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Pfizer (PFE) Short Interest Ratio & Short Volume

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$23.98 +0.11 (+0.46%)
Closing price 03:59 PM Eastern
Extended Trading
$23.98 +0.00 (+0.02%)
As of 08:00 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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Pfizer Short Interest Data

Pfizer (PFE) has a short interest of 103.47 million shares, representing 1.82% of the float (the number of shares available for trading by the public). This marks a -9.12% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.5, indicating that it would take 2.5 days of the average trading volume of 37.47 million shares to cover all short positions.

Current Short Interest
103,470,000 shares
Previous Short Interest
113,850,000 shares
Change Vs. Previous Month
-9.12%
Dollar Volume Sold Short
$2.56 billion
Short Interest Ratio
2.5 Days to Cover
Last Record Date
August 31, 2025
Outstanding Shares
5,685,550,000 shares
Short Percent of Float
1.82%
Today's Trading Volume
50,736,116 shares
Average Trading Volume
37,472,864 shares
Today's Volume Vs. Average
135%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

PFE Short Interest Over Time

PFE Days to Cover Over Time

PFE Percentage of Float Shorted Over Time

Pfizer 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
8/31/2025103,470,000 shares $2.56 billion -9.1%1.8%2.5 $24.74
8/15/2025113,850,000 shares $2.86 billion +5.6%N/A2.8 $25.16
7/31/2025107,780,000 shares $2.51 billion +8.6%1.9%2.5 $23.27
7/15/202599,270,000 shares $2.44 billion -11.3%N/A2.3 $24.63
6/30/2025111,910,000 shares $2.72 billion +4.9%2.0%2.4 $24.27
6/15/2025106,730,000 shares $2.62 billion +1.7%1.9%2.2 $24.51
5/31/2025104,990,000 shares $2.46 billion -2.2%1.9%2 $23.46
5/15/2025107,380,000 shares $2.42 billion -6.8%1.9%2 $22.57
4/30/2025115,160,000 shares $2.81 billion +7.2%N/A2.2 $24.41
4/15/2025107,430,000 shares $2.41 billion +10.2%1.9%2.1 $22.45
3/31/202597,490,000 shares $2.47 billion -1.7%1.7%2 $25.36
3/15/202599,170,000 shares $2.55 billion +4.4%1.8%2.2 $25.74
2/28/202594,960,000 shares $2.51 billion +6.6%1.7%2.3 $26.43
2/15/202589,120,000 shares $2.27 billion +21.1%1.6%2.2 $25.50
1/31/202573,570,000 shares $1.95 billion -19.8%N/A1.7 $26.51
1/15/202591,780,000 shares $2.41 billion +21.2%N/A2.1 $26.25
12/31/202475,710,000 shares $2.01 billion -11.3%N/A1.8 $26.53
12/15/202485,370,000 shares $2.18 billion -5.5%N/A2 $25.58
11/30/202490,380,000 shares $2.37 billion -4.4%N/A2.3 $26.21
11/15/202494,540,000 shares $2.34 billion +52.8%N/A2.5 $24.80
10/31/202461,870,000 shares $1.75 billion -12.8%N/A1.9 $28.29
10/15/202470,940,000 shares $2.09 billion +4.9%N/A2.3 $29.46
9/30/202467,620,000 shares $1.96 billion -9.7%N/A2.1 $28.94
9/15/202474,840,000 shares $2.19 billion +14.5%N/A2.4 $29.27
8/31/202465,380,000 shares $1.90 billion +5.9%N/A2 $29.01
