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COLB reported Q3 2026 (quarter ended September 30, 2026) results. The stock moved +3.2% on the print.
COLBearnings

Columbia Banking System, Inc. (COLB) Q3 FY2026 earnings

October 23, 2026 · SharpeIQ Research Desk

Reported results

  • Net income (GAAP): $220 million for Q3 2026, up 6% from $208 million in Q2 2026
  • Operating net income (non-GAAP): $229 million for Q3 2026, up 6% from $217 million in Q2 2026
  • Earnings per common share - diluted (GAAP): $0.78 for Q3 2026, up from $0.73 in Q2 2026
  • Operating earnings per common share - diluted (non-GAAP): $0.82 for Q3 2026, up from $0.76 in Q2 2026
  • Net interest margin: 4.11% in Q3 2026, up 18 basis points from 3.93% in Q2 2026
  • Return on average assets (GAAP): 1.34% for Q3 2026, up from 1.27% in Q2 2026

Guidance

  • Board authorized new $1.2 billion share repurchase program with no expiration date
  • Declared quarterly cash dividend of $0.37 per common share on August 14, 2026, paid September 14, 2026

Notes

Company completed previous share repurchase authorization in Q3 2026, repurchasing 23.3 million common shares at average price of $29.88 from November 2025 through September 30, 2026. In September 2026, subsidiary issued $250 million subordinated notes due 2036 at 6.721% fixed rate for first five years. Company intends to redeem approximately $240 million of junior subordinated debentures in Q4 2026 and early 2027. Estimated regulatory capital ratios pending completion of filing.

Price and volatility reaction

The stock moved +3.2% on the print. No front-expiry chain was on file, so there is no straddle expected move. 30-day ATM implied volatility moved +0.2 vol points across the event (constant-maturity series — not the front-week crush).

MeasureValueBasis
Close before release29.892026-10-22
Close after release30.862026-10-23
Realised move+3.2%close to close
30d ATM IV change+0.2 vol ptsconstant-maturity series, not the front expiry
Price and volatility reaction. Closes either side of the release. No front-expiry chain on file for a straddle expected move. SharpeIQ — listed option chain and price_history

Source

The figures above come from the earnings release the company filed with the SEC on 2026-10-22 (8-K, Item 2.02). Read the original filing on sec.gov.

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