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Gritstone bio (GRTS) Short Interest Ratio & Short Volume

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Gritstone bio Short Interest Data

Gritstone bio (GRTS) has a short interest of 7.53 million shares, representing 6.83% of the float (the number of shares available for trading by the public). This marks a 13.57% increase in short interest from the previous month. The short interest ratio (days to cover) is 3.6, indicating that it would take 3.6 days of the average trading volume of 7.01 million shares to cover all short positions.

Current Short Interest
7,530,000 shares
Previous Short Interest
6,630,000 shares
Change Vs. Previous Month
+13.57%
Dollar Volume Sold Short
$4.37 million
Short Interest Ratio
3.6 Days to Cover
Last Record Date
September 30, 2024
Outstanding Shares
108,569,000 shares
Float Size
110,210,000 shares
Short Percent of Float
6.83%
Today's Trading Volume
61,017,902 shares
Average Trading Volume
7,014,435 shares
Today's Volume Vs. Average
870%
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GRTS Short Interest Over Time

GRTS Days to Cover Over Time

GRTS Percentage of Float Shorted Over Time

Gritstone bio Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
9/30/20247,530,000 shares $4.37 million +13.6%6.8%3.6 $0.58
9/15/20246,630,000 shares $3.65 million -4.3%6.0%5.3 $0.55
8/31/20246,930,000 shares $3.30 million -3.5%6.3%5.6 $0.48
8/15/20247,180,000 shares $3.81 million -8.5%6.6%5.1 $0.53
7/31/20247,850,000 shares $4.72 million -3.0%7.9%4.8 $0.60
7/15/20248,090,000 shares $5.32 million -26.9%8.1%4.5 $0.66
6/30/202411,070,000 shares $6.84 million No Change11.1%5 $0.62
6/15/202411,070,000 shares $8.66 million -4.5%11.1%4 $0.78
5/31/202411,590,000 shares $8.97 million -8.7%11.7%4.1 $0.77
5/15/202412,690,000 shares $9.52 million -16.0%12.8%4.3 $0.75
4/30/202415,110,000 shares $12.09 million +18.1%15.4%5.3 $0.80
4/15/202412,800,000 shares $9.46 million +40.4%13.2%4.4 $0.74
3/31/20249,120,000 shares $23.44 million +3.4%9.4%3.3 $2.57
3/15/20248,820,000 shares $20.99 million +7.3%9.9%4.3 $2.38
2/29/20248,220,000 shares $23.02 million -10.1%9.2%4 $2.80
2/15/20249,140,000 shares $19.93 million +1.7%10.5%4.9 $2.18
1/31/20248,990,000 shares $21.49 million -4.3%10.4%4.9 $2.39
1/15/20249,390,000 shares $26.48 million +4.9%10.7%5.9 $2.82
12/31/20238,950,000 shares $18.26 million +2.9%10.2%4.9 $2.04
12/15/20238,700,000 shares $16.53 million -4.5%9.9%3.3 $1.90
11/30/20239,110,000 shares $11.84 million +8.2%10.4%3.7 $1.30
11/15/20238,420,000 shares $12.12 million -7.7%9.6%3.7 $1.44
10/31/20239,120,000 shares $17.33 million -3.9%10.8%4.3 $1.90
10/15/20239,490,000 shares $22.30 million +16.2%11.2%4.6 $2.35
9/30/20238,170,000 shares $14.05 million +14.4%9.7%4.7 $1.72
9/15/20237,140,000 shares $11.00 million -4.0%8.5%15.2 $1.54
8/31/20237,440,000 shares $13.54 million -2.5%8.9%10.3 $1.82
8/15/20237,630,000 shares $13.20 million +3.0%9.1%9.4 $1.73
7/31/20237,410,000 shares $14.60 million -7.1%9.6%8.6 $1.97
7/15/20237,980,000 shares $16.92 million +3.6%10.3%9.4 $2.12
6/30/20237,700,000 shares $15.02 million +58.8%9.9%8.7 $1.95
6/15/20234,850,000 shares $10.96 million +10.2%6.3%5.6 $2.26
5/31/20234,400,000 shares $8.49 million +11.4%5.8%6.8 $1.93
5/15/20233,950,000 shares $8.16 million No Change5.2%6.8 $2.07
10/31/20225,800,000 shares $18.68 million +8.4%N/A6.3 $3.22
10/15/20225,350,000 shares $12.63 million -2.0%N/A6.6 $2.36
9/30/20225,460,000 shares $14.03 million +9.2%N/A6.6 $2.57
