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Check out our Dark Pool Levels

FAST
Fastenal Co
stock NASDAQ

At Close
Jan 8, 2026 3:59:59 PM EST
41.80USD+2.930%(+1.19)8,021,320
39.71Bid   43.75Ask   4.04Spread
Pre-market
Jan 8, 2026 9:26:30 AM EST
40.54USD-0.172%(-0.07)4,332
After-hours
Jan 8, 2026 4:20:30 PM EST
42.20USD+0.957%(+0.40)47,371
OverviewOption ChainMax PainOptionsPrice & VolumeSplitsDividendsHistoricalExchange VolumeDark Pool LevelsDark Pool PrintsExchangesShort VolumeShort Interest - DailyShort InterestBorrow Fee (CTB)Failure to Deliver (FTD)Short InterestTrendsNewsMore
for Daily Short Interest
FAST Short Interest (SI) Latest - Official
As of 2025-12-15, there were 31,452,298 shares short with a short interest of 2.75%.

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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