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Fastenal (FAST) Short Interest Ratio & Short Volume

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$43.30 -0.87 (-1.97%)
Closing price 04:00 PM Eastern
Extended Trading
$43.32 +0.02 (+0.06%)
As of 07:46 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Fastenal Short Interest Overview

As of April 30, 2026, Fastenal (FAST) had a short interest of 24.52 million shares sold short, representing 2.14% of the public float. This marks a 1.12% increase in short interest since the prior report. The short interest ratio (days to cover) is 4.0, meaning it would take 4.0 days of the average trading volume of 7.34 million shares to cover all short positions.

Current Short Interest
24,523,768 shares
Previous Short Interest
24,252,255 shares
Change Vs. Previous Month
1.12%
Dollar Volume Sold Short
$1.10 billion
Short Interest Ratio
4.0 Days to Cover
Last Record Date
April 30, 2026
Outstanding Shares
1,148,040,000 shares
Short Percent of Float
2.14%
Today's Trading Volume
9,107,841 shares
Average Trading Volume
7,341,703 shares
Today's Volume Vs. Average
124%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

FAST Short Interest Over Time

FAST Days to Cover Over Time

FAST Percentage of Float Shorted Over Time

Fastenal Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
4/30/202624,523,768 shares $1.10 billion +1.1%2.1%3.97 $44.93
4/15/202624,252,255 shares $1.08 billion -11.9%2.1%2.86 $44.40
3/31/202627,514,034 shares $1.28 billion -11.6%2.4%3.28 $46.40
3/13/202631,136,708 shares $1.42 billion -2.5%2.7%3.95 $45.46
2/27/202631,926,847 shares $1.47 billion -3.7%2.8%4.96 $46.04
2/13/202633,154,548 shares $1.54 billion -4.4%2.9%3.29 $46.41
1/30/202634,665,326 shares $1.50 billion +10.0%3.0%3.36 $43.36
1/15/202631,511,673 shares $1.37 billion +0.2%2.8%3.68 $43.53
12/31/202531,434,778 shares $1.26 billion -0.1%2.7%4.53 $40.13
12/15/202531,452,298 shares $1.34 billion +6.9%2.7%4.54 $42.58
11/28/202529,427,595 shares $1.19 billion +6.3%2.6%4.35 $40.42
11/14/202527,692,749 shares $1.12 billion +5.4%2.4%4.2 $40.45
10/31/202526,285,149 shares $1.08 billion +10.5%2.3%4.55 $41.15
10/15/202523,780,000 shares $1.00 billion -8.0%2.1%3.9 $42.24
9/30/202525,850,000 shares $1.27 billion +6.6%N/A4.2 $49.04
9/15/202524,260,000 shares $1.16 billion -3.8%N/A3.8 $47.76
8/31/202525,220,000 shares $1.25 billion +2.1%2.2%4.1 $49.66
8/15/202524,710,000 shares $1.21 billion -2.9%N/A4.1 $48.88
7/31/202525,450,000 shares $1.17 billion +0.5%2.2%4.3 $46.13
7/15/202525,330,000 shares $1.14 billion -9.1%N/A4.1 $45.13
6/30/202527,850,000 shares $1.17 billion -6.5%2.4%4.2 $42.00
6/15/202529,770,000 shares $1.26 billion +6.3%2.6%4.5 $42.17
5/31/202528,010,000 shares $1.16 billion -1.4%4.9%4 $41.31
5/15/202528,410,000 shares $1.16 billion +93.5%5.0%3.8 $40.94
4/30/202514,680,000 shares $1.19 billion +1.6%2.6%4 $80.97
4/15/202514,450,000 shares $1.18 billion +1.6%2.5%4 $81.65
3/31/202514,220,000 shares $1.10 billion +3.6%2.5%4 $77.55
3/15/202513,730,000 shares $1.03 billion +0.6%2.4%4.2 $75.26
2/28/202513,650,000 shares $1.03 billion +1.0%2.4%4.4 $75.73
2/15/202513,520,000 shares $1.01 billion +2.7%2.4%4.8 $74.78
1/31/202513,160,000 shares $963.84 million +7.5%2.3%4.6 $73.24
1/15/202512,240,000 shares $909.06 million +1.6%2.1%4.3 $74.27
12/31/202412,050,000 shares $866.52 million +6.5%2.1%4.3 $71.91
12/15/202411,310,000 shares $887.50 million -6.0%2.0%4.1 $78.47
11/30/202412,030,000 shares $1.01 billion -5.9%2.1%4.6 $83.56
11/15/202412,780,000 shares $1.05 billion -3.7%2.2%4.8 $81.85
10/31/202413,270,000 shares $1.04 billion -4.3%2.3%5.2 $78.18
10/15/202413,860,000 shares $1.07 billion +4.8%2.4%5.4 $76.91
9/30/202413,220,000 shares $944.17 million -9.9%2.3%5.1 $71.42
9/15/202414,670,000 shares $1.02 billion +3.8%2.6%5.4 $69.82
8/31/202414,130,000 shares $964.80 million +6.1%2.5%5 $68.28
8/15/202413,320,000 shares $887.51 million -4.1%2.3%4.3 $66.63
7/31/202413,890,000 shares $982.72 million -13.0%2.4%4.3 $70.75
7/15/202415,960,000 shares $1.08 billion +11.2%2.8%4.8 $67.83
6/30/202414,350,000 shares $901.75 million -21.6%2.5%4.1 $62.84
6/15/202418,300,000 shares $1.15 billion +35.9%3.2%5.2 $63.05
5/31/202413,470,000 shares $888.75 million +5.0%2.4%3.7 $65.98
5/15/202412,830,000 shares $859.35 million -16.3%2.3%3.6 $66.98
4/30/202415,320,000 shares $1.04 billion -10.6%2.7%4.2 $67.94
4/15/202417,140,000 shares $1.19 billion -8.6%3.0%4.4 $69.39
