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Costco Wholesale (COST) Short Interest Ratio & Short Volume

Costco Wholesale logo
$941.34 -0.24 (-0.03%)
Closing price 04:00 PM Eastern
Extended Trading
$940.88 -0.47 (-0.05%)
As of 07:45 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 Polygon.io. Learn more.
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Costco Wholesale Short Interest Data

Costco Wholesale (COST) has a short interest of 5.57 million shares, representing 1.26% of the float (the number of shares available for trading by the public). This marks a 14.61% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.6, indicating that it would take 2.6 days of the average trading volume of 2.23 million shares to cover all short positions.

Current Short Interest
5,570,000 shares
Previous Short Interest
4,860,000 shares
Change Vs. Previous Month
+14.61%
Dollar Volume Sold Short
$5.23 billion
Short Interest Ratio
2.6 Days to Cover
Last Record Date
July 31, 2025
Outstanding Shares
443,480,000 shares
Short Percent of Float
1.26%
Today's Trading Volume
4,336,782 shares
Average Trading Volume
2,227,152 shares
Today's Volume Vs. Average
195%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

COST Short Interest Over Time

COST Days to Cover Over Time

COST Percentage of Float Shorted Over Time

Costco Wholesale Short Interest History

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
7/31/20255,570,000 shares $5.23 billion +14.6%1.3%2.6 $939.64
7/15/20254,860,000 shares $4.70 billion -14.4%N/A2.4 $967.68
6/30/20255,680,000 shares $5.62 billion +10.7%1.3%2.5 $989.94
6/15/20255,130,000 shares $5.08 billion -6.0%1.2%2.3 $990.21
5/31/20255,460,000 shares $5.73 billion -11.5%1.2%2.3 $1,048.78
5/15/20256,170,000 shares $6.23 billion +2.3%1.4%2.5 $1,010.47
4/30/20256,030,000 shares $6.00 billion -0.2%N/A2.5 $994.50
4/15/20256,040,000 shares $5.90 billion +1.5%1.4%2.5 $976.92
3/31/20255,950,000 shares $5.63 billion -13.4%1.3%2.5 $945.78
3/15/20256,870,000 shares $6.21 billion -3.0%1.6%3.1 $903.92
2/28/20257,080,000 shares $7.42 billion +2.0%1.6%3.3 $1,048.61
2/15/20256,940,000 shares $7.44 billion +17.8%1.6%3.5 $1,071.85
1/31/20255,890,000 shares $5.77 billion -7.4%1.3%2.9 $979.88
1/15/20256,360,000 shares $5.87 billion -2.8%N/A3.3 $923.50
12/31/20246,540,000 shares $5.99 billion +1.4%N/A3.5 $916.27
12/15/20246,450,000 shares $6.38 billion -2.1%N/A3.3 $989.35
11/30/20246,590,000 shares $6.40 billion +1.5%1.5%3.6 $971.88
11/15/20246,490,000 shares $5.89 billion +8.4%1.5%3.5 $907.07
10/31/20245,990,000 shares $5.24 billion -2.6%1.4%3.4 $874.18
10/15/20246,150,000 shares $5.50 billion -9.8%1.4%3.4 $894.61
9/30/20246,820,000 shares $6.05 billion -4.2%N/A3.5 $886.52
9/15/20247,120,000 shares $6.52 billion -2.9%N/A3.7 $916.00
8/31/20247,330,000 shares $6.54 billion +7.0%N/A3.9 $892.38
8/15/20246,850,000 shares $6.01 billion +4.6%N/A3.5 $877.35
7/31/20246,550,000 shares $5.38 billion -7.9%N/A3.4 $822.00
