1st Source Corporation (SRCE) Income Statement

The sequential trajectory remains constructive — NII rose from $90.1 million in Q1 2026 to $95.6 million in Q3 2026 — but the year-over-year comparison has roughly halved from the 17.6% prints recorded in late 2025, which appears consistent with the repricing of fixed-rate specialty lease assets originated in earlier quarters. Given that average deposits grew 3.28% quarter-over-quarter against 1.71% loan growth in Q2 2026, incremental funding appears to be accumulating faster than it is being deployed, which may place a ceiling on volume-driven NII gains absent stronger equipment finance demand. Investors should watch whether the growth rate stabilizes near mid-single digits or continues to slide toward the cost-of-funds inflection point.

A 1.0% reported margin is meaningfully below the 2.5-3.5% range typical of Indiana-focused peers such as Lakeland Financial or Horizon Bancorp, which suggests either a different calculation convention or a substantial drag from non-earning lease assets and lower-yielding government securities held against the specialty book. The gradual 20 basis point improvement over eight quarters, however, implies the mix is slowly rotating toward higher-yielding aircraft and vocational vehicle paper funded by a stable core deposit franchise. If the reported NIM is genuinely comparable to peers, the spread economics would look severely impaired; the more plausible reading is that the metric captures the bank's unusual leasing-heavy balance sheet, which warrants verification against the margin table.

The steady quarterly grind from 57.2% to 45.9% has been almost entirely linear, with no visible step-changes that would suggest a restructuring program or branch consolidation — consistent with a fixed-cost base held roughly flat near the low-$90 million range while revenue climbed from $141.6 million to $158.0 million. Analysts should note a reconciliation gap: the stated efficiency ratio implies non-interest expense of roughly $72.5 million, whereas total revenue less provision less operating income implies approximately $93 million, indicating the ratio is calculated on an adjusted or tax-equivalent basis that deserves disclosure before peer benchmarking. Either way, the trajectory provides genuine operating leverage into a period of slowing NII growth, making the durability of fee income the swing factor for 2027 margin retention.

The pattern across the ten quarters — spikes in early 2025 ($3.3 million) and early 2026 ($7.3 million) followed by near-zero quarters — looks more like CECL true-up timing around annual forecasting cycles than a genuine credit deterioration event, since net income did not materially compress in those quarters. For a lender with concentrated exposure to mobile collateral such as aircraft, step vans, and funeral cars, benign provisioning implies the remarketing markets for used specialized equipment remain liquid enough to support recovery estimates. That said, a $7.3 million provision followed by three quarters of minimal builds suggests management is effectively forecasting flat losses, and any softening in used aircraft or heavy truck pricing would reverse this dynamic quickly given the portfolio's dependence on residual values rather than traditional real-estate collateral.

The fee line is unusually volatile quarter to quarter — $17.5 million in Q4 2025 against $25.0 million in Q2 2026 — which fits the profile of lumpy gains on sale from equipment lease originations layered on top of steadier trust and insurance fees, so investors should resist extrapolating any single quarter. The declining fee mix appears to be a relative effect rather than an absolute one, since dollar fee income has risen from the $18-23 million range to the mid-$24 million area; this dilution matters because wealth management fees, which are typically billed as a percentage of assets under management, would ordinarily cushion margin compression if NII growth stalls. Additionally, the reported total revenue line of $158.0 million exceeds the sum of net interest income and non-interest income ($120.3 million), implying unallocated or non-recurring revenue components whose composition and repeatability warrant closer examination.