Go Pro
→ Iran just proved America's energy strategy is broken (From Behind the Markets) (Ad)tc pixel Free VSTM Stock Alerts

Verastem (VSTM) Short Interest Ratio & Short Volume

Verastem logo
$4.50 0.00 (0.00%)
Closing price 07/2/2026 04:00 PM Eastern
Extended Trading
$4.49 -0.01 (-0.22%)
As of 07/2/2026 06:41 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.
Compare

Verastem Short Interest Overview

As of June 15, 2026, Verastem (VSTM) had a short interest of 21.77 million shares sold short, representing 25.27% of the public float. This marks a 2.65% increase in short interest since the prior report. The short interest ratio (days to cover) is 8.9, meaning it would take 8.9 days of the average trading volume of 2.64 million shares to cover all short positions.

Current Short Interest
21,774,894 shares
Previous Short Interest
21,213,623 shares
Change Vs. Previous Month
2.65%
Dollar Volume Sold Short
$87.10 million
Short Interest Ratio
8.9 Days to Cover
Last Record Date
June 15, 2026
Outstanding Shares
87,870,000 shares
Short Percent of Float
25.27%
Today's Trading Volume
2,967,546 shares
Average Trading Volume
2,642,443 shares
Today's Volume Vs. Average
112%
Short Selling Verastem?
A Guide To High-Short-Interest Stocks

Sign up to receive the latest short interest report for Verastem and its competitors with MarketBeat's FREE newsletter.

Get Report
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Charts & View Short Interest History
Short Interest ChartDays to Cover ChartShort Percent of Float Chart

VSTM Short Interest Over Time

VSTM Days to Cover Over Time

VSTM Percentage of Float Shorted Over Time

Verastem Tesla Short Interest History & Recent Changes

Export
Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
6/15/202621,774,894 shares $87.10 million +2.7%25.3%8.89 $4.00
5/29/202621,213,623 shares $91.85 million +18.7%24.6%10.13 $4.33
5/15/202617,870,249 shares $77.20 million +2.0%20.7%6.99 $4.32
4/30/202617,523,588 shares $95.68 million +0.6%20.3%8.78 $5.46
4/15/202617,417,758 shares $110.25 million +6.4%20.2%9 $6.33
3/31/202616,365,830 shares $86.74 million -8.3%19.0%6.07 $5.30
3/13/202617,851,179 shares $99.97 million +4.4%20.8%10.52 $5.60
2/27/202617,095,624 shares $97.79 million -5.3%26.2%13.54 $5.72
2/13/202618,052,448 shares $105.07 million +9.7%21.0%10.57 $5.82
1/30/202616,459,027 shares $100.40 million -3.8%25.2%10.04 $6.10
1/15/202617,115,556 shares $112.96 million +0.6%26.2%7.18 $6.60
12/31/202517,017,419 shares $131.37 million +1.8%26.0%9.3 $7.72
12/15/202516,721,345 shares $155.01 million -9.1%25.6%10.74 $9.27
11/28/202518,393,487 shares $196.06 million -3.9%28.1%6.45 $10.66
11/14/202519,141,071 shares $144.52 million +8.6%29.3%7.18 $7.55
10/31/202517,632,734 shares $166.63 million -2.6%27.0%6.68 $9.45
10/15/202518,090,000 shares $170.05 million +3.6%31.7%7.2 $9.40
9/30/202517,470,000 shares $154.26 million +3.9%30.6%7.2 $8.83
9/15/202516,820,000 shares $165.17 million +5.4%29.5%6.4 $9.82
8/31/202515,960,000 shares $147.63 million No Change28.2%6 $9.25
8/15/202515,960,000 shares $131.19 million -6.4%28.2%5.8 $8.22
7/31/202517,050,000 shares $105.20 million -5.9%31.1%6.7 $6.17
7/15/202518,110,000 shares $88.56 million +48,978.6%37.0%8 $4.89
6/30/202536,900 shares $153.14 thousand -99.7%0.7%0.8 $4.15
6/15/202512,180,000 shares $68.21 million -7.6%24.9%6.7 $5.60
5/31/202513,180,000 shares $98.19 million -0.8%27.2%8.4 $7.45
5/15/202513,280,000 shares $105.31 million +42.5%27.4%10 $7.93
4/30/20259,320,000 shares $69.81 million +5.7%20.4%9.4 $7.49
4/15/20258,820,000 shares $42.42 million +11.9%19.3%9.7 $4.81
3/31/20257,880,000 shares $47.52 million +7.7%17.3%8.7 $6.03
3/15/20257,320,000 shares $50.95 million +22.8%16.0%5.5 $6.96
2/28/20255,960,000 shares $33.32 million +6.8%15.1%4.5 $5.59
2/15/20255,580,000 shares $33.31 million +6.5%14.1%4.1 $5.97
1/31/20255,240,000 shares $31.86 million +6.3%13.3%3.6 $6.08
1/15/20254,930,000 shares $26.18 million +59.6%12.5%3.3 $5.31
12/31/20243,090,000 shares $15.98 million +17.9%7.8%2 $5.17
12/15/20242,620,000 shares $11.74 million +31.0%6.6%2.7 $4.48
11/30/20242,000,000 shares $10.68 million -15.3%5.1%2 $5.34
11/15/20242,360,000 shares $9.42 million -4.1%6.0%2.9 $3.99
10/31/20242,460,000 shares $9.25 million +0.8%6.1%3.3 $3.76
New "AI Fuel" discovered near Grand Canyon (Ad)

