S&T Bancorp (STBA) Q3 2026 earnings review
S&T Bancorp widens its lending spread, but business loans shrink
S&T Bancorp, a community bank in Pennsylvania and Ohio, widened its lending spread while its loan book stood still. Total revenue grew 5% from a year ago to $108 million, and earnings per share jumped 20% on lower overhead and past share buybacks. Chief executive Chris McComish highlighted the record profit, which beat the bank's own lending margin plan even as business loans contracted.
| Total revenue | $107.8M +4.7% from a year ago |
|---|---|
| Diluted earnings per share | $1.09 +19.8% from a year ago |
| Net interest margin, taxable equivalent | 4.06% up 0.07 percentage points from Q2 |
| Total portfolio loans | $8.05B -$4.4M from last quarter |
⚖️ Verdict: ⚪ Neutral
The story is unchanged because wider loan spreads offset a stall in lending and a complete pause in share buybacks. The good news is that net interest margin topped 4% as older loans repriced higher. One caution: total loans shrank by $4 million in the third quarter, leaving S&T far behind its second-half lending plan as deposit costs started ticking up.
The question now is whether newly hired commercial bankers can restart loan growth before rising deposit costs cap the lending margin. If business borrowing rebounds, interest income can keep climbing; if credit lines stay slack and deposit rates rise, revenue growth will slow toward zero. Fourth-quarter loan balances and the quarterly filing's credit tables will tell.
🐂 Bull Case
Loan Spreads Pushed Interest Margin Past 4%
S&T Bancorp, a community bank in Pennsylvania and Ohio, earns most of its revenue from the spread between what it charges borrowers and what it pays depositors. Management had planned for net interest margin (that lending spread as a share of earning assets, adjusted for tax-free income) to stay flat in the high-3.90% range.
Instead, the bank expanded its net interest margin by 0.07 percentage points from last quarter to 4.06%. Net interest income rose $2.8 million to $93.1 million, which the release said was "primarily due to higher yields on interest-earning assets and one additional day in the third quarter compared to the second quarter". Average loan yields climbed 0.06 points to 5.95%, while bond yields jumped 0.25 points to 4.08% after last quarter's bond portfolio reshuffle.
This matters because the wider margin carried revenue growth while the loan book stood still. S&T has now met or beaten its own margin outlook for seven straight quarters.
What to watch: fourth-quarter net interest margin on the upcoming conference call. A reading that holds above 4.00% would show that older loans repricing at higher rates can offset rising deposit competition.
Lower Overhead Lifted Pre-Tax Operating Margin
Chief executive Chris McComish said the bank delivered "record revenue and higher core profitability" during the third quarter. Pre-tax operating profit rose 10.4% from a year ago to $48.7 million, and pre-tax operating margin expanded by 2.7 percentage points to 45.2% of total revenue.
Tighter overhead spending drove that margin gain. Noninterest expense (salaries, branches, technology and other operating costs) fell $1.0 million from last quarter to $57.6 million, dropping by 1.3 percentage points of revenue from a year ago to 53.5%. The bank said the quarterly drop was "primarily due to normal fluctuations across several expense categories and timing-related items", as marketing and other overhead fell by 1.0 percentage point of revenue from the second quarter.
What to watch: fourth-quarter noninterest expense against the $58 million quarterly target. A number above $59 million would show that third-quarter savings were only delayed bills returning at year-end.
Past Buybacks Still Carry Per-Share Profit
S&T spent $133.4 million over the prior three quarters to buy back 8.3% of its shares, and the board approved a new $100 million buyback plan in July. That lower share count turned a 10.4% rise in third-quarter net income into a 19.8% jump in diluted earnings per share, which reached $1.09.
However, the bank paused its buying this summer. "No share repurchases occurred in the third quarter of 2026," S&T said, after finance chief Mark Kochvar warned last quarter that the bank would step back. Because the average diluted share count fell only 1.3% from the second quarter, future per-share profit growth must rely on operating earnings rather than share count reductions.
What to watch: fourth-quarter share repurchases under the $100 million authorization. Another quarter with zero buybacks would confirm that management is hoarding capital for a bank acquisition instead.
🐻 Bear Case
Business Loans Shrank Despite Commercial Hiring
"Our results reflect another strong quarter, highlighted by record earnings per share, record revenue and higher core profitability," chief executive Chris McComish said. Despite that upbeat summary and a 20% expansion of the commercial banking team earlier this year, S&T's loan book shrank.