9/15/20225,000,000 shares $20 million +11.4%N/A5.2 $4.00
8/31/20224,490,000 shares $14.77 million +104.1%N/A4.2 $3.29
8/15/20222,200,000 shares $8.95 million -9.8%N/A1.9 $4.07
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7/31/20222,440,000 shares $6.20 million +3.0%N/A2.3 $2.54
7/15/20222,370,000 shares $6.35 million -15.7%N/A2.1 $2.68
6/30/20222,810,000 shares $6.80 million -23.9%N/A2.3 $2.42
6/15/20223,690,000 shares $8.08 million -11.9%N/A2.8 $2.19
5/31/20224,190,000 shares $8.46 million +5.8%N/A3.2 $2.02
5/15/20223,960,000 shares $8.59 million +25.3%N/A3 $2.17
4/30/20223,160,000 shares $8.18 million -3.7%N/A2.4 $2.59
4/15/20223,280,000 shares $12.10 million +0.6%N/A2.5 $3.69
3/31/20223,260,000 shares $13.43 million -24.5%N/A2.2 $4.12
3/15/20224,320,000 shares $19.22 million +3.6%N/A2.3 $4.45
2/28/20224,170,000 shares $21.27 million -16.4%N/A2.2 $5.10
2/15/20224,990,000 shares $27.89 million +1.0%N/A2.4 $5.59
1/31/20224,940,000 shares $26.97 million +10.8%N/A2.5 $5.46
1/15/20224,460,000 shares $27.88 million +15.3%N/A2.2 $6.25
12/31/20213,870,000 shares $49.77 million +73.5%N/A2.1 $12.86
12/15/20212,230,000 shares $26.98 million +20.5%N/A1.7 $12.10
11/30/20211,850,000 shares $24.42 million +5.1%N/A1.5 $13.20
11/15/20211,760,000 shares $19.78 million -15.4%N/A1.7 $11.24
10/29/20212,080,000 shares $22.86 million +18.9%N/A2 $10.99
10/15/20211,750,000 shares $16.08 million -52.7%N/A1.7 $9.19
9/30/20213,700,000 shares $39.96 million -44.4%9.4%4 $10.80
9/15/20216,660,000 shares $85.18 million +5.2%15.8%7.5 $12.79
8/31/20216,330,000 shares $58.24 million +5.3%15.0%9.4 $9.20
8/13/20216,010,000 shares $48.62 million +8.5%14.4%9.8 $8.09
7/30/20215,540,000 shares $37.01 million +8.8%13.4%10.3 $6.68
7/15/20215,090,000 shares $38.79 million +5.6%12.4%11.4 $7.62
6/30/20214,820,000 shares $44.01 million +5.7%11.7%9.6 $9.13
6/15/20214,560,000 shares $44.41 million -3.4%11.1%6.3 $9.74
5/28/20214,720,000 shares $43.42 million +12.4%11.5%6.3 $9.20
5/14/20214,200,000 shares $34.23 million +0.5%N/A5.5 $8.15
4/30/20214,180,000 shares $38.54 million -0.5%N/A4.9 $9.22
4/15/20214,200,000 shares $35.99 million +34.2%N/A3.3 $8.57
3/31/20213,130,000 shares $27.64 million +1.6%8.8%1 $8.83
3/15/20213,080,000 shares $46.05 million +0.3%8.7%1 $14.95
2/26/20213,070,000 shares $40.74 million +8.1%9.1%1 $13.27
2/12/20212,840,000 shares $41.35 million +123.6%8.4%0.9 $14.56
1/29/20211,270,000 shares $21.79 million -27.4%3.7%0.4 $17.16
1/15/20211,750,000 shares $10.42 million +4.8%5.3%0.6 $5.96
12/31/20201,670,000 shares $6.83 million -10.2%5.2%4.1 $4.09
12/15/20201,860,000 shares $5.67 million -13.1%7.4%6.2 $3.05
11/30/20202,140,000 shares $7.00 million +10.3%8.5%7.5 $3.27
11/15/20201,940,000 shares $5.37 million -2.5%7.7%6.8 $2.77
10/30/20201,990,000 shares $5.53 million +1.0%7.9%6.7 $2.78
10/15/20201,970,000 shares $5.89 million -15.8%8.1%5.2 $2.99
9/30/20202,340,000 shares $6.20 million -2.5%9.7%3.2 $2.65
9/15/20202,400,000 shares $7.63 million +15.4%9.9%3 $3.18
8/31/20202,080,000 shares $6.88 million +3.0%8.6%2.7 $3.31
8/14/20202,020,000 shares $7.15 million -23.5%8.4%2.7 $3.54
7/31/20202,640,000 shares $8.45 million -7.7%11.6%3.6 $3.20
7/15/20202,860,000 shares $11.13 million -14.9%12.8%4.4 $3.89
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6/30/20203,360,000 shares $22.44 million -2.6%15.0%11.1 $6.68
6/15/20203,450,000 shares $21.91 million +0.3%15.4%16.9 $6.35
5/29/20203,440,000 shares $22.60 million -5.0%15.4%18.5 $6.57