A drilling crew near the Grand Canyon just uncovered an energy source the International Energy Agency says is large enough to meet global electricity demand 140 times over. Google, Berkshire Hathaway, and the President of the United States are all reportedly moving to secure access to this resource - and it may be the most significant development yet in the AI energy race.tc pixel

Find out why Big Tech is scrambling to lock this up now
10/15/20242,440,000 shares $7.64 million +3.8%6.7%3.5 $3.13
9/30/20242,350,000 shares $7.03 million +14.1%6.4%4 $2.99
9/15/20242,060,000 shares $5.79 million -1.9%5.6%3.2 $2.81
8/31/20242,100,000 shares $5.25 million +6.6%5.7%3.3 $2.50
8/15/20241,970,000 shares $4.59 million +7.1%5.4%1.8 $2.33
7/31/20241,840,000 shares $4.78 million -18.9%5.9%1.8 $2.60
7/15/20242,270,000 shares $7.65 million +77.3%11.2%2.5 $3.37
6/30/20241,280,000 shares $3.81 million -3.0%6.3%1.6 $2.98
6/15/20241,320,000 shares $4.58 million -44.5%6.5%1.9 $3.47
5/31/20242,380,000 shares $9.42 million +193.9%11.6%3.8 $3.96
5/15/2024809,700 shares $10.62 million -1.9%3.9%1.8 $13.12
4/30/2024825,400 shares $8.24 million +2.4%3.5%6 $9.98
4/15/2024806,400 shares $8.93 million +27.1%3.9%5.6 $11.07
3/31/2024634,500 shares $7.49 million -17.9%3.1%4.3 $11.80
3/15/2024773,100 shares $8.50 million +1.3%3.8%5.4 $11.00
2/29/2024762,900 shares $9.51 million +4.4%3.7%6 $12.46
2/15/2024730,600 shares $8.58 million +36.2%3.8%6.3 $11.74
1/31/2024536,300 shares $6.30 million +21.9%2.8%5.7 $11.75
1/15/2024439,800 shares $4.83 million +14.2%2.3%5.4 $10.99
12/31/2023385,100 shares $3.13 million +13.2%2.0%5.2 $8.14
12/15/2023340,300 shares $2.59 million -34.2%1.8%4.5 $7.61
11/30/2023516,800 shares $3.56 million +7.0%2.7%6.3 $6.89
11/15/2023483,000 shares $2.97 million -15.0%2.5%6 $6.14
10/31/2023568,300 shares $3.57 million +18.2%3.0%5.9 $6.28
10/15/2023480,900 shares $3.80 million -18.1%2.5%4.1 $7.91
9/30/2023587,200 shares $4.77 million +23.2%3.1%4 $8.13
9/15/2023476,500 shares $4.72 million +1.1%2.5%2.4 $9.90
8/31/2023471,400 shares $4.60 million -1.2%2.3%2 $9.76
8/15/2023477,100 shares $4.56 million +19.8%2.3%1.2 $9.55
7/31/2023398,200 shares $4.40 million +64.8%1.8%1 $11.06
7/15/2023241,600 shares $2.19 million -19.5%1.0%0.7 $9.08
6/30/2023300,000 shares $2.23 million +50.2%1.3%0.9 $7.44
6/15/2023199,800 shares $2.16 million -9.6%0.9%0.7 $10.82
5/31/2023221,100 shares $2.71 million -77.5%1.5%1 $12.24
5/15/2023981,400 shares $411.40 thousand -21.5%N/A1.5 $0.42
4/30/20231,250,000 shares $488.25 thousand +15.7%N/A2 $0.39
4/15/20231,080,000 shares $423.25 thousand -15.0%N/A1.6 $0.39
3/31/20231,270,000 shares $527.30 thousand -21.6%N/A1.7 $0.42
3/15/20231,620,000 shares $696.60 thousand +39.7%N/A2.1 $0.43
2/28/20231,160,000 shares $602.85 thousand +5.5%N/A1.3 $0.52
2/15/20231,100,000 shares $651.97 thousand -5.2%N/A1.2 $0.59
1/31/20231,160,000 shares $750.40 thousand +0.9%N/A1.2 $0.65
1/15/20231,150,000 shares $698.51 thousand -40.7%N/A0.9 $0.61
12/30/20221,940,000 shares $780.85 thousand +1.6%N/A1.3 $0.40
12/15/20221,910,000 shares $798.38 thousand -18.4%N/A1.2 $0.42
11/30/20222,340,000 shares $1.08 million +2.6%N/A1.4 $0.46
11/15/20222,280,000 shares $956.46 thousand -42.7%N/A1.5 $0.42
10/31/20223,980,000 shares $1.67 million +45.8%N/A2.1 $0.42
10/15/20222,730,000 shares $984.17 thousand -19.2%N/A1.6 $0.36
9/30/20223,380,000 shares $2.87 million +4.3%N/A2.4 $0.85
Buy this stock today (Ad)

