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Amgen (AMGN) Short Interest Ratio & Short Volume

Amgen logo
$274.40 -1.99 (-0.72%)
Closing price 09/15/2025 04:00 PM Eastern
Extended Trading
$272.90 -1.50 (-0.54%)
As of 04:14 AM 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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Amgen Short Interest Data

Amgen (AMGN) has a short interest of 11.80 million shares, representing 2.20% of the float (the number of shares available for trading by the public). This marks a 8.56% increase in short interest from the previous month. The short interest ratio (days to cover) is 5.3, indicating that it would take 5.3 days of the average trading volume of 1.85 million shares to cover all short positions.

Current Short Interest
11,800,000 shares
Previous Short Interest
10,870,000 shares
Change Vs. Previous Month
+8.56%
Dollar Volume Sold Short
$3.39 billion
Short Interest Ratio
5.3 Days to Cover
Last Record Date
August 31, 2025
Outstanding Shares
538,360,000 shares
Float Size
537,300,000 shares
Short Percent of Float
2.20%
Today's Trading Volume
2,562,980 shares
Average Trading Volume
1,853,902 shares
Today's Volume Vs. Average
138%
Short Selling Amgen?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

AMGN Short Interest Over Time

AMGN Days to Cover Over Time

AMGN Percentage of Float Shorted Over Time

Amgen 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
8/31/202511,800,000 shares $3.39 billion +8.6%2.2%5.3 $287.71
8/15/202510,870,000 shares $3.22 billion -13.2%2.0%4.6 $296.47
7/31/202512,520,000 shares $3.69 billion -14.8%2.3%4.9 $295.10
7/15/202514,700,000 shares $4.30 billion -0.3%2.7%5.5 $292.51
6/30/202514,750,000 shares $4.12 billion +11.2%2.8%5 $279.21
6/15/202513,270,000 shares $3.92 billion +2.6%2.5%4.4 $295.22
5/31/202512,940,000 shares $3.71 billion -9.9%2.4%4.3 $287.02
5/15/202514,360,000 shares $3.90 billion -1.8%2.7%4.6 $271.69
4/30/202514,620,000 shares $4.25 billion +0.6%2.7%4.7 $290.92
4/15/202514,540,000 shares $4.29 billion +3.3%2.7%4.6 $295.30
3/31/202514,080,000 shares $4.39 billion -6.5%2.6%4.3 $311.55
3/15/202515,060,000 shares $4.72 billion -6.8%2.8%4.5 $313.71
2/28/202516,160,000 shares $4.98 billion +0.5%3.0%4.8 $308.06
2/15/202516,080,000 shares $4.68 billion +26.2%3.0%4.3 $291.16
1/31/202512,740,000 shares $3.64 billion +11.5%2.4%3.3 $285.42
1/15/202511,430,000 shares $3.07 billion +2.3%2.1%3.2 $268.94
12/31/202411,170,000 shares $2.91 billion -3.1%2.1%3.4 $260.64
12/15/202411,530,000 shares $3.12 billion +3.5%2.2%3.6 $270.62
11/30/202411,140,000 shares $3.15 billion +13.6%2.1%4 $282.87
11/15/20249,810,000 shares $2.78 billion +11.2%1.8%4 $283.61
10/31/20248,820,000 shares $2.82 billion -5.9%1.6%4.8 $320.16
10/15/20249,370,000 shares $3.05 billion -4.5%1.8%4.9 $325.09
9/30/20249,810,000 shares $3.16 billion +9.0%1.8%5 $322.21
9/15/20249,000,000 shares $2.99 billion +6.1%1.7%4.5 $332.45
8/31/20248,480,000 shares $2.83 billion -8.2%1.6%4.1 $333.83
8/15/20249,240,000 shares $3.01 billion -5.6%1.7%4.3 $325.39
7/31/20249,790,000 shares $3.25 billion +2.2%1.8%4.3 $332.47
7/15/20249,580,000 shares $3.16 billion +6.7%1.8%3.9 $330.15
6/30/20248,980,000 shares $2.81 billion -1.5%1.7%3.6 $312.45
6/15/20249,120,000 shares $2.72 billion +0.8%1.7%3.6 $298.62
5/31/20249,050,000 shares $2.77 billion -11.7%1.7%3.5 $305.85
5/15/202410,250,000 shares $3.27 billion +5.5%1.9%3.8 $319.04
4/30/20249,720,000 shares $2.66 billion -3.9%1.8%3.2 $273.94
4/15/202410,110,000 shares $2.68 billion -3.4%1.9%3.5 $265.51
3/31/202410,470,000 shares $2.98 billion -5.8%2.0%3.6 $284.32
3/15/202411,110,000 shares $2.99 billion +0.8%2.1%3.8 $268.87
2/29/202411,020,000 shares $3.02 billion -0.6%2.1%3.8 $273.83
2/15/202411,090,000 shares $3.21 billion +19.3%2.1%4 $289.07
1/31/20249,300,000 shares $2.92 billion +5.2%1.7%3.5 $314.26
1/15/20248,840,000 shares $2.71 billion -2.2%1.7%3.6 $306.51
12/31/20239,040,000 shares $2.60 billion -0.2%1.7%3.6 $288.02
12/15/20239,060,000 shares $2.50 billion +11.9%1.7%3.6 $275.45
11/30/20238,100,000 shares $2.18 billion +19.7%1.5%3.3 $269.64
11/15/20236,770,000 shares $1.85 billion +5.5%1.3%2.8 $273.03
10/31/20236,420,000 shares $1.64 billion +0.9%1.2%2.6 $255.70
10/15/20236,360,000 shares $1.81 billion -0.8%1.2%2.6 $284.10
9/30/20236,410,000 shares $1.72 billion +2.2%1.2%2.6 $268.76
9/15/20236,270,000 shares $1.63 billion +1.1%1.2%2.5 $260.72
