COLB Columbia Banking System, Inc.

$COLB Q3 operating EPS was 0.82 dollars vs 0.77 expected (Zacks), even though it was down from 0.85 a year ago. Net interest income rose 22% year over year to 615 million dollars. Net interest margin hit 4.11%, up 18 basis points in one quarter. Customer deposits grew and the bank used that to pay down wholesale funding, borrowings fell to 3.3 billion dollars from 4.3 billion in Q2. It also finished the old buyback, 23.3 million shares at a 29.88 dollar average, and the board authorized a new 1.2 billion dollar program.

$COLB Q3 '26 Earnings Results & Recap • Reported GAAP EPS of $0.82 down -3.53% YoY • Reported revenue of $702M up 21.66% YoY

$COLB Columbia Banking authorizes a new $1.2B buyback with no expiration date. 🏢 Tacoma, Wash. parent of Columbia Bank, a western U.S. regional bank with $65.1B in assets 💰 $1.2B is about 14% of its ~$8.45B market value at $29.87 (16:01 ET, Oct 22, 2026) 💰 Q3's $199M of buybacks finished the old plan 📈 Q3 2026 diluted EPS was $0.78 vs $0.73 in Q2; margin 4.11%, up 18bp ⚠️ No purchases are obligated, and tangible book per share fell to $18.10 from $19.22 in Q3 📅 Next: Management discusses Q3 on a 5:00 p.m. ET call, October 22, 2026 Source: PR Newswire release, Oct 22 + SEC 8-K, Jul 30