7/15/20247,110,000 shares $6.03 billion -0.6%N/A3.8 $848.73
6/30/20247,150,000 shares $6.08 billion +9.0%N/A4.1 $849.99
6/15/20246,560,000 shares $5.61 billion +3.1%N/A3.7 $855.67
5/31/20246,360,000 shares $5.15 billion -3.6%N/A3.5 $809.89
5/15/20246,600,000 shares $5.19 billion +7.5%N/A3.4 $787.04
4/30/20246,140,000 shares $4.44 billion -2.5%1.4%3.1 $722.90
4/15/20246,300,000 shares $4.53 billion -0.9%1.4%3.1 $718.28
3/31/20246,360,000 shares $4.66 billion -5.9%1.4%3 $732.63
3/15/20246,760,000 shares $4.91 billion +0.5%1.5%3.1 $725.63
2/29/20246,730,000 shares $5.01 billion +6.5%1.5%2.8 $743.89
2/15/20246,320,000 shares $4.58 billion +10.3%1.4%3 $724.51
1/31/20245,730,000 shares $3.98 billion -5.0%1.3%2.7 $694.88
1/15/20246,030,000 shares $4.12 billion -2.1%1.4%2.9 $683.24
12/31/20236,160,000 shares $4.07 billion +7.5%1.4%3 $660.08
12/15/20235,730,000 shares $3.78 billion +14.6%1.3%2.7 $658.82
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11/30/20235,000,000 shares $2.96 billion -5.8%1.1%2.8 $592.74
11/15/20235,310,000 shares $3.17 billion +20.4%1.2%3.1 $596.78
10/31/20234,410,000 shares $2.44 billion -6.2%1.0%2.6 $552.44
10/15/20234,700,000 shares $2.66 billion +8.6%1.1%2.9 $566.84
9/30/20234,330,000 shares $2.45 billion +6.4%1.0%2.6 $564.96
9/15/20234,070,000 shares $2.26 billion -1.5%0.9%2.6 $556.36
8/31/20234,130,000 shares $2.27 billion +2.2%0.9%2.6 $549.28
8/15/20234,040,000 shares $2.26 billion -2.7%0.9%2.3 $558.51
7/31/20234,150,000 shares $2.33 billion -3.0%0.9%2.3 $560.67
7/15/20234,280,000 shares $2.34 billion +11.2%1.0%2.3 $546.70
6/30/20233,850,000 shares $2.07 billion -6.3%0.9%2.1 $538.38
6/15/20234,110,000 shares $2.17 billion +15.1%0.9%2.3 $529.18
5/31/20233,570,000 shares $1.83 billion +6.3%N/A1.9 $511.56
5/15/20233,360,000 shares $1.69 billion -4.0%0.8%1.8 $502.04
4/30/20233,500,000 shares $1.76 billion -6.9%0.8%1.9 $503.22
4/15/20233,760,000 shares $1.85 billion +11.9%0.9%2 $491.30
3/31/20233,360,000 shares $1.67 billion -4.6%0.8%1.8 $496.87
3/15/20233,520,000 shares $1.71 billion +14.7%0.8%1.8 $485.66
2/28/20233,070,000 shares $1.49 billion +2.7%0.7%1.5 $484.18
2/15/20232,990,000 shares $1.53 billion +0.7%0.7%1.4 $511.28
1/31/20232,970,000 shares $1.52 billion -18.0%0.7%1.4 $511.14
1/15/20233,620,000 shares $1.76 billion -18.5%0.8%1.6 $485.25
12/30/20224,440,000 shares $2.03 billion +5.5%1.0%2 $456.50
12/15/20224,210,000 shares $1.95 billion -13.2%1.0%1.8 $463.91
11/30/20224,850,000 shares $2.62 billion +5.0%1.1%2.1 $539.25
11/15/20224,620,000 shares $2.43 billion +1.3%1.1%2.2 $526.47
10/31/20224,560,000 shares $2.29 billion -1.5%1.0%2.2 $501.50
10/15/20224,630,000 shares $2.11 billion +10.8%1.1%2.2 $454.65
9/30/20224,180,000 shares $1.97 billion -1.9%1.0%1.9 $472.27
9/15/20224,260,000 shares $2.14 billion +3.9%1.0%2 $503.50
8/31/20224,100,000 shares $2.14 billion -3.1%0.9%1.9 $522.10
8/15/20224,230,000 shares $2.31 billion +11.6%1.0%1.7 $545.75
