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ESS Tech (GWH) Short Interest Ratio & Short Volume

ESS Tech logo
$0.78 -0.03 (-3.61%)
As of 12:01 PM Eastern
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ESS Tech Short Interest Overview

As of April 30, 2026, ESS Tech (GWH) had a short interest of 1.58 million shares sold short, representing 5.91% of the public float. This marks a -21.91% decrease in short interest since the prior report. The short interest ratio (days to cover) is 3.1, meaning it would take 3.1 days of the average trading volume of 621,182 shares to cover all short positions.

Current Short Interest
1,582,776 shares
Previous Short Interest
2,026,917 shares
Change Vs. Previous Month
-21.91%
Dollar Volume Sold Short
$1.75 million
Short Interest Ratio
3.1 Days to Cover
Last Record Date
April 30, 2026
Outstanding Shares
27,174,000 shares
Short Percent of Float
5.91%
Today's Trading Volume
431,858 shares
Average Trading Volume
621,182 shares
Today's Volume Vs. Average
70%
Short Selling ESS Tech?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

GWH Short Interest Over Time

GWH Days to Cover Over Time

GWH Percentage of Float Shorted Over Time

ESS Tech Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
4/30/20261,582,776 shares $1.75 million -21.9%5.9%3.1 $1.11
4/15/20262,026,917 shares $2.36 million +24.5%7.6%5.82 $1.17
3/31/20261,627,846 shares $1.91 million +12.6%6.1%5.61 $1.18
3/13/20261,445,166 shares $1.81 million +29.6%5.4%1.36 $1.26
2/27/20261,114,977 shares $1.76 million +28.1%4.9%2.83 $1.58
2/13/2026870,715 shares $1.25 million -5.8%3.8%2.33 $1.43
1/30/2026923,973 shares $1.62 million +89.3%4.0%1.23 $1.75
1/15/2026488,204 shares $869.00 thousand +1.8%2.5%0.98 $1.78
12/31/2025479,829 shares $882.89 thousand -14.5%2.5%1.19 $1.84
12/15/2025561,306 shares $1.10 million -19.2%2.9%1.29 $1.97
11/28/2025694,329 shares $1.86 million -45.3%3.6%1.24 $2.69
11/14/20251,270,373 shares $3.57 million +8.0%6.6%1.58 $2.81
10/31/20251,175,794 shares $4.88 million -55.9%8.2%0.26 $4.15
10/15/20252,670,000 shares $16.38 million +151.9%26.9%0.3 $6.14
9/30/20251,060,000 shares $1.60 million +6.0%12.0%2.8 $1.51
9/15/20251,000,000 shares $1.39 million -3.9%11.8%3.1 $1.39
8/31/20251,040,000 shares $1.52 million +10.4%12.2%3.4 $1.47
8/15/2025942,200 shares $1.64 million +3.7%11.0%1 $1.74
7/31/2025908,300 shares $1.73 million -11.8%11.2%1 $1.91
7/15/20251,030,000 shares $1.33 million +7.8%18.5%1.1 $1.29
6/30/2025955,600 shares $1.28 million -2.9%19.2%1.2 $1.34
6/15/2025984,400 shares $1.03 million +51.4%19.8%1.3 $1.05
5/31/2025650,100 shares $1.11 million +19.8%13.1%0.9 $1.71
5/15/2025542,500 shares $1.42 million +18.7%10.9%7.7 $2.62
4/30/2025457,100 shares $1.01 million +19.7%9.2%7.1 $2.21
4/15/2025382,000 shares $888.15 thousand -0.2%7.7%5.6 $2.33
3/31/2025382,900 shares $1.23 million +7.4%7.5%5.2 $3.22
3/15/2025356,500 shares $1.16 million -17.5%7.1%4.5 $3.26
2/28/2025432,300 shares $1.57 million +15.8%8.6%5 $3.63
2/15/2025373,200 shares $1.50 million -7.9%7.4%4.4 $4.01
1/31/2025405,100 shares $2.22 million +1.1%8.0%4.4 $5.49
1/15/2025400,800 shares $2.05 million +4.4%7.9%4.2 $5.12
12/31/2024384,100 shares $2.26 million +8.3%7.6%4 $5.88
12/15/2024354,700 shares $1.81 million -15.3%7.0%4 $5.09
11/30/2024418,900 shares $2.62 million +20.3%8.3%4.8 $6.26
11/15/2024348,200 shares $1.82 million -27.9%6.9%3.5 $5.23
10/31/2024483,100 shares $3.62 million -0.5%9.3%5.7 $7.50
10/15/2024485,700 shares $3.82 million +8.3%9.7%6.3 $7.86
9/30/2024448,600 shares $2.84 million +30.1%9.0%6.1 $6.32
9/15/2024344,800 shares $1.87 million -14.7%6.9%4 $5.42
8/31/2024404,300 shares $3.03 million -10.9%8.2%5.1 $7.49
8/15/2024453,700 shares $264.33 thousand -93.0%0.7%7 $0.58
7/31/20246,440,000 shares $4.82 million +13.8%9.8%7.3 $0.75
