First Quarter 2017 Financial Review

Large Banks Peer Banks Holding Company Debt Rating Senior Unsecured/Long-Term Issuer Rating Moody's S&P Fitch BB&T A2 A- A+ Cullen Frost A3 A- -- M&T Bank A3 A- A Comerica BOK Financial Corporation Huntington Fifth Third A3 BBB+ A A3 BBB+ A Baa1 BBB A- Baa1 BBB+ A KeyCorp Baa1 BBB+ A- SunTrust Baa1 BBB+ A- Regions Financial Baa2 BBB BBB First Horizon National Corp Baa3 BBB- BBB- Zions Bancorporation Baa3 BBB- BBB- U.S. Bancorp Wells Fargo & Company PNC Financial Services Group JP Morgan ༥ ???』 A+ AA A AA- A- A+ A- A+ Baa1 BBB+ A Bank of America As of 4/13/17 Source: SNL Financial Debt Ratings are not a recommendation to buy, sell, or hold securities Comerica Bank Ⓡ commitment Comerica Bank 25

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