8/15/202461,730,000 shares $1.77 billion -5.5%N/A1.8 $28.71
7/31/202465,330,000 shares $2.00 billion +17.3%N/A1.9 $30.54
7/15/202455,700,000 shares $1.62 billion -7.0%N/A1.5 $29.10
6/30/202459,890,000 shares $1.68 billion -3.5%N/A1.6 $27.98
6/15/202462,070,000 shares $1.71 billion -18.3%N/A1.6 $27.53
5/31/202475,970,000 shares $2.18 billion +8.2%N/A1.9 $28.68
5/15/202470,220,000 shares $2.02 billion +12.3%N/A1.7 $28.82
4/30/202462,510,000 shares $1.60 billion -8.2%N/A1.5 $25.61
4/15/202468,060,000 shares $1.76 billion +4.7%N/A1.6 $25.90
3/31/202465,000,000 shares $1.80 billion -9.3%N/A1.5 $27.75
3/15/202471,650,000 shares $2.00 billion +8.4%N/A1.7 $27.97
2/29/202466,120,000 shares $1.76 billion +9.0%N/A1.4 $26.55
2/15/202460,680,000 shares $1.67 billion +0.8%N/A1.3 $27.51
1/31/202460,190,000 shares $1.63 billion +4.5%N/A1.3 $27.06
1/15/202457,580,000 shares $1.65 billion +1.0%N/A1.4 $28.70
12/31/202357,030,000 shares $1.64 billion -7.9%N/A1.4 $28.79
12/15/202361,890,000 shares $1.65 billion +8.7%N/A1.6 $26.59
11/30/202356,940,000 shares $1.73 billion -1.0%N/A1.8 $30.44
11/15/202357,500,000 shares $1.74 billion +21.9%N/A2 $30.19
10/31/202347,180,000 shares $1.44 billion -13.5%N/A1.8 $30.56
10/15/202354,570,000 shares $1.75 billion +6.8%N/A2 $32.11
9/30/202351,080,000 shares $1.69 billion +2.3%N/A2.1 $33.17
9/15/202349,950,000 shares $1.70 billion -1.0%N/A2 $34.03
8/31/202350,460,000 shares $1.79 billion -3.7%N/A2.1 $35.38
8/15/202352,390,000 shares $1.85 billion +14.2%N/A1.9 $35.39
7/31/202345,860,000 shares $1.65 billion -13.0%N/A1.7 $36.06
7/15/202352,680,000 shares $1.91 billion -11.5%N/A2 $36.32
6/30/202359,510,000 shares $2.18 billion +8.0%N/A2.3 $36.68
6/15/202355,120,000 shares $2.19 billion -1.2%N/A2.2 $39.77
5/31/202355,780,000 shares $2.12 billion +21.5%N/A2.3 $38.02
5/15/202345,920,000 shares $1.71 billion +4.7%N/A1.9 $37.16
4/30/202343,870,000 shares $1.71 billion +6.0%N/A2.1 $38.89
4/15/202341,370,000 shares $1.70 billion -15.7%N/A1.9 $41.19
3/31/202349,070,000 shares $2.00 billion +11.2%N/A2.1 $40.80
3/15/202344,140,000 shares $1.78 billion +14.7%N/A2 $40.28
2/28/202338,490,000 shares $1.56 billion +1.2%N/A1.7 $40.57
2/15/202338,020,000 shares $1.65 billion -2.9%N/A1.7 $43.32
1/31/202339,170,000 shares $1.73 billion +5.4%N/A1.8 $44.16
1/15/202337,170,000 shares $1.78 billion -12.6%N/A1.7 $47.85
12/30/202242,530,000 shares $2.18 billion -26.7%N/A2 $51.24
12/15/202258,020,000 shares $3.11 billion -7.7%N/A2.7 $53.61
11/30/202262,830,000 shares $3.15 billion -10.3%N/A3.1 $50.13
11/15/202270,040,000 shares $3.40 billion +28.1%N/A3.6 $48.57
10/31/202254,690,000 shares $2.55 billion -12.5%N/A2.7 $46.55
10/15/202262,510,000 shares $2.68 billion +3.5%N/A3.2 $42.86
9/30/202260,370,000 shares $2.64 billion -5.5%N/A3.3 $43.76
9/15/202263,890,000 shares $2.94 billion +2.7%N/A3.6 $45.94
