S&T Bancorp: 3 Key Takeaways for Long-Term Investors

S&T Bancorp's third-quarter 2026 earnings call revealed several key takeaways for long-term investors. The regional bank reported record quarterly revenue of nearly $108 million, maintaining profit margins above 4% by prioritizing loan yields over raw lending volume. Rather than lowering interest rates on commercial real estate and business loans, S&T Bancorp slowed lending activity to protect net interest margins, the difference between what a bank earns on loans and pays on deposits.

Management's cautious approach to growth, driven by the need to balance overall profitability and net interest margin against loan volume, resulted in total assets staying below the $10 billion threshold required to trigger the Durbin Amendment. This federal rule caps debit card interchange fee revenue for larger banks, and holding asset growth temporarily below this mark will protect fee income through at least mid-2028.

As a result, S&T Bancorp does not anticipate crossing the $10 billion threshold before year-end, delaying the Durbin impact to mid-2028 at the earliest.

Noninterest-bearing demand deposit accounts, representing zero-cost checking accounts that customers can withdraw funds from at any time, constituted 28% of total deposits. S&T Bancorp eliminated all higher-cost brokered deposits from its balance sheet, lowering overall funding costs and further supporting profitability. The bank's focus on controlling noninterest expenses while expanding core customer relationships in its regional footprint demonstrates its commitment to driving profitable growth and maintaining strong credit discipline.

As the company continues to create long-term value for shareholders, it remains dedicated to investing in its deposit franchise as the primary driver of profitability and growth.