OSBC

Old Second is a 55-branch Illinois community bank whose FY2025 GAAP results look soft on the surface — net income fell 5.8% to $80.3M and diluted EPS dropped a sharper 13.4% to $1.62 because the share count rose 17% to 52.7M. But the decline is largely an artifact of digesting the Bancorp Financial acquisition, which drove total assets up 22.2% to $6.90B and equity up 33.6% to $897M. The MD&A is explicit that noninterest expense jumped 27.7% on $8.4M of change-in-control/retention/severance, a 46% spike in computer/data-processing from the October 2025 systems conversion, and elevated consulting and core-deposit-intangible amortization — most of which are non-recurring integration costs. The tell is the adjusted (non-GAAP) efficiency ratio holding flat at 53.15% vs 53.22%, even as the GAAP ratio deteriorated to 57.91% from 54.36%. Underneath the noise, the franchise is healthy: wealth management grew 15.9%, service charges 10.3%, and total noninterest income rose 5.8%.

The problem is quality and price, not solvency. ROE is a pedestrian 9.0%, and net income has now declined two straight years from the FY2023 peak of $91.7M. At $23.21 the stock trades at 1.36x the $17.02 book value per share (equity $897M / 52.7M shares) — a premium that already credits an earnings rebound, while a 14.3x P/E is fair-to-full for a sub-10% ROE bank. Notably, $23.21 sits above the entire 2025 quarterly trading range disclosed in the 10-K (Q4 high was $20.96), so the market has already re-rated the integration story upward.