8/31/202262,200,000 shares $2.81 billion -8.5%N/A3.3 $45.23
8/15/202267,940,000 shares $3.38 billion +13.4%N/A3.4 $49.75
7/31/202259,900,000 shares $3.03 billion -11.1%N/A2.9 $50.51
7/15/202267,350,000 shares $3.49 billion -2.3%N/A3 $51.75
6/30/202268,930,000 shares $3.61 billion -10.5%N/A2.9 $52.43
6/15/202276,980,000 shares $3.73 billion -0.3%N/A3.1 $48.51
5/31/202277,200,000 shares $4.09 billion +33.9%N/A2.9 $53.04
5/15/202257,670,000 shares $2.88 billion -15.2%N/A2.1 $49.92
4/30/202267,990,000 shares $3.34 billion +8.5%N/A2.3 $49.07
4/15/202262,650,000 shares $3.33 billion +1.8%N/A2 $53.12
3/31/202261,560,000 shares $3.19 billion +0.6%N/A1.9 $51.77
3/15/202261,180,000 shares $3.19 billion -6.8%N/A1.7 $52.21
2/28/202265,640,000 shares $3.08 billion +3.8%N/A1.7 $46.94
2/15/202263,260,000 shares $3.15 billion -8.6%N/A1.5 $49.79
1/31/202269,220,000 shares $3.65 billion +8.0%N/A1.6 $52.69
1/15/202264,080,000 shares $3.52 billion +9.3%N/A1.5 $54.95
12/31/202158,640,000 shares $3.46 billion -11.2%N/A1.4 $59.05
12/15/202166,010,000 shares $3.88 billion +3.9%N/A1.7 $58.80
11/30/202163,560,000 shares $3.42 billion +0.0%N/A1.9 $53.73
11/15/202163,540,000 shares $3.15 billion +7.9%N/A2.1 $49.65
10/29/202158,880,000 shares $2.58 billion +8.1%N/A1.7 $43.74
10/15/202154,480,000 shares $2.26 billion +4.4%N/A1.7 $41.49
9/30/202152,180,000 shares $2.24 billion -3.5%N/A1.6 $43.01
9/15/202154,090,000 shares $2.42 billion -7.8%N/A1.7 $44.77
8/31/202158,670,000 shares $2.70 billion -4.5%N/A1.9 $46.07
8/13/202161,420,000 shares $2.98 billion +12.7%N/A2.1 $48.48
7/30/202154,500,000 shares $2.33 billion -11.0%1.0%2.1 $42.81
7/15/202161,240,000 shares $2.46 billion -3.0%N/A2.5 $40.09
6/30/202163,150,000 shares $2.47 billion +5.7%N/A2.4 $39.16
6/15/202159,770,000 shares $2.37 billion +1.3%N/A2.2 $39.59
5/28/202159,000,000 shares $2.29 billion +2.9%N/A2.2 $38.73
5/14/202157,320,000 shares $2.30 billion -1.2%N/A2 $40.10
4/30/202158,020,000 shares $2.24 billion -4.7%N/A1.9 $38.60
4/15/202160,890,000 shares $2.26 billion -7.6%N/A1.9 $37.17
3/31/202165,930,000 shares $2.38 billion -3.5%N/A2 $36.11
3/15/202168,320,000 shares $2.39 billion +1.0%N/A2 $34.94
2/26/202167,650,000 shares $2.29 billion +7.2%N/A1.7 $33.82
2/12/202163,120,000 shares $2.17 billion +0.0%N/A1.5 $34.43
1/29/202163,110,000 shares $2.26 billion -3.6%N/A1.3 $35.86
1/15/202165,480,000 shares $2.41 billion +0.3%N/A1.4 $36.75
12/31/202065,270,000 shares $2.40 billion +3.4%N/A1.5 $36.74
12/15/202063,140,000 shares $2.48 billion -0.9%N/A1.5 $39.21
11/30/202063,680,000 shares $2.37 billion -4.3%N/A1.7 $37.23
11/15/202066,530,000 shares $2.57 billion +44.9%N/A2.1 $38.62
10/30/202045,930,000 shares $1.62 billion +13.6%N/A1.7 $35.28
10/15/202040,440,000 shares $1.49 billion -10.5%N/A1.7 $36.86
9/30/202045,160,000 shares $1.66 billion +5.6%N/A1.8 $36.70
9/15/202042,750,000 shares $1.58 billion -5.4%N/A1.6 $36.96

