Regional banking company Columbia Banking System (NASDAQ: COLB) met Wall Street’s revenue expectations in Q1 CY2026, with sales up 40.2% year on year to $677 million. Its non-GAAP profit of $0.72 per share was 5% above analysts’ consensus estimates.
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Columbia Banking System (COLB) Q1 CY2026 Highlights:
- Net Interest Income: $594 million vs analyst estimates of $594.2 million (39.8% year-on-year growth, in line)
- Net Interest Margin: 4% vs analyst estimates of 3.9% (in line)
- Revenue: $677 million vs analyst estimates of $676.9 million (40.2% year-on-year growth, in line)
- Efficiency Ratio: 58% vs analyst estimates of 55.9% (218 basis point miss)
- Adjusted EPS: $0.72 vs analyst estimates of $0.69 (5% beat)
- Tangible Book Value per Share: $19.03 vs analyst estimates of $19.16 (6.6% year-on-year growth, 0.7% miss)
- Market Capitalization: $8.41 billion
"Our first quarter results reflect continued execution against the priorities we have previously outlined: delivering sustainable performance, strengthening our balance sheet, and returning excess capital to shareholders," said Clint Stein, Chair, CEO & President.
Company Overview
Created through the merger of two Pacific Northwest banking institutions with deep regional roots, Columbia Banking System (NASDAQ: COLB) operates Umpqua Bank, providing commercial, consumer, and wealth management services across eight western states.
Sales Growth
Net interest income and and fee-based revenue are the two pillars supporting bank earnings. The former captures profit from the gap between lending rates and deposit costs, while the latter encompasses charges for banking services, credit products, wealth management, and trading activities. Thankfully, Columbia Banking System’s 32.9% annualized revenue growth over the last five years was incredible. Its growth beat the average banking company and shows its offerings resonate with customers.
Long-term growth is the most important, but within financials, a half-decade historical view may miss recent interest rate changes and market returns. Columbia Banking System’s recent performance shows its demand has slowed significantly as its annualized revenue growth of 9.6% over the last two years was well below its five-year trend. 
Note: Quarters not shown were determined to be outliers, impacted by outsized investment gains/losses that are not indicative of the recurring fundamentals of the business.
This quarter, Columbia Banking System’s year-on-year revenue growth of 40.2% was magnificent, and its $677 million of revenue was in line with Wall Street’s estimates.
Net interest income made up 93.1% of the company’s total revenue during the last five years, meaning Columbia Banking System lives and dies by its lending activities because non-interest income barely moves the needle.
While banks generate revenue from multiple sources, investors view net interest income as the cornerstone - its predictable, recurring characteristics stand in sharp contrast to the volatility of non-interest income.
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Tangible Book Value Per Share (TBVPS)
Banks operate as balance sheet businesses, with profits generated through borrowing and lending activities. Valuations reflect this reality, emphasizing balance sheet strength and long-term book value compounding ability.
Because of this, tangible book value per share (TBVPS) emerges as the critical performance benchmark. By excluding intangible assets with uncertain liquidation values, this metric captures real, liquid net worth per share. On the other hand, EPS is often distorted by mergers and flexible loan loss accounting. TBVPS provides clearer performance insights.
Columbia Banking System’s TBVPS declined at a 1.3% annual clip over the last five years. However, TBVPS growth has accelerated recently, growing by 9% annually over the last two years from $16.03 to $19.03 per share.
Over the next 12 months, Consensus estimates call for Columbia Banking System’s TBVPS to grow by 9% to $20.74, paltry growth rate.
Key Takeaways from Columbia Banking System’s Q1 Results
Net interest income and net interest margin were in line. On the negative side, efficiency ratio missed, but EPS still managed to beat. Overall, this was a mixed quarter. The stock remained flat at $29.65 immediately following the results.
So do we think Columbia Banking System is an attractive buy at the current price? The latest quarter does matter, but not nearly as much as longer-term fundamentals and valuation, when deciding if the stock is a buy. We cover that in our actionable full research report which you can read here (it’s free).
