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FAST
Fastenal Co
stock NASDAQ

At Close
Sep 22, 2026 3:59:59 PM EDT
50.08USD+0.866%(+0.43)6,619,677
50.07Bid   52.94Ask   2.87Spread
Pre-market
Sep 21, 2026 8:07:30 AM EDT
49.40USD-0.504%(-0.25)0
After-hours
Sep 18, 2026 4:12:30 PM EDT
48.62USD-0.717%(-0.35)0
OverviewOption ChainMax PainOptionsPrice & VolumeSplitsDividendsHistoricalExchange VolumeDark Pool LevelsDark Pool PrintsExchangesShort VolumeShort Interest - DailyShort InterestBorrow Fee (CTB)Failure to Deliver (FTD)Short Interest - DailyTrendsNewsMore
for Daily Short Interest
FAST Short Interest (SI) Latest - Official
As of 2026-08-31, there were 34,649,070 shares short with a short interest of 3.03%.

FAST Short Interest - Official
 

FAST Short Position Change - Official
 
FAST Short Interest - Official chartexchange.com
Historical data is split-adjusted.
1) Data from Finra. Finra publishes an updated file every two weeks.
2) Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.



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