PFE Short Interest - Frequently Asked Questions

What is Pfizer's current short interest?

Short interest is the volume of Pfizer shares that have been sold short but have not yet been covered or closed out. As of August 31st, investors have sold 103,470,000 shares of PFE short. 1.82% of Pfizer's shares are currently sold short. Learn More on Pfizer's current short interest.

What is a good short interest ratio for Pfizer?

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. PFE shares currently have a short interest ratio of 2.0. Learn More on Pfizer's short interest ratio.

Which institutional investors are shorting Pfizer?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Pfizer: Hudson Bay Capital Management LP, Nomura Holdings Inc., National Bank of Canada FI, Man Group plc, LMR Partners LLP, Hudson Bay Capital Management LP, Group One Trading LLC, BNP Paribas Financial Markets, Balyasny Asset Management L.P., Bank of America Corp DE, Jane Street Group LLC, Volterra Technologies LP, Squarepoint Ops LLC, Alphadyne Asset Management LP, Qube Research & Technologies Ltd, Maven Securities LTD, Bank of Nova Scotia, Capital Markets Trading UK LLP, CMT Capital Markets Trading GmbH, Capula Management Ltd, Walleye Capital LLC, Walleye Trading LLC, Groupe la Francaise, Capital Fund Management S.A., Jefferies Financial Group Inc., Eisler Capital Management Ltd., JPMorgan Chase & Co., Wernau Asset Management Inc., Citigroup Inc., SG Americas Securities LLC, Garda Capital Partners LP, Marathon Trading Investment Management LLC, Credit Industriel ET Commercial, Mirae Asset Securities USA Inc., Wolverine Asset Management LLC, Allianz Asset Management GmbH, Twin Tree Management LP, Credit Industriel ET Commercial, Total Wealth Planning & Management Inc., DAVENPORT & Co LLC, and IMC Chicago LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Pfizer?

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. 1.82% of Pfizer's floating shares are currently sold short.

Is Pfizer's short interest increasing or decreasing?

Pfizer saw a decrease in short interest during the month of August. As of August 31st, there was short interest totaling 103,470,000 shares, a decrease of 9.1% from the previous total of 113,850,000 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 Pfizer's short interest compare to its competitors?

1.82% of Pfizer's shares are currently sold short. Here is how the short interest of companies in the sector of "medical" compare to Pfizer: Amgen Inc. (2.20%), Gilead Sciences, Inc. (1.42%), Moderna, Inc. (17.42%), Novavax, Inc. (27.28%), Viatris Inc. (3.56%), AbbVie Inc. (0.88%), Bristol Myers Squibb Company (1.54%), Johnson & Johnson (0.78%), Eli Lilly and Company (0.95%), Merck & Co., Inc. (0.95%),

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 ($73.23 billion), Invesco QQQ ($29.52 billion), iShares Russell 2000 ETF ($20.82 billion), iShares 20+ Year Treasury Bond ETF ($10.76 billion), Palo Alto Networks, Inc. ($9.37 billion), Strategy Inc ($7.58 billion), Invesco S&P 500 Equal Weight ETF ($6.78 billion), SPDR S&P Biotech ETF ($6.72 billion), AppLovin Corporation ($6.37 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($6.29 billion). View all of the most shorted stocks.

What does it mean to sell short Pfizer stock?

Short selling PFE is an investing strategy that aims to generate trading profit from Pfizer as its price is falling. PFE shares are trading up $0.02 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 Pfizer?

A short squeeze for Pfizer 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 PFE, which in turn drives the price of the stock up even further.

How often is Pfizer'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 PFE, twice per month. The most recent reporting period available is August, 31 2025.



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This page (NYSE:PFE) was last updated on 9/15/2025 by MarketBeat.com Staff
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