Fastenal (FAST) delivered the quarter its turnaround in operating leverage had been building toward, even if the top line fell short. Third-quarter earnings of $0.35 per share topped both the $0.34 consensus and the $0.34 Earnings Whisper number by 2.9%, and earnings grew 20.7% year over year. Revenue of $2.463 billion rose 15.5% but missed the $2.49 billion consensus by 1.1%. The miss deserves context. Daily sales growth accelerated for a fourth straight quarter, from roughly 11% in the fourth quarter of 2025 to 12.4%, 14.7%, and now 15.5%. The central tension is that Fastenal is growing faster and converting that growth to profit better than at any point in this cycle, yet the market had priced in even more, and several of the underlying supports are softening.

The quality of the earnings beat is mostly sound. Operating margin expanded 90 basis points to 21.5%, compared with only about 5 basis points of expansion in Q2 and 20 basis points in Q1. Operating income rose a record $90 million year over year. The driver was SG&A, which improved 130 basis points to 23.3% of sales as base pay leveraged on higher productivity and total FTE headcount grew just 0.8%. Gross margin is the softer spot. It fell 40 basis points year over year to 44.8%, with the shift toward larger customers costing about 50 basis points and price/cost another 30. Gross margin did improve from 44.6% in Q2. Management, however, flagged that about 20 basis points of the favorable items, which included tariff refunds, supplier rebates, and sourcing savings, reflected timing. The underlying gross margin recovery is therefore thinner than the sequential improvement suggests.

Beneath the headline, the growth is increasingly driven by share gains rather than price. Contract sales rose 18.8% and now make up 76.5% of revenue, while non-contract sales grew only 7.8%. Customer sites spending $50,000 or more per month rose about 19% to roughly 3,300, and sales through those sites grew about 28%. Heavy manufacturing accelerated to about 20% growth from 18% in Q2, and direct materials grew 18.6%. Management cited data centers among the strongest areas. The macro backdrop has also helped, with the PMI averaging about 55, up from roughly 48 two quarters earlier. Pricing, by contrast, keeps fading as tariff-era increases are lapped. Its contribution to growth fell to about 2.4% from 2.9% in Q2 and 3.5% in Q1. Volume and wallet share now carry the story.

Not every leading indicator improved. Contract-count growth slowed to 6.4% from above 7% in Q2 and about 8% in Q1. Digital Footprint slipped to 61.4% of sales, and its full-year target had already been trimmed in Q2. On FMI device signings, the sources diverge. Daily signings improved to about 117 from 109 in Q2, and the call characterized the 27,000-29,000 weighted-device goal as reiterated. The press release, however, identifies 28,000-30,000 as the prior goal, which means the target effectively moved lower. Cash flow conversion rebounded to 105% of net income from 70% in Q2. Still, receivables grew 19.9%, faster than sales, because larger customers carry longer payment terms, and free cash flow equaled about 87% of net income. Management also flagged fuel volatility as a possible Q4 price/cost risk. This was new CEO Jeff Watts' first call, and his tone was constructive without raising formal targets.

Investor sentiment had already cooled substantially going into the report. Earnings Whispers sentiment fell from 0.35 after the July release to -0.04, slipping from clearly positive to slightly negative. That shift came even as the stock gained 10.4% from its post-July opening price to $51.43. Shares sit about 10.6% above the 200-day moving average and only 2.8% below the $52.92 52-week high set on August 11, near the top of an inter-earnings range that bottomed at $44.06 in July. Most Earnings Whispers trend signals remain positive, though sequential growth reads only neutral. The combination of fading enthusiasm and an elevated price meant expectations were demanding, and a revenue miss leaves little room for error.

The bottom line is that Fastenal's fundamentals improved meaningfully this quarter. Sales growth accelerated again, operating margin expansion finally showed up in size, and large-account share gains are doing the heavy lifting. Bears still have legitimate ammunition: a revenue shortfall, a shrinking pricing tailwind, non-recurring gross margin help, slowing contract signings, and a stock already trading near its highs. The next test is whether volume-driven leverage can hold margins once the timing benefits roll off and pricing contributes even less.