The industrial distributor beat estimates with earnings of 35 cents a share and an operating margin of 21.5%. The stock opened 7.6% lower and was up more than 1% by early afternoon.
Fastenal's third quarter showed why winning big accounts helps sales more than it helps gross margins.
The industrial and construction supplier reported net sales of $2.46 billion, up 15.5% from a year earlier and slightly above forecasts of $2.44 billion. Daily sales also rose 15.5%. Diluted earnings were 35 cents a share, up from 29 cents and above estimates of about 34 cents.
The stock opened at $47.51, down about 7.6% from Tuesday's close, and touched $47.30. By about 1:45 p.m. Eastern it had reversed to $52.16, up about 1.4%. Fastenal did not comment on the move.
What drove the growth
The company attributed the sales gain "primarily" to "share gains with larger customers, pricing actions, and broad-based demand across core end markets." Demand was not limited to a single sector, and pricing contributed alongside volume.
Operating leverage was strong. Operating margin rose to 21.5% from 20.7%, as expenses grew more slowly than sales. Operating cash flow was $421.6 million.
The margin trade-off
Gross margin moved the other way, falling to 44.8% from 45.3%. Fastenal said customer mix, the growing weight of large accounts, reduced gross margin by about 50 basis points. Price relative to cost cut it by about 30 basis points, meaning product costs rose faster than Fastenal passed them on. About 20 basis points of benefit came from favorable timing, which may not repeat.
That breakdown lays out the tension in the business model. Large accounts bring volume and allow Fastenal to spread fixed costs, which lifted operating margin. They also come with lower gross margins, as the mix effect shows, and the company is absorbing some cost inflation rather than passing it all through.
Market implications
The bullish case is that 15.5% growth with expanding operating margin shows Fastenal taking share across end markets, a positive signal for industrial activity. The bearish case is that gross margin is under pressure from mix and costs at once, and the 20 basis points of favorable timing will not help next quarter.
What to watch
Fastenal's monthly sales reports, which will show whether growth near 15% continues into October, and the price-to-cost line, which will show whether Fastenal can pass through rising product costs.