Bank of Marin Bancorp heads into its third-quarter report with an awkward split between what the business has been doing and what the stock has been doing. Since the last report, management has described a bank whose earnings engine is clearly mending. The margin is widening, credit cleanup is largely done and capital is rebuilding. Yet the shares have fallen 11.4% while the S&P 500 gained 2.5%. The report, due before the open on October 26, has to show which story deserves more weight.

The Street is not asking for much. Consensus calls for earnings of $0.57 a share, a penny below the $0.58 posted last quarter but 21.3% above the $0.47 earned a year ago. The year-over-year jump mostly reflects the payoff from the balance-sheet restructuring completed late last year, which management framed as worth roughly 25 basis points of margin and about $0.40 of annual EPS. The revenue consensus of $35.1 million implies a 16% decline from a year ago and sits well below last quarter's $45.5 million. That is hard to reconcile with a widening margin, so treat the revenue comparison with caution and focus on net interest income and the margin itself. The bank does not give formal guidance, but the June commentary sets a useful marker. Management put the normalized tax-equivalent margin at about 3.44% to 3.45%, against 3.38% for the full second quarter. It also pointed to roughly 20 basis points of loan-yield tailwind over the next year and said second-half expenses should run near the first-half pace. Taken together, that points to further operating leverage, which makes a flat-to-lower EPS estimate look conservative.

The margin therefore carries the first test. A third-quarter figure in the mid-3.40s would confirm that the 14-basis-point jump last quarter was not a one-off. It would also suggest that new loans booked near 6.5%, against payoffs near 5.9%, are steadily repricing the book. Deposit costs matter too. They fell to 1.28% last quarter, and further easing would add to the case. A margin stuck near 3.38% would suggest that fierce pricing competition is eroding the yield advantage. Rivals are bidding 150 to 175 basis points over benchmarks while Bank of Marin holds to a hurdle above 200.

The second test is the balance sheet, the weak spot in an otherwise strong quarter. Period-end loans slipped to $2.1 billion as payoffs, including a planned $19 million exit from a criticized credit, outran production. Deposits fell $58.2 million, driven largely by one customer's roughly $74 million seasonal outflow. This quarter should show whether the new growth drivers are producing balances. Those include the revived construction lending in San Francisco condo and infill housing, rising unfunded construction commitments, a new East Bay regional manager, a three-person San Francisco team and continued traction in Sacramento. Net loan growth and a rebound in deposits would turn margin progress into earnings growth. Another quarter of shrinkage would raise the question of whether higher yields are coming at the cost of volume.

Credit and capital round out the checklist. Non-accruals ended at 0.40% of loans, and the bank booked a small provision reversal. Any new trouble, perhaps from the softness management flagged in the North Bay wine industry, would undercut the idea that the cleanup is finished. Any update on regulator permission for dividends, which management said currently stands in the way of buybacks, would also matter given the roughly $24 million still authorized.

Sentiment has soured sharply, moving from close to neutral before the last report to clearly bearish now. The stock trades at $26.41, just below its 200-day moving average and closer to the bottom of its post-earnings range of $25.45 to $30.92 than the top. That reflects skepticism, not complacency. The core question is whether Bank of Marin can pair its improving margin with renewed loan and deposit growth. If it can, the recovery story holds and today's low bar looks easy to clear. If balances keep shrinking, investors may keep discounting the profitability gains.