Pfizer (PFE) Short Interest Ratio & Short Volume

$25.65 -0.83 (-3.15%)

Closing price 05/8/2026 03:59 PM Eastern

Extended Trading

$25.68 +0.03 (+0.11%)

As of 05/8/2026 07:59 PM Eastern

Pfizer Short Interest Overview

As of April 15, 2026, Pfizer (PFE) had a short interest of 133.41 million shares sold short, representing 2.36% of the public float. This marks a 0.72% 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 36.09 million shares to cover all short positions.

Current Short Interest: 133,414,052 shares
Previous Short Interest: 132,465,697 shares
Change Vs. Previous Month: 0.72%
Dollar Volume Sold Short: $3.63 billion
Short Interest Ratio: 4.0 Days to Cover
Last Record Date: April 15, 2026

Outstanding Shares: 5,699,440,000 shares
Short Percent of Float: 2.36%
Today's Trading Volume: 37,419,858 shares
Average Trading Volume: 36,085,544 shares
Today's Volume Vs. Average: 104%

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Short Interest Chart Days to Cover Chart Short Percent of Float Chart

PFE Short Interest Over Time

PFE Days to Cover Over Time

PFE Percentage of Float Shorted Over Time

Pfizer Tesla Short Interest History & Recent Changes

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Report Date	Total Shares Sold Short	Dollar Volume Sold Short	Change from Previous Report	Percentage of Float Shorted	Days to Cover	Price on Report Date
4/15/2026	133,414,052 shares	$3.63 billion	+0.7%	2.4%	3.99	$27.20
3/31/2026	132,465,697 shares	$3.72 billion	+0.8%	2.3%	3.08	$28.08
3/13/2026	131,409,882 shares	$3.49 billion	-8.0%	2.3%	3.25	$26.60
2/27/2026	142,846,663 shares	$3.94 billion	-2.4%	2.5%	4.07	$27.61
2/13/2026	146,379,047 shares	$4.04 billion	+2.3%	2.6%	2.52	$27.58
1/30/2026	143,036,062 shares	$3.78 billion	+10.2%	2.5%	2.78	$26.43
1/15/2026	129,801,593 shares	$3.36 billion	-0.2%	2.3%	2.73	$25.86
12/31/2025	130,020,324 shares	$3.24 billion	-6.8%	2.3%	2.74	$24.90
12/15/2025	139,486,093 shares	$3.69 billion	+0.3%	2.5%	2.97	$26.45
11/28/2025	139,072,627 shares	$3.58 billion	+6.4%	2.4%	2.5	$25.76
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11/14/2025	130,660,363 shares	$3.28 billion	+3.2%	2.3%	1.04	$25.08
10/31/2025	126,587,750 shares	$3.12 billion	+8.4%	2.2%	2.13	$24.68
10/15/2025	116,820,000 shares	$2.85 billion	+2.5%	2.1%	2.4	$24.39
9/30/2025	113,950,000 shares	$2.90 billion	+0.9%	N/A	2.4	$25.46
9/15/2025	112,930,000 shares	$2.71 billion	+9.1%	N/A	2.6	$23.98
8/31/2025	103,470,000 shares	$2.56 billion	-9.1%	1.8%	2.5	$24.74
8/15/2025	113,850,000 shares	$2.86 billion	+5.6%	N/A	2.8	$25.16
7/31/2025	107,780,000 shares	$2.51 billion	+8.6%	1.9%	2.5	$23.27
7/15/2025	99,270,000 shares	$2.44 billion	-11.3%	N/A	2.3	$24.63
6/30/2025	111,910,000 shares	$2.72 billion	+4.9%	2.0%	2.4	$24.27
6/15/2025	106,730,000 shares	$2.62 billion	+1.7%	1.9%	2.2	$24.51
5/31/2025	104,990,000 shares	$2.46 billion	-2.2%	1.9%	2	$23.46
5/15/2025	107,380,000 shares	$2.42 billion	-6.8%	1.9%	2	$22.57
4/30/2025	115,160,000 shares	$2.81 billion	+7.2%	N/A	2.2	$24.41
4/15/2025	107,430,000 shares	$2.41 billion	+10.2%	1.9%	2.1	$22.45
3/31/2025	97,490,000 shares	$2.47 billion	-1.7%	1.7%	2	$25.36
3/15/2025	99,170,000 shares	$2.55 billion	+4.4%	1.8%	2.2	$25.74
2/28/2025	94,960,000 shares	$2.51 billion	+6.6%	1.7%	2.3	$26.43
2/15/2025	89,120,000 shares	$2.27 billion	+21.1%	1.6%	2.2	$25.50
1/31/2025	73,570,000 shares	$1.95 billion	-19.8%	N/A	1.7	$26.51
1/15/2025	91,780,000 shares	$2.41 billion	+21.2%	N/A	2.1	$26.25
12/31/2024	75,710,000 shares	$2.01 billion	-11.3%	N/A	1.8	$26.53
12/15/2024	85,370,000 shares	$2.18 billion	-5.5%	N/A	2	$25.58
11/30/2024	90,380,000 shares	$2.37 billion	-4.4%	N/A	2.3	$26.21
11/15/2024	94,540,000 shares	$2.34 billion	+52.8%	N/A	2.5	$24.80
10/31/2024	61,870,000 shares	$1.75 billion	-12.8%	N/A	1.9	$28.29
10/15/2024	70,940,000 shares	$2.09 billion	+4.9%	N/A	2.3	$29.46
9/30/2024	67,620,000 shares	$1.96 billion	-9.7%	N/A	2.1	$28.94
9/15/2024	74,840,000 shares	$2.19 billion	+14.5%	N/A	2.4	$29.27
8/31/2024	65,380,000 shares	$1.90 billion	+5.9%	N/A	2	$29.01

