IBM Results Presentation Deck

Non-GAAP supplemental materials Reconciliation of revenue performance - 3Q 2022 Total revenue Total hybrid cloud Total hybrid cloud (TTM) Americas Europe/ME/Africa Asia Pacific 3Q22 Yr/Yr GAAP 6% 11% 15% 13% 1% Flat @CC 15% 19% 20% 13% 16% 16% The above reconciles the non-GAAP financial information contained in the "Financial highlights", "Revenue and P&L highlights", and "Prepared remarks" discussions in the company's earnings presentation. See Exhibit 99.2 included in the company's Form 8-K dated October 19, 2022, for additional information on the use of these Non-GAAP financial measures. 25

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