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Fastenal Company (FAST) short interest & options flow

NASDAQ

FAST is a fastener and industrial supply distributor with a $59 billion market cap, and it is drawing notably more short attention this week: short interest has jumped 16.5% in seven days to 38.6 million shares, the largest weekly increase in at least 12 months, putting the short position at 3.4% of the free float. That move is worth pausing on. A 16.5% week-on-week rise is roughly…

Latest pulse23 Jun 2026

FAST put/call ratio plummets to 0.30, lowest in 52 weeks, as bullish options sentiment surges. PCR z-score sits at -4.26, signaling extreme call dominance versus the 20-day mean of 1.10.

$53.21+1.68% 1d+3.42% 1w+4.85% 1mClose: 4 Nov 2026
Cost to borrow
Low
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Availability
High and rising
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Market cap
$61.05B
Next earnings
19 Jan 2027
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Key data as of 5 Nov 2026

ORTEX chart of Fastenal Company (FAST) share price and short interest (% of free float), six months to November 4, 2026

FAST news and analysis

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Trader NoteFAST

Fastenal Shorts Rebuild at the Fastest Pace in a Year

FAST is a fastener and industrial supply distributor with a $59 billion market cap, and it is drawing notably more short attention this week: short interest has jumped 16.5% in seven days to 38.6 million shares, the…

1 min read

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