8/31/20236,200,000 shares $1.59 billion -11.8%1.2%2.5 $256.34
8/15/20237,030,000 shares $1.87 billion +8.0%1.3%2.6 $266.01
7/31/20236,510,000 shares $1.52 billion -9.3%1.2%2.4 $234.15
7/15/20237,180,000 shares $1.63 billion +3.3%1.4%2.8 $227.43
6/30/20236,950,000 shares $1.54 billion -3.5%1.3%3 $222.02
6/15/20237,200,000 shares $1.64 billion -2.8%1.4%3 $228.44
5/31/20237,410,000 shares $1.64 billion -2.4%1.4%3.1 $220.65
5/15/20237,590,000 shares $1.77 billion -0.3%1.4%3.4 $233.53
4/30/20237,610,000 shares $1.82 billion -4.8%1.4%3.3 $239.74
4/15/20237,990,000 shares $2.00 billion +2.0%1.5%3.3 $250.00
3/31/20237,830,000 shares $1.89 billion +2.9%1.5%3.1 $241.75
3/15/20237,610,000 shares $1.79 billion +3.3%1.4%3.2 $234.90
2/28/20237,370,000 shares $1.71 billion -0.9%1.4%2.9 $231.66
2/15/20237,440,000 shares $1.79 billion -5.8%1.4%2.9 $240.07
1/31/20237,900,000 shares $1.99 billion -10.0%1.5%2.9 $252.40
1/15/20238,780,000 shares $2.39 billion -1.6%1.7%3.3 $271.73
12/30/20228,920,000 shares $2.34 billion -5.7%1.7%3.2 $262.64
12/15/20229,460,000 shares $2.52 billion -4.7%1.8%3.3 $266.14
11/30/20229,930,000 shares $2.84 billion -4.8%1.9%3.5 $286.40
11/15/202210,430,000 shares $2.96 billion -11.4%2.0%3.7 $283.60
10/31/202211,770,000 shares $3.18 billion -30.1%2.2%4.3 $270.35
10/15/202216,840,000 shares $4.23 billion -1.6%3.2%6.4 $251.34
9/30/202217,110,000 shares $3.86 billion +0.9%3.2%6.6 $225.40
9/15/202216,950,000 shares $3.86 billion +2.6%3.2%6.4 $227.66
8/31/202216,520,000 shares $3.97 billion -0.4%N/A5.6 $240.30
8/15/202216,580,000 shares $4.16 billion -4.1%3.1%5.6 $251.08
7/31/202217,280,000 shares $4.28 billion -0.3%3.2%5.6 $247.47
7/15/202217,330,000 shares $4.31 billion +0.6%3.3%5.3 $248.69
6/30/202217,220,000 shares $4.19 billion -7.0%3.2%5.3 $243.30
6/15/202218,510,000 shares $4.36 billion -8.8%3.5%5.7 $235.58
5/31/202220,300,000 shares $5.21 billion +7.7%3.8%6.6 $256.74
5/15/202218,850,000 shares $4.59 billion -5.4%3.5%6 $243.40
4/30/202219,930,000 shares $4.65 billion -4.0%3.7%6 $233.19
4/15/202220,750,000 shares $5.27 billion -7.9%3.9%6.5 $254.02
3/31/202222,520,000 shares $5.45 billion -8.0%4.1%7.1 $241.82
3/15/202224,470,000 shares $5.67 billion -8.1%4.4%7.9 $231.56
2/28/202226,620,000 shares $6.03 billion +124.1%4.8%8.5 $226.48
2/15/202211,880,000 shares $2.66 billion +2.7%2.1%3.9 $223.94
1/31/202211,570,000 shares $2.63 billion -1.7%2.1%3.8 $227.14
1/15/202211,770,000 shares $2.77 billion -2.5%2.1%4.2 $235.36
12/31/202112,070,000 shares $2.72 billion +5.9%2.2%4.3 $224.97
12/15/202111,400,000 shares $2.50 billion -11.9%2.0%3.9 $219.25
11/30/202112,940,000 shares $2.57 billion +11.4%2.3%4.7 $198.88
11/15/202111,620,000 shares $2.41 billion -1.4%2.1%4.4 $207.40
10/29/202111,790,000 shares $2.44 billion +3.6%2.1%4.6 $206.97
10/15/202111,380,000 shares $2.37 billion +2.7%2.0%4.5 $207.84
9/30/202111,080,000 shares $2.36 billion -4.7%2.0%4.5 $212.65
9/15/202111,630,000 shares $2.54 billion +3.8%2.1%4.8 $218.13
8/31/202111,210,000 shares $2.53 billion -0.3%2.0%4.7 $225.53
8/13/202111,240,000 shares $2.58 billion +5.0%2.0%4.6 $229.68
7/30/202110,710,000 shares $2.59 billion +3.6%1.9%4.3 $241.54
7/15/202110,340,000 shares $2.55 billion +10.7%1.8%4 $246.63
6/30/20219,340,000 shares $2.28 billion -6.8%1.6%3.6 $243.75
6/15/202110,020,000 shares $2.40 billion -0.2%1.8%3.9 $239.85
5/28/202110,040,000 shares $2.39 billion -12.4%1.8%3.6 $237.94
5/14/202111,460,000 shares $2.89 billion +8.0%2.0%4.1 $252.07
4/30/202110,610,000 shares $2.49 billion -3.3%1.9%3.9 $234.71
4/15/202110,970,000 shares $2.74 billion -3.7%1.9%4.2 $249.62
3/31/202111,390,000 shares $2.84 billion +15.3%2.0%4.3 $249.75
3/15/20219,880,000 shares $2.28 billion +22.0%1.7%3.6 $230.36
2/26/20218,100,000 shares $1.84 billion -7.0%1.4%3.2 $227.52
2/12/20218,710,000 shares $2.05 billion +15.2%1.5%3.5 $235.04
1/29/20217,560,000 shares $1.87 billion +7.7%1.3%3 $247.75
1/15/20217,020,000 shares $1.70 billion +0.9%1.2%2.8 $241.66
12/31/20206,960,000 shares $1.58 billion +0.7%1.2%2.8 $227.17
12/15/20206,910,000 shares $1.59 billion +6.1%1.2%2.7 $229.46
11/30/20206,510,000 shares $1.46 billion -13.0%1.1%2.5 $224.81
11/15/20207,480,000 shares $1.78 billion +5.2%1.3%2.6 $237.36
10/30/20207,110,000 shares $1.55 billion +5.8%1.2%2.6 $217.82
10/15/20206,720,000 shares $1.60 billion +9.6%1.2%2.5 $237.65
9/30/20206,130,000 shares $1.56 billion -9.5%1.1%2.4 $254.16