7/15/20245,660,000 shares $4.86 million -32.9%10.0%6.4 $0.86
6/30/20248,440,000 shares $6.90 million +4.7%14.8%9.9 $0.82
6/15/20248,060,000 shares $6.04 million -21.2%14.2%10.8 $0.75
5/31/202410,230,000 shares $7.64 million +17.7%18.0%12.2 $0.75
5/15/20248,690,000 shares $6.79 million -10.0%15.3%10.5 $0.78
4/30/20249,660,000 shares $7.43 million -11.1%16.6%11.3 $0.77
4/15/202410,860,000 shares $7.23 million -13.2%18.6%12.1 $0.67
3/31/202412,510,000 shares $9.05 million +5.5%21.4%13.1 $0.72
3/15/202411,860,000 shares $8.33 million +0.1%20.8%11.3 $0.70
2/29/202411,850,000 shares $10.39 million +8.4%21.0%12.1 $0.88
2/15/202410,930,000 shares $10.84 million +4.8%19.4%10.8 $0.99
1/31/202410,430,000 shares $10.74 million -8.8%19.1%9.7 $1.03
1/15/202411,430,000 shares $11.54 million -10.8%21.3%10 $1.01
12/31/202312,820,000 shares $14.61 million +16.1%23.9%10.8 $1.14
12/15/202311,040,000 shares $13.36 million -3.0%20.6%8.2 $1.21
11/30/202311,380,000 shares $13.37 million +3.7%28.2%8.4 $1.18
11/15/202310,970,000 shares $13.82 million +14.8%27.2%7.9 $1.26
10/31/20239,560,000 shares $11.47 million +7.4%26.2%6.4 $1.20
10/15/20238,900,000 shares $16.91 million -3.3%24.4%6.1 $1.90
9/30/20239,200,000 shares $17.30 million +14.9%25.2%6.2 $1.88
9/15/20238,010,000 shares $12.18 million +1.8%15.1%5.8 $1.52
8/31/20237,870,000 shares $11.25 million +3.8%15.1%6.1 $1.43
8/15/20237,580,000 shares $9.74 million +3.3%14.5%5.7 $1.29
7/31/20237,340,000 shares $14.13 million +7.3%14.1%4.4 $1.93
7/15/20236,840,000 shares $12.18 million -5.4%13.2%4.3 $1.78
6/30/20237,230,000 shares $10.63 million +4.2%14.0%4.8 $1.47
6/15/20236,940,000 shares $10.17 million -11.4%13.5%4.8 $1.47
5/31/20237,830,000 shares $9.00 million -9.7%15.2%5.3 $1.15
5/15/20238,670,000 shares $7.45 million -7.7%16.6%5.5 $0.86
4/30/20239,390,000 shares $10.05 million +1.8%18.0%8.2 $1.07
4/15/20239,220,000 shares $11.62 million -0.9%17.5%7.2 $1.26
3/31/20239,300,000 shares $12.93 million +8.6%17.9%6.9 $1.39
3/15/20238,560,000 shares $9.16 million +0.8%17.0%5.9 $1.07
2/28/20238,490,000 shares $15.45 million -6.3%16.6%5.9 $1.82
2/15/20239,060,000 shares $21.02 million -14.2%17.9%6.4 $2.32
1/31/202310,560,000 shares $23.34 million -3.9%22.2%7.3 $2.21
1/15/202310,990,000 shares $27.15 million -2.7%24.6%7.9 $2.47
12/30/202211,300,000 shares $27.46 million +3.0%25.3%7.8 $2.43
12/15/202210,970,000 shares $27.86 million +7.2%24.6%7.8 $2.54
11/30/202210,230,000 shares $32.94 million +5.5%22.9%7.2 $3.22
11/15/20229,700,000 shares $39.38 million +5.4%21.7%7.3 $4.06
10/31/20229,200,000 shares $38.92 million +8.9%19.6%7.1 $4.23
10/15/20228,450,000 shares $34.05 million +6.3%18.0%6.8 $4.03
9/30/20227,950,000 shares $32.52 million +31.8%17.0%7 $4.09
9/15/20226,030,000 shares $28.64 million -8.9%12.9%4.9 $4.75
8/31/20226,620,000 shares $29.39 million -7.2%14.3%5.4 $4.44
8/15/20227,130,000 shares $35.08 million +8.9%15.4%5.5 $4.92
7/31/20226,550,000 shares $24.89 million -7.6%14.2%4.7 $3.80
7/15/20227,090,000 shares $22.12 million -1.3%15.4%5.1 $3.12
6/30/20227,180,000 shares $20.18 million +37.6%15.5%5.2 $2.81
6/15/20225,220,000 shares $17.28 million +9.2%11.3%3.7 $3.31
5/31/20224,780,000 shares $19.74 million +3.5%10.3%3.9 $4.13
5/15/20224,620,000 shares $22.87 million -10.5%10.0%4.1 $4.95
4/30/20225,160,000 shares $28.74 million +7.3%11.1%5.8 $5.57
4/15/20224,810,000 shares $28.23 million -2.8%10.4%5.2 $5.87
3/31/20224,950,000 shares $27.57 million +24.7%10.8%5.6 $5.57
3/15/20223,970,000 shares $16.87 million -3.4%8.7%4.9 $4.25
2/28/20224,110,000 shares $21.33 million +30.5%9.0%5.4 $5.19
2/15/20223,150,000 shares $16.13 million +30.2%30.6%4.1 $5.12
1/31/20222,420,000 shares $13.19 million -14.8%5.0%2.9 $5.45
1/15/20222,840,000 shares $22.72 million +6.4%5.7%3.3 $8.00
12/31/20212,670,000 shares $30.54 million No Change5.3%1.1 $11.44

