 9/30/2023 9/30/2022 9/30/2023 Net income available to common stockholders Preferred stock dividends $ 128,302 $ 4,047 169,746 $ 4,047 388,688 $ 12,574 503,517 12,141 Earnings attributable to noncontrolling interest 37 3 50 Provision for income taxes 35,969 46,144 Provision for credit losses 39,771 Pre-tax pre-provision net revenue $ 208,089 $ 44,036 264,010 $ 111,754 50,986 564,005 $ 132,564 121,638 769,910 40 Bank OZK#41ㅁ Bank OZK