3/31/202418,750,000 shares $1.45 billion +2.2%3.3%4.8 $77.14
3/15/202418,350,000 shares $1.38 billion -1.6%3.2%4.8 $75.03
2/29/202418,640,000 shares $1.36 billion -1.6%3.3%4.7 $73.01
2/15/202418,950,000 shares $1.33 billion -3.3%3.3%5 $70.15
1/31/202419,600,000 shares $1.34 billion +7.3%3.4%5.3 $68.23
1/15/202418,260,000 shares $1.16 billion -5.3%3.2%5.1 $63.52
12/31/202319,290,000 shares $1.25 billion +3.1%3.4%5.4 $64.77
12/15/202318,710,000 shares $1.20 billion +5.0%3.3%5.3 $64.16
11/30/202317,820,000 shares $1.07 billion +6.3%3.1%5.3 $59.97
11/15/202316,760,000 shares $1.01 billion +7.8%2.9%5.1 $60.11
10/31/202315,550,000 shares $907.19 million +2.5%2.7%4.9 $58.34
10/15/202315,170,000 shares $912.02 million -1.1%2.7%4.9 $60.12
9/30/202315,340,000 shares $838.18 million +1.2%2.7%5.1 $54.64
9/15/202315,160,000 shares $837.14 million -5.4%2.7%5.2 $55.22
8/31/202316,020,000 shares $922.43 million +3.4%2.8%5.2 $57.58
8/15/202315,490,000 shares $891.45 million +9.0%2.7%4.8 $57.55
7/31/202314,210,000 shares $832.85 million -8.0%2.5%4.4 $58.61
7/15/202315,450,000 shares $888.07 million +5.5%2.7%4.8 $57.48
6/30/202314,640,000 shares $863.61 million +0.8%2.6%4.6 $58.99
6/15/202314,520,000 shares $816.60 million +0.5%2.6%4.7 $56.24
5/31/202314,450,000 shares $778.13 million +1.9%2.5%4.5 $53.85
5/15/202314,180,000 shares $768.84 million No Change2.5%4.6 $54.22
4/30/202314,180,000 shares $763.45 million +6.1%2.5%4.5 $53.84
4/15/202313,370,000 shares $712.22 million -3.7%2.4%4 $53.27
3/31/202313,890,000 shares $749.23 million +4.0%2.4%4.2 $53.94
3/15/202313,360,000 shares $688.84 million -9.2%2.4%4 $51.56
2/28/202314,720,000 shares $758.96 million +5.8%2.6%4.4 $51.56
2/15/202313,910,000 shares $738.34 million -8.7%2.4%4.2 $53.08
1/31/202315,230,000 shares $769.88 million +5.6%2.7%4.5 $50.55
1/15/202314,420,000 shares $703.98 million +2.9%2.5%4.1 $48.82
12/30/202214,020,000 shares $663.43 million +6.1%2.5%4 $47.32
12/15/202213,220,000 shares $634.16 million +20.0%2.3%3.6 $47.97
11/30/202211,020,000 shares $567.64 million -8.6%1.9%3 $51.51
11/15/202212,060,000 shares $622.66 million -3.8%2.1%3.4 $51.63
10/31/202212,540,000 shares $606.06 million +4.0%2.2%3.6 $48.33
10/15/202212,060,000 shares $529.07 million -1.2%2.1%3.5 $43.87
9/30/202212,200,000 shares $561.69 million -5.9%2.1%3.6 $46.04
9/15/202212,960,000 shares $612.10 million -1.5%2.3%4 $47.23
8/31/202213,160,000 shares $662.34 million -1.6%2.3%4.2 $50.33
8/15/202213,380,000 shares $750.75 million -7.4%2.3%4.3 $56.11
7/31/202214,450,000 shares $742.15 million +21.9%2.5%4.4 $51.36
7/15/202211,850,000 shares $569.27 million -17.8%2.1%3.5 $48.04
6/30/202214,410,000 shares $719.35 million +10.9%2.5%4.3 $49.92
6/15/202213,000,000 shares $644.93 million -0.8%2.3%3.9 $49.61
5/31/202213,100,000 shares $701.64 million +2.6%2.3%3.9 $53.56
5/15/202212,770,000 shares $672.85 million +21.4%2.2%3.5 $52.69
4/30/202210,520,000 shares $581.86 million -13.5%1.8%2.9 $55.31
4/15/202212,160,000 shares $681.08 million -0.2%2.1%3.4 $56.01
3/31/202212,180,000 shares $723.49 million +0.6%2.1%3.5 $59.40
3/15/202212,110,000 shares $675.62 million +12.9%2.1%3.6 $55.79
2/28/202210,730,000 shares $552.17 million -23.6%1.9%3.1 $51.46
2/15/202214,040,000 shares $732.47 million +37.2%2.5%4.4 $52.17
1/31/202210,230,000 shares $579.84 million -8.3%1.8%3.3 $56.68
1/15/202211,150,000 shares $660.08 million -13.3%1.9%3.8 $59.20
12/31/202112,860,000 shares $823.81 million -4.4%2.2%4.6 $64.06
12/15/202113,450,000 shares $856.09 million +23.4%2.4%4.7 $63.65
11/30/202110,900,000 shares $644.95 million -10.9%1.9%3.9 $59.17
11/15/202112,230,000 shares $741.63 million -9.9%2.1%4.5 $60.64
10/29/202113,580,000 shares $775.15 million +0.2%2.4%5.1 $57.08
10/15/202113,560,000 shares $755.83 million +21.0%2.4%5.1 $55.74
9/30/202111,210,000 shares $578.55 million -3.9%2.0%4 $51.61
9/15/202111,660,000 shares $626.84 million -9.8%2.0%4.2 $53.76
8/31/202112,920,000 shares $721.58 million -14.0%2.3%4.5 $55.85
8/13/202115,020,000 shares $830.16 million -2.3%2.6%5.3 $55.27
7/30/202115,370,000 shares $841.81 million -0.8%2.7%5.3 $54.77
7/15/202115,500,000 shares $829.72 million -1.2%2.7%5.2 $53.53
6/30/202115,680,000 shares $815.36 million +1.9%2.7%5 $52.00
6/15/202115,390,000 shares $793.51 million +10.4%2.7%5 $51.56
5/28/202113,940,000 shares $739.38 million -0.4%2.4%4.4 $53.04
5/14/202114,000,000 shares $745.36 million -4.4%2.5%4 $53.24