- Total portfolio loans: $8.05 billion, down $4.4 million from last quarter versus $46.6 million added a year ago
- Commercial and industrial loans (working-capital credit lines for businesses): down $51.1 million from last quarter
- Commercial construction loans: down $25.6 million from last quarter
- Commercial real estate loans (mortgages on business properties): up $64.8 million from last quarter, but still down 2.8% from a year ago
The company said total loans fell "due to lower line utilization and originations". Last quarter, management set a plan for 4% to 6% annualized loan growth in the second half. By our math, S&T now needs $206 million of new loans in the fourth quarter to hit the middle of that plan.
What to watch: fourth-quarter commercial and industrial loan balances. Another drop would show that new commercial bankers are not yet overcoming weak borrower demand.
Deposit Costs Ticked Up as Free Balances Left
For four quarters, falling deposit rates helped S&T widen its lending margin as higher-rate certificates of deposit (CDs, time deposits locked in for set terms) matured. Finance chief Mark Kochvar warned last quarter that this repricing benefit had only a couple of months left to run.
The turn arrived in the third quarter. Total deposits slipped by $22.2 million to $8.06 billion as customers pulled $32.6 million out of noninterest-bearing checking accounts and added $15.0 million to higher-cost CDs. That mix shift pushed the average cost of interest-bearing deposits up 0.03 percentage points from last quarter to 2.46%, the first quarterly increase in over a year.
What to watch: the average cost of interest-bearing deposits in the fourth quarter. A second straight quarterly rise would squeeze net interest margin if loan yields flatten out.
Loan Write-Offs Doubled Even as Bad Loans Fell
S&T's credit numbers moved in opposite directions during the third quarter. Nonperforming assets (overdue loans no longer accruing interest plus foreclosed property) fell by $3.7 million from June to $36.5 million, or 0.45% of total loans and foreclosed property, as problem business loans were resolved.
Resolving those accounts carried a cost. Net loan charge-offs (debts the bank wrote off as uncollectible, minus recoveries) doubled from $1.0 million in the second quarter to $2.1 million, or 0.10% of average loans on an annualized basis. Commercial real estate and business loans accounted for $1.9 million of those write-offs, forcing S&T to raise its quarterly provision for credit losses to $1.4 million.
What to watch: fourth-quarter net charge-offs and credit loss provisions. A jump in write-offs toward last fourth quarter's $11.0 million level would cut directly into net income.
Risks this quarter didn't answer
Two standing concerns from the first half of the year were not resolved by the third-quarter earnings release.
- Early-stage problem loans: special-mention loans (watch-list credits showing early stress) doubled in the first half to $142.9 million, and that table only appears in the quarterly Form 10-Q filing.
- Federal debit-card fee cap: crossing $10 billion in assets at year-end triggers a roughly $6 million annual fee cut under the Durbin amendment, and total assets dipped by $54.5 million this quarter to $9.89 billion.
💲 Other KPIs
Total borrowings (short-term and long-term wholesale debt from the Federal Home Loan Bank and subordinated notes) dropped by $60.0 million, or 21.8%, from last quarter. After borrowing an extra $125.0 million in the second quarter to pay off all brokered deposits and fund share buybacks, S&T used third-quarter cash and bond maturities to pay down short-term debt.
Fee income slipped by $0.2 million from the second quarter's $14.9 million, which had included a $0.2 million net gain from a Visa stock exchange and bond sales, but rose 6.5% from $13.8 million a year ago. Wealth management and trust fees climbed 19.5% from last year to $3.7 million, keeping fee revenue above management's $14.0 million quarterly target.
Tangible book value per share (shareholders' equity minus goodwill and intangible assets, divided by share count) rose $0.10 from last quarter and 2.1% from $28.69 a year ago. Because the bank paused share buybacks in the third quarter, tangible common equity rose from 10.75% of tangible assets in June to 10.85%.
❓ Key Questions
Did watch-list business loans stop rising in the third quarter?
Special-mention loans doubled in the first half of 2026 to $142.9 million after seven commercial relationships were downgraded. Because the earnings release only reports nonaccrual loans, investors need the quarterly filing's risk-rating table to see if early credit stress is still building.
Why did business credit lines shrink after hiring more bankers?
S&T expanded its commercial banking team by about 20% in the first half of the year, yet commercial and industrial loans dropped by $51.1 million this quarter. Management needs to explain how much came from customers paying down credit lines versus lost deals.
Does management still expect mid-single-digit second-half loan growth?
Portfolio loans shrank by $4.4 million in the third quarter against a second-half plan for 4% to 6% annualized growth. Hitting the middle of that plan would require $206 million of net new loans in the fourth quarter, a pace S&T has not reached.
Will S&T keep assets under $10 billion at year-end?
Total assets fell by $54.5 million to $9.89 billion at September 30. Staying below $10 billion on December 31 would delay the federal cap on debit-card fees by a full year, saving the bank roughly $6 million in late 2027 and early 2028.