7/31/20223,790,000 shares $2.05 billion +3.3%0.9%1.3 $541.30
7/15/20223,670,000 shares $1.92 billion -1.9%0.8%1.3 $522.95
6/30/20223,740,000 shares $1.79 billion -9.7%0.9%1.3 $479.28
6/15/20224,140,000 shares $1.90 billion +0.5%1.0%1.4 $458.79
5/31/20224,120,000 shares $1.92 billion +4.3%N/A1.4 $466.22
5/15/20223,950,000 shares $1.96 billion -12.8%0.9%1.4 $497.27
4/30/20224,530,000 shares $2.41 billion +9.2%N/A1.8 $531.72
4/15/20224,150,000 shares $2.45 billion +1.2%N/A1.7 $590.39
3/31/20224,100,000 shares $2.36 billion +0.2%N/A0 $575.85
3/15/20224,090,000 shares $2.22 billion -7.5%N/A1.6 $542.32
2/28/20224,420,000 shares $2.30 billion -7.1%N/A1.6 $519.25
2/15/20224,760,000 shares $2.45 billion +5.1%N/A1.8 $513.92
1/31/20224,530,000 shares $2.29 billion +4.6%N/A1.8 $505.13
1/15/20224,330,000 shares $2.18 billion -11.3%N/A1.7 $502.99
12/31/20214,880,000 shares $2.77 billion +8.2%N/A2.1 $567.70
12/15/20214,510,000 shares $2.55 billion +22.9%N/A2 $565.48
11/30/20213,670,000 shares $1.98 billion -13.9%0.8%1.8 $539.38
11/15/20214,260,000 shares $2.21 billion -3.2%1.0%2.4 $519.89
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10/29/20214,400,000 shares $2.16 billion -5.0%1.0%2.5 $491.54
10/15/20214,630,000 shares $2.09 billion -6.5%1.1%2.7 $452.39
9/30/20214,950,000 shares $2.22 billion -5.7%1.1%2.9 $449.35
9/15/20215,250,000 shares $2.42 billion +2.1%1.2%3.1 $460.73
8/31/20215,140,000 shares $2.34 billion +6.6%1.2%3.1 $455.49
8/13/20214,820,000 shares $2.16 billion -7.3%1.1%2.6 $447.82
7/30/20215,200,000 shares $2.23 billion +13.5%1.2%2.8 $429.72
7/15/20214,580,000 shares $1.89 billion +0.2%1.0%2.4 $411.82
6/30/20214,570,000 shares $1.81 billion +7.8%1.0%2.3 $395.67
6/15/20214,240,000 shares $1.63 billion +5.2%1.0%2 $383.91
5/28/20214,030,000 shares $1.52 billion -6.1%0.9%1.7 $378.27
5/14/20214,290,000 shares $1.63 billion +10.3%N/A1.5 $379.53
4/30/20213,890,000 shares $1.45 billion +4.6%N/A1.4 $373.54
4/15/20213,720,000 shares $1.35 billion -14.1%N/A0 $363.17
3/31/20214,330,000 shares $1.51 billion -3.6%N/A1.4 $349.75
3/15/20214,490,000 shares $1.49 billion +6.7%N/A1.5 $331.14
2/26/20214,210,000 shares $1.41 billion -2.8%N/A1.5 $333.90
2/12/20214,330,000 shares $1.53 billion +19.3%N/A1.8 $352.20
1/29/20213,630,000 shares $1.30 billion +1.1%N/A1.5 $357.06
1/15/20213,590,000 shares $1.30 billion -6.8%N/A1.5 $362.35
12/31/20203,850,000 shares $1.44 billion +19.6%N/A1.7 $374.45
12/15/20203,220,000 shares $1.21 billion +4.9%N/A1.4 $374.38
11/30/20203,070,000 shares $1.19 billion +1.3%N/A1.3 $388.39
11/15/20203,030,000 shares $1.15 billion +15.2%N/A1.3 $378.84
10/30/20202,630,000 shares $959.58 million -17.0%N/A1.2 $364.86
10/15/20203,170,000 shares $1.20 billion +0.3%N/A1.4 $378.34
9/30/20203,160,000 shares $1.12 billion +12.1%N/A1.4 $355.00
9/15/20202,820,000 shares $969.83 million -1.1%N/A1.3 $343.91
8/31/20202,850,000 shares $990.83 million -3.7%N/A1.3 $347.66

