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High materiality8/10

Columbia Banking System reports solid Q3 with margin expansion and large buyback

Oct 22, 2026, 4:14 PM EDT1 sourcesAI-analyzed

Why it may matterVerify against the original reporting

Solid Q3 metrics, margin expansion, robust deposits, and a large, open-ended buyback program support near-term upside for COLB; improved balance sheet dynamics and capital returns are price-relevant.

AI summary

What happened, with direct paths to the underlying reporting

Columbia Banking System posted solid 3Q26 results with higher net interest income and a 4.11% NIM as loan yields and funding mix improved. While non-interest income declined modestly, credit quality remained strong and capital actions dominated the case, including a new $1.2B share repurchase and an upcoming redemption plan. The combination of deposit growth, liquidity strength, and a sizable buyback could support COLB shares near term.

3Q26 diluted EPS $0.78; operating EPS $0.82.
NIM 4.11% up 18 bps QoQ on higher loan yields.
Board authorizes new $1.2B share repurchase; prior plan completed.
Deposits $52.7B; total assets $65.1B; liquidity robust.

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