GRTS Short Interest - Frequently Asked Questions

What is Gritstone bio's current short interest?

Short interest is the volume of Gritstone bio shares that have been sold short but have not yet been covered or closed out. As of September 30th, traders have sold 7,530,000 shares of GRTS short. 6.83% of Gritstone bio's shares are currently sold short. Learn More on Gritstone bio's current short interest.

What is a good short interest ratio for Gritstone bio?

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. GRTS shares currently have a short interest ratio of 4.0. Learn More on Gritstone bio's short interest ratio.

Which institutional investors are shorting Gritstone bio?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Gritstone bio: Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Gritstone bio?

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. 6.83% of Gritstone bio's floating shares are currently sold short.

Is Gritstone bio's short interest increasing or decreasing?

Gritstone bio saw a increase in short interest during the month of September. As of September 30th, there was short interest totaling 7,530,000 shares, an increase of 13.6% from the previous total of 6,630,000 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 Gritstone bio's float size?

Gritstone bio currently has issued a total of 108,569,000 shares. Some of Gritstone bio'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. Gritstone bio currently has a public float of 110,210,000 shares.

How does Gritstone bio's short interest compare to its competitors?

6.83% of Gritstone bio's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Gritstone bio: Unity Biotechnology, Inc. (5.46%), MEI Pharma, Inc. (0.03%), Upexi, Inc. (36.93%), Equillium, Inc. (0.81%), ProPhase Labs, Inc. (1.10%), 23andMe Holding Co. (11.90%), Flora Growth Corp. (1.50%), Synlogic, Inc. (0.44%), Marker Therapeutics, Inc. (1.60%), NextCure, Inc. (0.84%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: Charter Communications, Inc. ($4.04 billion), AppLovin Co. ($2.69 billion), Nu Holdings Ltd. ($2.64 billion), Paychex, Inc. ($2.61 billion), Cencora, Inc. ($2.30 billion), Aptiv PLC ($2.09 billion), Moderna, Inc. ($2.09 billion), Tractor Supply ($2.04 billion), Coinbase Global, Inc. ($1.97 billion), and International Paper ($1.95 billion). View all of the most shorted stocks.

What does it mean to sell short Gritstone bio stock?

Short selling GRTS is an investing strategy that aims to generate trading profit from Gritstone bio 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.

How does a short squeeze work against Gritstone bio?

A short squeeze for Gritstone bio 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 GRTS, which in turn drives the price of the stock up even further.

How often is Gritstone bio'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 GRTS, twice per month. The most recent reporting period available is September, 30 2024.




This page (NASDAQ:GRTS) was last updated on 5/28/2025 by MarketBeat.com Staff
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