COST Short Interest - Frequently Asked Questions

What is Costco Wholesale's current short interest?

Short interest is the volume of Costco Wholesale shares that have been sold short but have not yet been closed out or covered. As of July 31st, investors have sold 5,570,000 shares of COST short. 1.26% of Costco Wholesale's shares are currently sold short. Learn More on Costco Wholesale's current short interest.

What is a good short interest ratio for Costco Wholesale?

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. COST shares currently have a short interest ratio of 3.0. Learn More on Costco Wholesale's short interest ratio.

Which institutional investors are shorting Costco Wholesale?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Costco Wholesale: Marex Group plc, Hudson Bay Capital Management LP, Wolverine Trading LLC, Nomura Holdings Inc., CTC LLC, National Bank of Canada FI, Man Group plc, LMR Partners LLP, Hudson Bay Capital Management LP, Group One Trading LLC, Cubist Systematic Strategies LLC, BNP Paribas Financial Markets, Bank of America Corp DE, Jane Street Group LLC, Raymond James Financial Inc., Luxor Capital Group LP, Volterra Technologies LP, Squarepoint Ops LLC, Qube Research & Technologies Ltd, Maven Securities LTD, Capula Management Ltd, Marshall Wace LLP, Walleye Capital LLC, Walleye Trading LLC, HBK Investments L P, Lido Advisors LLC, Delta Accumulation LLC, Capital Fund Management S.A., Hsbc Holdings PLC, Sumitomo Mitsui Financial Group Inc., Eisler Capital Management Ltd., JPMorgan Chase & Co., Greenland Capital Management LP, Citigroup Inc., Waratah Capital Advisors Ltd., Tortoise Investment Management LLC, Creative Planning, Monaco Asset Management SAM, Marathon Trading Investment Management LLC, Wolverine Asset Management LLC, Arkadios Wealth Advisors, FNY Investment Advisers LLC, D.A. Davidson & CO., Allianz Asset Management GmbH, Twin Tree Management LP, ADAPT Investment Managers SA, Robertson Stephens Wealth Management LLC, McKinley Carter Wealth Services Inc., Vontobel Holding Ltd., Empirical Financial Services LLC d.b.a. Empirical Wealth Management, and Quaker Wealth Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Costco Wholesale?

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. 1.26% of Costco Wholesale's floating shares are currently sold short.

Is Costco Wholesale's short interest increasing or decreasing?

Costco Wholesale saw a increase in short interest in July. As of July 31st, there was short interest totaling 5,570,000 shares, an increase of 14.6% from the previous total of 4,860,000 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.

How does Costco Wholesale's short interest compare to its competitors?

1.26% of Costco Wholesale's shares are currently sold short. Here is how the short interest of companies compare to Costco Wholesale: Apple Inc. (0.71%), Amazon.com, Inc. (0.66%), Casey's General Stores, Inc. (2.44%), lululemon athletica inc. (5.73%), Ross Stores, Inc. (1.70%), Ulta Beauty Inc. (4.26%), Burlington Stores, Inc. (4.74%), The Home Depot, Inc. (1.08%), Target Corporation (3.42%), Walmart Inc. (0.47%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), Strategy Inc ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks.

What does it mean to sell short Costco Wholesale stock?

Short selling COST is an investing strategy that aims to generate trading profit from Costco Wholesale as its price is falling. COST shares are trading down $0.24 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.

How does a short squeeze work against Costco Wholesale?

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

How often is Costco Wholesale's short interest reported?

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including COST, twice per month. The most recent reporting period available is July, 31 2025.



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This page (NASDAQ:COST) was last updated on 8/26/2025 by MarketBeat.com Staff
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