GWH Short Interest - Frequently Asked Questions

Short interest is the volume of ESS Tech shares that have been sold short but have not yet been covered or closed out. As of April 30th, traders have sold 1,582,776 shares of GWH short. 5.91% of ESS Tech's shares are currently sold short. Learn More on ESS Tech'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. GWH shares currently have a short interest ratio of 3.1. Learn More on ESS Tech'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. 5.91% of ESS Tech's floating shares are currently sold short.

ESS Tech saw a drop in short interest in April. As of April 30th, there was short interest totaling 1,582,776 shares, a drop of 21.9% from the previous total of 2,026,917 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.

5.91% of ESS Tech's shares are currently sold short. Here is how the short interest of companies in the industry of "electrical equipment" compare to ESS Tech: NeoVolta, Inc. (8.59%), Ultralife Corporation (0.79%), Stem, Inc. (13.10%), China BAK Battery, Inc. (0.14%), Electra Battery Materials Corporation (1.25%), XCHG Limited (0.03%), Zeo Energy Corp. (0.97%), 374Water Inc. (1.27%), Pioneer Power Solutions, Inc. (1.85%), Orion Energy Systems, Inc. (1.46%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($86.09 billion), Invesco QQQ ($39.89 billion), iShares Russell 2000 ETF ($26.13 billion), Western Digital Corporation ($12.66 billion), Salesforce Inc. ($12.29 billion), Sandisk Corporation ($11.87 billion), SPDR S&P Biotech ETF ($9.82 billion), Lumentum Holdings Inc. ($8.51 billion), iShares 20+ Year Treasury Bond ETF ($7.76 billion), and Bloom Energy Corporation ($7.40 billion). View all of the most shorted stocks.

Short selling GWH is an investing strategy that aims to generate trading profit from ESS Tech as its price is falling. GWH shares are trading up $0.03 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 ESS Tech 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 GWH, 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 GWH, twice per month. The most recent reporting period available is April, 30 2026.

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

  • 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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Short Interest Tools

This page (NYSE:GWH) was last updated on 5/12/2026 by MarketBeat.com Staff.
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