Columbia Banking System has crossed an inflection point. The West Coast regional bank has now effectively digested the August 2025 acquisition of Pacific Premier Bancorp. Systems conversion and nine branch consolidations were complete by Q1 2026. The previously disclosed cost savings target was hit as of the quarter-end. Q2 2026 results show the first full quarter of integration tailwind. Non-interest expense came in down $19M from the prior quarter. Pre-provision net revenue rose to $302M from $283M. The underlying earnings power is starting to appear in the print. The integration completed ahead of internal expectations, and the absence of incremental merger noise makes the underlying earnings power visible to investors for the first time.
The investment case for COLB rests on three observations. First, scale has finally arrived. At $65.4B in assets the bank has a defensible footprint across nine states stretching from Washington down through California and over to Colorado and Texas. Second, net interest margin of 3.93% is holding above the prior-year quarter. The post-merger funding base is more efficient than the legacy book. Third, capital return is real. Columbia repurchased $199M of stock in Q2. The $700M repurchase program runs through November 2026. The dividend was held at $0.37 per share, anchoring a yield profile that is materially more attractive than it was a year ago. Each of those observations is testable against the next two earnings prints, which makes the equity a name with a particularly clean forward narrative. Each of those observations is testable against the next two earnings prints, which makes the equity a name with a particularly clean forward narrative.
The bear case centers on credit quality and the deposit franchise. Non-performing assets climbed to 0.42% of total assets, up from 0.30% at year-end. Net charge-offs of 0.25% annualized are benign, but the trajectory matters. The deposit base remains deposit-rich at $52B with non-interest-bearing balances of $17.2B. The market values COLB at roughly 1.1 times tangible book. The forward P/E sits near 9.3 times, a wide discount to large-cap peers. At $30.45 per share, the equity trades inside its fifty-two week range. The dividend yield provides a floor while the integration thesis plays out. The risk-reward is balanced between yield-driven support and execution-driven upside, which is a profile that appeals to income-oriented investors and to those willing to underwrite the integration thesis.