AMGN Short Interest - Frequently Asked Questions

What is Amgen's current short interest?

Short interest is the volume of Amgen shares that have been sold short but have not yet been closed out or covered. As of August 31st, traders have sold 11,800,000 shares of AMGN short. 2.20% of Amgen's shares are currently sold short. Learn More on Amgen's current short interest.

What is a good short interest ratio for Amgen?

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. AMGN shares currently have a short interest ratio of 5.0. Learn More on Amgen's short interest ratio.

Which institutional investors are shorting Amgen?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Amgen: Marex Group plc, Hudson Bay Capital Management LP, Nomura Holdings Inc., 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, Tennessee Valley Asset Management Partners, Volterra Technologies LP, Squarepoint Ops LLC, Kopernik Global Investors LLC, Alphadyne Asset Management LP, Diadema Partners LP, Dymon Asia Capital Singapore PTE. LTD., Qube Research & Technologies Ltd, Capula Management Ltd, Marshall Wace LLP, Walleye Capital LLC, Walleye Trading LLC, Lido Advisors LLC, Delta Accumulation LLC, Capital Fund Management S.A., DLD Asset Management LP, All Terrain Financial Advisors LLC, Jefferies Financial Group Inc., Eisler Capital Management Ltd., JPMorgan Chase & Co., Citigroup Inc., Persistent Asset Partners Ltd, Creative Planning, Garda Capital Partners LP, Savant Capital LLC, Mirae Asset Securities USA Inc., Wolverine Asset Management LLC, Insight Advisors LLC PA, Allianz Asset Management GmbH, Twin Tree Management LP, Prime Capital Investment Advisors LLC, and CenterStar Asset Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Amgen?

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. 2.20% of Amgen's floating shares are currently sold short.

Is Amgen's short interest increasing or decreasing?

Amgen saw a increase in short interest in August. As of August 31st, there was short interest totaling 11,800,000 shares, an increase of 8.6% from the previous total of 10,870,000 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.

What is Amgen's float size?

Amgen currently has issued a total of 538,360,000 shares. Some of Amgen's outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Amgen currently has a public float of 537,300,000 shares.

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

2.20% of Amgen's shares are currently sold short. Here is how the short interest of companies in the sector of "medical" compare to Amgen: Gilead Sciences, Inc. (1.42%), Moderna, Inc. (17.42%), Vertex Pharmaceuticals Incorporated (1.42%), 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%), Pfizer Inc. (1.82%), Alnylam Pharmaceuticals, Inc. (3.07%),

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 Amgen stock?

Short selling AMGN is an investing strategy that aims to generate trading profit from Amgen as its price is falling. AMGN shares are trading down $1.99 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 Amgen?

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

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



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This page (NASDAQ:AMGN) was last updated on 9/16/2025 by MarketBeat.com Staff
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