8/15/2024	61,730,000 shares	$1.77 billion	-5.5%	N/A	1.8	$28.71
7/31/2024	65,330,000 shares	$2.00 billion	+17.3%	N/A	1.9	$30.54
7/15/2024	55,700,000 shares	$1.62 billion	-7.0%	N/A	1.5	$29.10
6/30/2024	59,890,000 shares	$1.68 billion	-3.5%	N/A	1.6	$27.98
6/15/2024	62,070,000 shares	$1.71 billion	-18.3%	N/A	1.6	$27.53
5/31/2024	75,970,000 shares	$2.18 billion	+8.2%	N/A	1.9	$28.68
5/15/2024	70,220,000 shares	$2.02 billion	+12.3%	N/A	1.7	$28.82
4/30/2024	62,510,000 shares	$1.60 billion	-8.2%	N/A	1.5	$25.61
4/15/2024	68,060,000 shares	$1.76 billion	+4.7%	N/A	1.6	$25.90
3/31/2024	65,000,000 shares	$1.80 billion	-9.3%	N/A	1.5	$27.75
3/15/2024	71,650,000 shares	$2.00 billion	+8.4%	N/A	1.7	$27.97
2/29/2024	66,120,000 shares	$1.76 billion	+9.0%	N/A	1.4	$26.55
2/15/2024	60,680,000 shares	$1.67 billion	+0.8%	N/A	1.3	$27.51
1/31/2024	60,190,000 shares	$1.63 billion	+4.5%	N/A	1.3	$27.06
1/15/2024	57,580,000 shares	$1.65 billion	+1.0%	N/A	1.4	$28.70
12/31/2023	57,030,000 shares	$1.64 billion	-7.9%	N/A	1.4	$28.79
12/15/2023	61,890,000 shares	$1.65 billion	+8.7%	N/A	1.6	$26.59
11/30/2023	56,940,000 shares	$1.73 billion	-1.0%	N/A	1.8	$30.44
11/15/2023	57,500,000 shares	$1.74 billion	+21.9%	N/A	2	$30.19
10/31/2023	47,180,000 shares	$1.44 billion	-13.5%	N/A	1.8	$30.56
10/15/2023	54,570,000 shares	$1.75 billion	+6.8%	N/A	2	$32.11
9/30/2023	51,080,000 shares	$1.69 billion	+2.3%	N/A	2.1	$33.17
9/15/2023	49,950,000 shares	$1.70 billion	-1.0%	N/A	2	$34.03
8/31/2023	50,460,000 shares	$1.79 billion	-3.7%	N/A	2.1	$35.38
8/15/2023	52,390,000 shares	$1.85 billion	+14.2%	N/A	1.9	$35.39
7/31/2023	45,860,000 shares	$1.65 billion	-13.0%	N/A	1.7	$36.06
7/15/2023	52,680,000 shares	$1.91 billion	-11.5%	N/A	2	$36.32
6/30/2023	59,510,000 shares	$2.18 billion	+8.0%	N/A	2.3	$36.68
6/15/2023	55,120,000 shares	$2.19 billion	-1.2%	N/A	2.2	$39.77
5/31/2023	55,780,000 shares	$2.12 billion	+21.5%	N/A	2.3	$38.02
5/15/2023	45,920,000 shares	$1.71 billion	+4.7%	N/A	1.9	$37.16
4/30/2023	43,870,000 shares	$1.71 billion	+6.0%	N/A	2.1	$38.89
4/15/2023	41,370,000 shares	$1.70 billion	-15.7%	N/A	1.9	$41.19
3/31/2023	49,070,000 shares	$2.00 billion	+11.2%	N/A	2.1	$40.80
3/15/2023	44,140,000 shares	$1.78 billion	+14.7%	N/A	2	$40.28
2/28/2023	38,490,000 shares	$1.56 billion	+1.2%	N/A	1.7	$40.57
2/15/2023	38,020,000 shares	$1.65 billion	-2.9%	N/A	1.7	$43.32
1/31/2023	39,170,000 shares	$1.73 billion	+5.4%	N/A	1.8	$44.16
1/15/2023	37,170,000 shares	$1.78 billion	-12.6%	N/A	1.7	$47.85
12/30/2022	42,530,000 shares	$2.18 billion	-26.7%	N/A	2	$51.24
12/15/2022	58,020,000 shares	$3.11 billion	-7.7%	N/A	2.7	$53.61
11/30/2022	62,830,000 shares	$3.15 billion	-10.3%	N/A	3.1	$50.13
11/15/2022	70,040,000 shares	$3.40 billion	+28.1%	N/A	3.6	$48.57
10/31/2022	54,690,000 shares	$2.55 billion	-12.5%	N/A	2.7	$46.55
10/15/2022	62,510,000 shares	$2.68 billion	+3.5%	N/A	3.2	$42.86
9/30/2022	60,370,000 shares	$2.64 billion	-5.5%	N/A	3.3	$43.76
9/15/2022	63,890,000 shares	$2.94 billion	+2.7%	N/A	3.6	$45.94
8/31/2022	62,200,000 shares	$2.81 billion	-8.5%	N/A	3.3	$45.23
8/15/2022	67,940,000 shares	$3.38 billion	+13.4%	N/A	3.4	$49.75
7/31/2022	59,900,000 shares	$3.03 billion	-11.1%	N/A	2.9	$50.51

