Heritage Financial heads into its third-quarter report with an awkward split between what management is saying and what the stock is doing. On the last call, the bank described surging loan production, rising new-loan yields and a margin still moving up. Since then, shares have fallen about 10% while the S&P 500 gained roughly 5%. The October 22 release, due before the open, should help show which side has it right, and the answer probably depends less on loan growth than on deposit pricing.

The Street is not asking for much. Consensus calls for earnings of $0.57 a share, matching last quarter and up just 1.8% from a year ago. Revenue is pegged at $86.2 million, about 1.9% below the year-ago figure. The prior quarter's reported revenue of $107.0 million sits well above that estimate, so sequential comparisons look distorted and the year-over-year view is the cleaner yardstick. Either way, this is a flat-to-modest quarter on paper. The bar is set low, but the quarter will be judged on quality more than on the headline number.

The central issue is the margin. Net interest margin rose to 3.99% last quarter. Management said the underlying gain was closer to 8 basis points once a prior-quarter interest recovery on non-accrual loans is stripped out. The repricing runway still looks real. New loans were booked around 6.40% against a portfolio average near 5.72%, and new commercial loans came in at 6.44%, up from 6.08% a quarter earlier. The complication is that management said deposit costs had bottomed, with interest-bearing deposits at a spot rate of 1.64% and certificate-of-deposit competition picking up. That reversed earlier calls, which had pointed to further drift lower. Management still guided to margin expansion, but at a more moderate pace.

The narrative would be validated by a margin at or modestly above 4% alongside only gradual deposit-cost creep. Deposit balances matter here too. They fell $210 million last quarter on seasonality, a non-operating outflow and runoff of brokered CDs, forcing some FHLB borrowing. Stabilizing balances would ease funding pressure, while a flat or lower margin would suggest the deposit side is moving faster than management implied.

Loan growth is the second test. Management cut its outlook to mid-single-digit annualized growth from the upper-single-digit framing it offered late last year, because payoffs rose to $152 million from $119 million. Some of those payoffs came from customers selling their businesses. A commercial pipeline near a record $628 million argues that production should hold up. Growth in the guided range with payoffs cooling would support the story, but another payoff surge would raise questions about the revised target.

Expenses and integration round out the picture. Management reaffirmed third-quarter expenses of $64 million to $65 million, falling to $56 million to $57 million in the fourth quarter after the late-September Kitsap and Olympic system conversion. Confirmation that the conversion was completed cleanly matters more than this quarter's cost line, because it underpins the step-down in expenses. Credit has been a strength, with substandard loans falling to 1.8% and charge-offs negligible. Any sign of stress in commercial and industrial borrowers exposed to tariffs or labor costs would stand out.

Sentiment has soured, moving to 14.2% bearish from 3.4% bearish ahead of last quarter. At $27.09, the stock sits just above its post-earnings low of $26.97 and slightly below its 200-day moving average of $27.52. That leaves the market positioned for disappointment. If the margin holds near 4% despite costlier deposits and the conversion stays on schedule, the improving story remains intact. If funding costs erode the repricing gains faster than expected, the recent selloff will look justified.