Columbia Banking System (COLB) Q1 2026 earnings review
Executing on Promises Amid Expected Margin Compression
Columbia delivered a solid, highly predictable Q1 2026 that tracked closely with the narrative established during their prior earnings call. Revenue reversed sequentially to $677 million and Net Income fell 11% to $192 million, heavily driven by the expected roll-off of a $17 million Q4 one-time benefit related to premium amortization and accelerated loan repayments. Management perfectly executed their capital return targets, repurchasing $200 million in stock. While the balance sheet remixing successfully lowered deposit costs, a sudden spike in non-performing assets tied to a single agricultural relationship warrants close monitoring.
🐂 Bull Case
Management previously guided for $150-200M in quarterly buybacks. They executed at the maximum end of that range, repurchasing $200M (6.5 million shares) in Q1 while keeping Tangible Book Value effectively stable at $19.03.
Despite seasonal deposit pressures, the cost of total deposits declined sequentially to 1.39%. The intentional rundown of $800M in expensive brokered deposits was partially offset by $110M in core customer deposit growth.
🐻 Bear Case
Non-performing assets spiked 33% sequentially from $200M to $264M (0.40% of total assets). The deterioration was heavily isolated to a specific agricultural industry relationship, but breaks a multi-quarter streak of pristine asset quality.
Net Interest Margin dropped 10 basis points to 3.96%. While this dip was guided by management in the prior quarter, shrinking average interest-earning asset balances compound the top-line pressure.
⚖️ Verdict: ⚪
Neutral. The company is expertly controlling what it can control (expenses, share counts, core deposit gathering) following the Pacific Premier integration, but the sudden agricultural credit blip and a shrinking balance sheet offset the operational wins.
Key Themes
Aggressive Capital Deployment
During the Q4 2025 call, management initiated a $700M buyback program and targeted an aggressive $150-200M per quarter. In Q1 2026, they successfully repurchased $200M (6.5 million shares at an average of $30.74). This programmatic capital return provides a stable floor for the stock and drives EPS accretion.
Balance Sheet Remixing
The strategy to prioritize profitability over pure growth is highly visible. Management deliberately shed $800 million in expensive brokered deposits (reducing them to $1.6B) while replacing them with $110 million in organic customer deposits. A retail/small business campaign added $450M in new deposits through mid-April. Consequently, the cost of interest-bearing deposits fell 4 bps to 2.04%, accelerating the funding cost recovery.
Agricultural Credit Shock
A reversing trend emerged in asset quality. Non-performing assets (NPAs) jumped from 0.30% to 0.40% of total assets. Net charge-offs increased to 0.30% (annualized) from 0.25%. Management explicitly cited an 'agricultural industry relationship' as the driver. While potentially isolated, any sudden 32% sequential jump in NPAs (from $200M to $264M) requires strict monitoring.
Expected Margin Reversal
NIM contracted 10 bps sequentially from 4.06% to 3.96%. However, 11 bps of Q4's margin was explicitly labeled as one-time items (CD premium amortization and an accelerated loan repayment). Backing those out, core NIM remained impressively stable despite lower interest rates, defending the management's prior claim that NIM would trend upward over the long term.
Pacific Premier Cost Synergies Flowing
Non-interest expenses decelerated sequentially by $18 million to $394 million. Excluding merger and restructuring costs, operating non-interest expense dropped $4 million sequentially to $369 million. This confirms the successful integration of Pacific Premier and sets the stage to achieve all targeted cost savings by the June 30, 2026 deadline.
Other KPIs
Stable sequentially compared to $47.8 billion in 25Q4. Commercial loans grew 6% annualized, which was fully offset by the expected runoff in below-market-rate transactional real estate loans. This intentional mix shift replaces low-yielding volume with higher-margin core relationships.
Liquidity remains robust, covering 129% of all uninsured deposits. Cash and cash equivalents decreased sequentially from $2.4B to $2.1B as the company optimized the balance sheet and deployed excess cash to reduce wholesale funding reliance.
Guidance
Management confirmed they are on track to realize 100% of previously disclosed acquisition-related cost savings by the end of Q2 2026. This implies stable-to-accelerating efficiency ratios in the back half of the year.
Key Questions
Agricultural Credit Containment
You noted an agricultural industry relationship drove the sequential jump in NPAs and charge-offs. Can you provide more detail on the specific sub-sector of agriculture, and whether you view this as a purely idiosyncratic event or a leading indicator for broader portfolio stress?
NIM Trajectory
With the expected roll-off of Q4's one-time benefits now complete, resulting in a 3.96% NIM, do you maintain your previous expectation that NIM will cross back above 4.00% in Q2 or Q3 2026?
Pace of Transactional Loan Runoff
With gross loans effectively flat as commercial growth offsets transactional runoff, when do you expect the crossover point where net organic loan growth re-accelerates the overall balance sheet?
Wholesale Funding Strategy
Brokered deposits were aggressively reduced to $1.6B this quarter. What is your target floor for brokered and wholesale funding as a percentage of total deposits as we move through the remainder of 2026?