Marc Chaikin, founder of Chaikin Analytics, is sharing a strategy he calls 'Sell This, Buy That' - a way to move out of overpriced AI stocks before the tech trade breaks down and into lesser-known names with real potential to challenge the Mag 7. One pick he calls 'an upgrade to Tesla stock' is a little-known company that just inked a partnership with Nvidia, positioning it ahead of Tesla in the autonomous vehicle race.tc pixel

Get the name, ticker, and full Hotlist before markets open
9/15/20223,240,000 shares $3.92 million +0.6%N/A2 $1.21
8/31/20223,220,000 shares $3.74 million -4.2%N/A1.8 $1.16
8/15/20223,360,000 shares $4.60 million -18.5%N/A1.7 $1.37
7/31/20224,120,000 shares $4.41 million -6.2%N/A2.3 $1.07
7/15/20224,390,000 shares $4.87 million -9.5%N/A2.4 $1.11
6/30/20224,850,000 shares $5.63 million -40.6%N/A2 $1.16
6/15/20228,160,000 shares $8.65 million +5.8%12.0%3.2 $1.06
5/31/20227,710,000 shares $9.87 million +1.7%N/A3.2 $1.28
5/15/20227,580,000 shares $8.19 million +2.9%N/A3.3 $1.08
4/30/20227,370,000 shares $10.47 million +22.8%N/A3.3 $1.42
4/15/20226,000,000 shares $10.62 million -6.7%N/A2.6 $1.77
3/31/20226,430,000 shares $9.07 million -31.2%N/A3.5 $1.41
3/15/20229,340,000 shares $10.93 million +4.4%N/A5.3 $1.17
2/28/20228,950,000 shares $10.74 million +1.2%N/A5.5 $1.20
2/15/20228,840,000 shares $12.20 million +9.4%N/A5.3 $1.38
1/31/20228,080,000 shares $12.36 million +28.3%N/A4.6 $1.53
1/15/20226,300,000 shares $11.34 million +9.0%N/A3.7 $1.80
12/31/20215,780,000 shares $11.85 million -15.0%N/A0 $2.05
12/15/20216,800,000 shares $16.05 million -2.6%N/A4.1 $2.36
11/30/20216,980,000 shares $18.64 million +1.5%N/A3.1 $2.67
11/15/20216,880,000 shares $21.40 million -5.9%N/A3 $3.11
10/29/20217,310,000 shares $19.01 million -2.3%N/A3.3 $2.60
10/15/20217,480,000 shares $20.64 million -12.2%N/A3.3 $2.76
9/30/20218,520,000 shares $26.24 million +49.2%N/A3.8 $3.08
9/15/20215,710,000 shares $14.56 million -14.3%N/A2.5 $2.55
8/31/20216,660,000 shares $17.65 million -12.5%N/A3.4 $2.65
8/13/20217,610,000 shares $21.16 million No ChangeN/A2.9 $2.78
7/30/20217,610,000 shares $24.58 million -46.1%N/A2.9 $3.23
7/15/202114,130,000 shares $49.88 million +5.6%8.4%5 $3.53

