Auburn National Bancorporation just printed the cleanest operating quarter it has produced in years, and the second quarter did the lifting. Net earnings of $2.3 million translated to $0.66 per share, up 27% from a year ago, with the lift coming from a 15-basis-point expansion in the tax-equivalent net interest margin to 3.33% - the highest in at least five years - rather than from balance-sheet growth or a credit release. Net interest income (tax-equivalent) of $8.0 million rose 8% on a 3% increase in average earning assets, the kind of revenue growth that the regional bank group has been trying to manufacture for two years. Return on average assets reached 0.90% (versus 0.74% a year ago) and return on average equity reached 9.74% (versus 9.00%), the most efficient quarter of the modern era for a one-bank holding company whose loan book is concentrated in East Alabama real estate. The credit story remains almost impossibly clean for a community bank: nonperforming assets of $0.1 million, or 0.01% of total assets, with the only meaningful first-quarter charge-off already run through the income statement. Capital is excessive by any standard: a 16.26% common equity tier 1 ratio, a 10.65% tier 1 leverage ratio, and a 17.24% total risk-based capital ratio, all well above the well-capitalized thresholds. The single quarter's $0.66 of earnings, annualized, would put the stock at roughly 10x forward earnings and just under book value, with a 4.1% dividend yield. The market is paying for a slow-growth Alabama community bank with concentrated real estate exposure, but it is not paying up for what the second quarter showed - and the open question is whether the next two quarters repeat it or whether this was the easy half of a one-rate-cut cycle.