Old Second (OSBC) Q2 2026 earnings review
NIM Expansion Defies Gravity as Credit Picture Cleans Up
Old Second delivered an incredibly strong quarter, marked by a massive surprise in Net Interest Margin (NIM). Despite management's Q1 guidance that margin would 'trend back towards 5%', NIM accelerated 9 basis points sequentially to 5.23%. This drove a 10% sequential increase in Net Income to $28.2 million ($0.54 EPS). The strategy of intentionally shedding high-cost deposits acquired from Evergreen is working perfectly, dropping total cost of deposits by 5 bps. Meanwhile, the credit panic from Q1 is easing: nonperforming loans plunged by $19 million. Tangible book value grew at a double-digit annualized rate even after repurchasing 732,000 shares.
🐂 Bull Case
A 5.23% tax-equivalent NIM is rarified air for a community bank. Active balance sheet optimization is driving deposit costs down, fueling a 15.58% ROATCE and 1.65% ROAA.
Nonperforming loans reversed course, dropping from 1.46% to 1.08% of total loans. Q1's elevated charge-offs appear to have been effectively provisioned for, allowing provision expense to fall $2.0M QoQ.
🐻 Bear Case
Total deposits fell another $120.3 million (-2.16% QoQ). While intentional (shedding high-cost brokered CDs), continuing to shrink the funding base limits organic loan growth capacity.
Charge-offs remain 'relatively elevated,' specifically tied to a downtown Chicago office credit and an underwater C&I relationship. Macro office sector weakness continues to surface in the portfolio.
⚖️ Verdict: 🟢
Bullish. The bank is executing a masterclass in post-acquisition balance sheet optimization. Expanding the NIM by 9 bps in this rate environment—while simultaneously cleaning up NPLs—shows immense fundamental strength.
Key Themes
Margin Expansion Contradicts Prior Guidance
In Q1, the CFO guided that NIM would 'start to trend back towards 5%.' Instead, the tax-equivalent NIM accelerated to 5.23% (up 9 bps QoQ). This was achieved because the cost of deposits actually fell 5 basis points to 1.00%, driven specifically by an 18-basis point decline in time deposit costs. The bank successfully replaced or rolled off expensive legacy Evergreen funding while pushing loan yields up 12 basis points.
Aggressive Balance Sheet Optimization
The strategic runoff of high-cost deposits acquired in the Bancorp Financial deal is executing flawlessly. Time deposits fell from a peak of $1.26 billion in 25Q3 to $926.4 million in 26Q2. This deliberate shrinkage is the primary lever allowing Old Second to protect and expand its NIM while competitors face deposit beta pressure.
Nonperforming Assets Reversing Course
After a concerning spike in Q1, asset quality metrics improved dramatically. Nonperforming loans dropped $19.0 million QoQ to $56.5 million. Classified loans dropped $16.5 million to $132.1 million. This was driven by paydowns, upgrades to performing status, and isolated charge-offs, validating management's Q1 claim that credit issues were contained.
Powersport Portfolio Remains Volatile
The specialized Powersport loan portfolio (now $683.9 million, up from $674.1M QoQ) continues to drive elevated loss provisions. Management specifically cited 'powersport charge-offs' as a primary driver of the $7.5 million provision for credit losses this quarter. The yield trade-off is high, but so is the persistent credit friction.
Downtown Chicago CRE Pain
Macro pressures in the office sector materialized in the current quarter's losses. The CEO explicitly identified a 'downtown Chicago office credit' as a primary source of Q2 charge-offs. While Old Second's overall CRE-Investor book sits at $1.16 billion, localized distress in urban office assets remains an ongoing risk.
Overall Loan Growth Muted by Deposit Shedding
Total loans grew by $60.6 million to $5.25 billion in Q2. However, the intentional shrinkage of the deposit base (down $120.3 million QoQ) means the loan-to-deposit ratio is climbing closer to 96.4%. At some point, the bank will need to resume core deposit gathering to fund future commercial loan demand.
Other KPIs
Accelerating. Up from $14.35 in Q1. Demonstrates exceptional internal capital generation capable of fully absorbing the $15.4 million spent repurchasing 732,183 shares during the quarter, while still growing per-share value by 11.7% annualized.
Up significantly from 14.20% in the linked quarter. This top-decile performance metric underscores that the Bancorp Financial acquisition (Evergreen) integration is fully complete and operating at peak financial efficiency.
Improving. Down 68 basis points from 52.40% in Q1. Noninterest expenses grew slightly (+2.08% to $51.3 million), driven by deferred compensation and $172k in isolated litigation expenses, but were outpaced by the 2.69% jump in net interest income.
Guidance
CEO Jim Eccher explicitly stated the bank is positioned to 'deliver even better results to our stockholders over the last half of the year.' This bullish posture aligns with the NPL cleanup but sets a very high bar given Q2's already exceptional 1.65% ROAA.
In Q1, management guided to 3-4% full-year expense growth. Q2 Noninterest expense came in at $51.25M, a 2.08% sequential increase from Q1. The bank is currently tracking well within this guided limit, showcasing tight operational discipline despite inflationary pressures.
Key Questions
NIM Ceiling
With the tax-equivalent NIM hitting 5.23%—well above prior guidance of normalizing toward 5%—how much further can the runoff of legacy Evergreen time deposits push this margin, and at what point does it plateau?
Powersport Credit Normalization
You cited Powersport charge-offs as a driver for the Q2 provision. Have we reached peak loss rates in this specific portfolio segment, or should we expect these elevated levels to persist throughout the back half of 2026?
Loan-to-Deposit Friction
Total deposits have shrunk for three consecutive quarters. As you finish optimizing the liability side, when do you pivot back to active deposit gathering to support the stated goal of low-to-mid single-digit organic loan growth?
Chicago Office CRE Exposure
Following the Q2 charge-offs on the downtown Chicago office credit, what is the remaining total dollar exposure to downtown/urban office real estate, and what percentage of that book is currently classified or criticized?