FAST Short Interest - Frequently Asked Questions

Short interest is the volume of Fastenal shares that have been sold short but have not yet been covered or closed out. As of April 30th, traders have sold 24,523,768 shares of FAST short. 2.14% of Fastenal's shares are currently sold short. Learn More on Fastenal's current short interest.

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. FAST shares currently have a short interest ratio of 4.0. Learn More on Fastenal's short interest ratio.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Fastenal: Tudor Investment Corp ET AL, Millennium Management LLC, Caption Management LLC, Sender Co & Partners Inc., Squarepoint Ops LLC, Verition Fund Management LLC, Walleye Trading LLC, PEAK6 LLC, Barclays PLC, Volterra Technologies LP, Walleye Capital LLC, Jane Street Group LLC, Group One Trading LLC, Simplex Trading LLC, Lido Advisors LLC, Goldman Sachs Group Inc., and BNP Paribas Financial Markets. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 2.14% of Fastenal's floating shares are currently sold short.

Fastenal saw a increase in short interest during the month of April. As of April 30th, there was short interest totaling 24,523,768 shares, an increase of 1.1% from the previous total of 24,252,255 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

2.14% of Fastenal's shares are currently sold short. Here is how the short interest of companies compare to Fastenal: Nordson Corporation (2.20%), Builders FirstSource, Inc. (7.70%), Dover Corporation (2.10%), Graco Inc. (2.53%), W.W. Grainger, Inc. (2.76%), The Home Depot, Inc. (1.11%), Illinois Tool Works Inc. (3.16%), Lowe's Companies, Inc. (2.12%), MSC Industrial Direct Company, Inc. (5.63%), Tecnoglass Inc. (4.40%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($86.09 billion), Invesco QQQ ($39.89 billion), iShares Russell 2000 ETF ($26.13 billion), Western Digital Corporation ($12.66 billion), Salesforce Inc. ($12.29 billion), Sandisk Corporation ($11.87 billion), SPDR S&P Biotech ETF ($9.82 billion), Lumentum Holdings Inc. ($8.51 billion), iShares 20+ Year Treasury Bond ETF ($7.76 billion), and Bloom Energy Corporation ($7.40 billion). View all of the most shorted stocks.

Short selling FAST is an investing strategy that aims to generate trading profit from Fastenal as its price is falling. FAST shares are trading down $0.87 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

A short squeeze for Fastenal occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of FAST, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including FAST, twice per month. The most recent reporting period available is April, 30 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like FAST:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


Related Companies
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This page (NASDAQ:FAST) was last updated on 5/11/2026 by MarketBeat.com Staff.
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