7/15/2022	67,350,000 shares	$3.49 billion	-2.3%	N/A	3	$51.75
6/30/2022	68,930,000 shares	$3.61 billion	-10.5%	N/A	2.9	$52.43
6/15/2022	76,980,000 shares	$3.73 billion	-0.3%	N/A	3.1	$48.51
5/31/2022	77,200,000 shares	$4.09 billion	+33.9%	N/A	2.9	$53.04
5/15/2022	57,670,000 shares	$2.88 billion	-15.2%	N/A	2.1	$49.92
4/30/2022	67,990,000 shares	$3.34 billion	+8.5%	N/A	2.3	$49.07
4/15/2022	62,650,000 shares	$3.33 billion	+1.8%	N/A	2	$53.12
3/31/2022	61,560,000 shares	$3.19 billion	+0.6%	N/A	1.9	$51.77
3/15/2022	61,180,000 shares	$3.19 billion	-6.8%	N/A	1.7	$52.21
2/28/2022	65,640,000 shares	$3.08 billion	+3.8%	N/A	1.7	$46.94
2/15/2022	63,260,000 shares	$3.15 billion	-8.6%	N/A	1.5	$49.79
1/31/2022	69,220,000 shares	$3.65 billion	+8.0%	N/A	1.6	$52.69
1/15/2022	64,080,000 shares	$3.52 billion	+9.3%	N/A	1.5	$54.95
12/31/2021	58,640,000 shares	$3.46 billion	-11.2%	N/A	1.4	$59.05
12/15/2021	66,010,000 shares	$3.88 billion	+3.9%	N/A	1.7	$58.80
11/30/2021	63,560,000 shares	$3.42 billion	+0.0%	N/A	1.9	$53.73
11/15/2021	63,540,000 shares	$3.15 billion	+7.9%	N/A	2.1	$49.65
10/29/2021	58,880,000 shares	$2.58 billion	+8.1%	N/A	1.7	$43.74
10/15/2021	54,480,000 shares	$2.26 billion	+4.4%	N/A	1.7	$41.49
9/30/2021	52,180,000 shares	$2.24 billion	-3.5%	N/A	1.6	$43.01
9/15/2021	54,090,000 shares	$2.42 billion	-7.8%	N/A	1.7	$44.77
8/31/2021	58,670,000 shares	$2.70 billion	-4.5%	N/A	1.9	$46.07
8/13/2021	61,420,000 shares	$2.98 billion	+12.7%	N/A	2.1	$48.48
7/30/2021	54,500,000 shares	$2.33 billion	-11.0%	1.0%	2.1	$42.81
7/15/2021	61,240,000 shares	$2.46 billion	-3.0%	N/A	2.5	$40.09
6/30/2021	63,150,000 shares	$2.47 billion	+5.7%	N/A	2.4	$39.16
6/15/2021	59,770,000 shares	$2.37 billion	+1.3%	N/A	2.2	$39.59
5/28/2021	59,000,000 shares	$2.29 billion	+2.9%	N/A	2.2	$38.73
5/14/2021	57,320,000 shares	$2.30 billion	-1.2%	N/A	2	$40.10