VSTM Short Interest - Frequently Asked Questions

Short interest is the volume of Verastem shares that have been sold short but have not yet been covered or closed out. As of June 15th, traders have sold 21,774,894 shares of VSTM short. 25.27% of Verastem's shares are currently sold short. Learn More on Verastem'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. VSTM shares currently have a short interest ratio of 8.9. Learn More on Verastem's short interest ratio.

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. 25.27% of Verastem's floating shares are currently sold short.

Verastem saw a increase in short interest during the month of June. As of June 15th, there was short interest totaling 21,774,894 shares, an increase of 2.6% from the previous total of 21,213,623 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.

25.27% of Verastem's shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to Verastem: MannKind Corporation (10.39%), OPKO Health, Inc. (7.86%), Lexicon Pharmaceuticals, Inc. (6.66%), Geron Corporation (11.87%), Rigel Pharmaceuticals, Inc. (20.88%), Ironwood Pharmaceuticals, Inc. (10.75%), Achieve Life Sciences, Inc. (8.16%), Myriad Genetics, Inc. (9.34%), XOMA Royalty Corporation (7.87%), Crescent Biopharma, Inc. (12.65%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($77.25 billion), Invesco QQQ ($51.70 billion), iShares Russell 2000 ETF ($25.75 billion), Sandisk Corporation ($23.00 billion), Western Digital Corporation ($17.29 billion), Nebius Group N.V. ($13.25 billion), SPDR S&P Biotech ETF ($10.78 billion), KLA Corporation ($10.45 billion), Salesforce Inc. ($9.71 billion), and VanEck Semiconductor ETF ($9.01 billion). View all of the most shorted stocks.

Short selling VSTM is an investing strategy that aims to generate trading profit from Verastem as its price is falling. 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 Verastem 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 VSTM, 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 VSTM, twice per month. The most recent reporting period available is June, 15 2026.

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

  • 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
Short Interest Tools

This page (NASDAQ:VSTM) was last updated on 6/25/2026 by MarketBeat.com Staff.
From Our Partners
The Starlink of Energy
A portable energy unit - already used by the U.S. Navy for decades - is now drawing serious attention from Big...
Monument Traders Alliance | Sponsoredtc pixel
The REAL Reason Trump is Invading Iran
For a moment… Forget about Trump’s ties to Israel. Forget about reports of Iran’s nuclear program. Be...
Banyan Hill Publishing | Sponsoredtc pixel
Buy the “unseen winner of the AI race” before July 22
Marc Chaikin - the analyst who called Nvidia before a 45,000% surge - says one overlooked AI stock could split...
Chaikin Analytics | Sponsoredtc pixel
Trump Takes Emergency Action - Plus Elon Musk's New Venture
Elon Musk has quietly launched a new venture - one that has nothing to do with rockets, EVs, or Neuralink. Tru...
Altimetry | Sponsoredtc pixel
PH: Do THESE 4 things to your bank account now …
In a few short months, the US government could gain unprecedented powers over personal bank accounts - includi...
Weiss Ratings | Sponsoredtc pixel
They proved it worked in '76. Then buried it.
In 1976, Chevron, Unocal, and Texaco each confirmed the same energy technology worked - no fuel costs, no carb...
Behind the Markets | Sponsoredtc pixel
**MARKET CRASH WARNING**
A former advisor to the Pentagon and CIA is warning that an 80% Dow drop could arrive within days - and names ...
Paradigm Press | Sponsoredtc pixel
Print this before your next trade
Bill Poulos is offering his Smart Trade Options Checklist at no cost today - normally priced at $29.97. It'...
Profits Run | Sponsoredtc pixel