PFE Short Interest - Frequently Asked Questions

Short interest is the volume of Pfizer shares that have been sold short but have not yet been covered or closed out. As of April 15th, investors have sold 133,414,052 shares of PFE short. 2.36% of Pfizer's shares are currently sold short. Learn More on Pfizer'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. PFE shares currently have a short interest ratio of 4.0. Learn More on Pfizer's short interest ratio.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Pfizer: Hsbc Holdings PLC, PEAK6 LLC, Capital Markets Trading UK LLP, CMT Capital Markets Trading GmbH, Beacon Pointe Advisors LLC, Tudor Investment Corp ET AL, Millennium Management LLC, Man Group plc, Caption Management LLC, Balyasny Asset Management L.P., Alphadyne Asset Management LP, Schonfeld Strategic Advisors LLC, J. Goldman & Co LP, Cetera Investment Advisers, Susquehanna Advisors Group Inc., Royal Bank of Canada, ADAPT Investment Managers SA, Squarepoint Ops LLC, Verition Fund Management LLC, Walleye Trading LLC, PEAK6 LLC, Marathon Trading Investment Management LLC, Barclays PLC, Marshall Wace LLP, Walleye Capital LLC, Bank of Nova Scotia, Vontobel Holding Ltd., Wells Fargo & Company MN, Jane Street Group LLC, DRW Securities LLC, Capital Markets Trading UK LLP, Groupe la Francaise, CMT Capital Markets Trading GmbH, Marex Group plc, Bank of Montreal Can, Group One Trading LLC, Mirae Asset Securities USA Inc., Simplex Trading LLC, Allianz Asset Management GmbH, JPMorgan Chase & Co., Twin Tree Management LP, Tradition Wealth Management LLC, Total Wealth Planning & Management Inc., Goldman Sachs Group Inc., BNP Paribas Financial Markets, Pasadena Private Wealth LLC, and Jefferies Financial Group Inc.. 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. 2.36% of Pfizer's floating shares are currently sold short.

Pfizer saw a increase in short interest during the month of April. As of April 15th, there was short interest totaling 133,414,052 shares, an increase of 0.7% from the previous total of 132,465,697 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.

2.36% of Pfizer's shares are currently sold short. Here is how the short interest of companies compare to Pfizer: Amgen Inc. (2.38%), Gilead Sciences, Inc. (1.84%), Moderna, Inc. (16.87%), Novavax, Inc. (28.73%), AbbVie Inc. (1.24%), Astrazeneca Plc (0.25%), Bristol Myers Squibb Company (1.59%), Johnson & Johnson (0.82%), Eli Lilly and Company (0.86%), Merck & Co., Inc. (1.11%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($87.50 billion), Invesco QQQ ($42.26 billion), iShares Russell 2000 ETF ($24.79 billion), Salesforce Inc. ($13.16 billion), SPDR S&P Biotech ETF ($10.01 billion), Western Digital Corporation ($9.77 billion), Sandisk Corporation ($8.69 billion), iShares 20+ Year Treasury Bond ETF ($8.06 billion), CoreWeave Inc. ($7.67 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.64 billion). View all of the most shorted stocks.

Short selling PFE is an investing strategy that aims to generate trading profit from Pfizer as its price is falling. PFE shares are trading down $0.83 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 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.

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 April, 15 2026.

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

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.

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This page (NYSE:PFE) was last updated on 5/9/2026 by MarketBeat.com Staff.

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Pfizer (PFE) Short Interest Ratio & Short Volume

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Pfizer (PFE) Short Interest Ratio & Short Volume

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PFE Short Interest Over Time

PFE Days to Cover Over Time

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PFE Short Interest - Frequently Asked Questions

What is Pfizer's current short interest?

What is a good short interest ratio for Pfizer?

Which institutional investors are shorting Pfizer?

What is a good short interest percentage for Pfizer?

Is Pfizer's short interest increasing or decreasing?

How does Pfizer's short interest compare to its competitors?

Which stocks are the most shorted right now?

What does it mean to sell short Pfizer stock?

How does a short squeeze work against Pfizer?

How often is Pfizer's short interest reported?

What do PFE's short interest metrics mean?

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