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Energy Focus (EFOI) Short Interest Ratio & Short Volume

Energy Focus logo
$4.23 +0.31 (+7.91%)
As of 05/14/2026 04:00 PM Eastern
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Energy Focus Short Interest Overview

As of April 30, 2026, Energy Focus (EFOI) had a short interest of 322,823 shares sold short, representing 10.02% of the public float. This marks a 410.20% increase in short interest since the prior report. The short interest ratio (days to cover) is 0.0, meaning it would take 0.0 days of the average trading volume of 8.91 million shares to cover all short positions.

Current Short Interest
322,823 shares
Previous Short Interest
63,274 shares
Change Vs. Previous Month
410.20%
Dollar Volume Sold Short
$1.16 million
Short Interest Ratio
0.0 Days to Cover
Last Record Date
April 30, 2026
Outstanding Shares
6,300,000 shares
Short Percent of Float
10.02%
Today's Trading Volume
132,826 shares
Average Trading Volume
8,908,303 shares
Today's Volume Vs. Average
1%
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Skip Charts & View Short Interest History
Short Interest ChartDays to Cover ChartShort Percent of Float Chart

EFOI Short Interest Over Time

EFOI Days to Cover Over Time

EFOI Percentage of Float Shorted Over Time

Energy Focus 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
4/30/2026322,823 shares $1.16 million +410.2%10.0%0.02 $3.58
4/15/202663,274 shares $133.51 thousand +8.4%1.7%10.99 $2.11
3/31/202658,368 shares $112.07 thousand +39.0%1.5%3.93 $1.92
3/13/202641,980 shares $85.22 thousand +57.9%1.2%2.05 $2.03
2/27/202626,588 shares $46.53 thousand -36.5%0.8%3.67 $1.75
2/13/202641,893 shares $75.83 thousand +100.6%1.2%0.78 $1.81
1/30/202620,886 shares $45.74 thousand +82.0%0.6%1.78 $2.19
1/15/202611,473 shares $27.99 thousand +9.9%0.3%0.73 $2.44
12/31/202510,440 shares $24.12 thousand +8.9%0.3%0.48 $2.31
12/15/20259,588 shares $19.37 thousand +169.7%0.3%0.38 $2.02
11/28/20253,555 shares $8.35 thousand +912.8%0.1%0.52 $2.35
11/14/2025351 shares $825.20 -45.6%0.0%0.05 $2.35
10/31/2025645 shares $1.75 thousand -88.7%0.0%0.07 $2.72
10/15/20255,700 shares $16.82 thousand -12.3%0.2%0.3 $2.95
9/30/20256,500 shares $18.07 thousand -39.3%0.2%0.3 $2.78
9/15/202510,700 shares $33.28 thousand -23.0%0.3%0.5 $3.11
8/31/202513,900 shares $35.86 thousand +1,290.0%0.4%0.7 $2.58
8/15/20251,000 shares $1.94 thousand No Change0.0%0.1 $1.94
7/31/20251,000 shares $2.08 thousand -80.4%0.0%0.1 $2.08
7/15/20255,100 shares $12.34 thousand -58.2%0.2%0.4 $2.42
6/30/202512,200 shares $29.89 thousand +103.3%0.4%1 $2.45
6/15/20256,000 shares $11.19 thousand -36.2%0.2%0.6 $1.87
5/31/20259,400 shares $19.04 thousand -35.6%0.2%1 $2.03
5/15/202514,600 shares $22.25 thousand +11.5%0.3%0.7 $1.52
4/30/202513,100 shares $22.27 thousand -25.6%0.2%0 $1.70
4/15/202517,600 shares $29.92 thousand -32.6%0.3%0 $1.70
3/31/202526,100 shares $48.02 thousand -32.0%0.5%0 $1.84
3/15/202538,400 shares $81.02 thousand -61.1%0.7%0 $2.11
2/28/202598,800 shares $216.37 thousand +437.0%1.9%0.1 $2.19
2/15/202518,400 shares $23.74 thousand -25.2%0.4%0 $1.29
1/31/202524,600 shares $32.23 thousand -30.7%0.5%2.2 $1.31
1/15/202535,500 shares $46.15 thousand +73.2%0.8%3.4 $1.30
12/31/202420,500 shares $24.40 thousand -14.9%0.5%2 $1.19
12/15/202424,100 shares $33.02 thousand -6.2%0.5%2.5 $1.37
11/30/202425,700 shares $38.29 thousand -30.0%0.6%2.6 $1.49
11/15/202436,700 shares $53.21 thousand +55.5%0.8%3.7 $1.45
10/31/202423,600 shares $31.15 thousand -14.8%0.6%3.9 $1.32
10/15/202427,700 shares $35.73 thousand +22.0%0.8%4.4 $1.29
9/30/202422,700 shares $27.01 thousand +16.4%0.6%4 $1.19
9/15/202419,500 shares $24.28 thousand -3.9%0.5%2.7 $1.25
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8/31/202420,300 shares $30.06 thousand +2.0%0.6%2.6 $1.48
8/15/202419,900 shares $28.57 thousand +17.8%0.6%2.6 $1.44
7/31/202416,900 shares $22.31 thousand +1.2%0.5%1.4 $1.32
7/15/202416,700 shares $22.71 thousand -23.7%0.5%1.3 $1.36
6/30/202421,900 shares $30.42 thousand +34.4%0.7%1.2 $1.39
6/15/202416,300 shares $28.52 thousand -7.9%0.5%0.9 $1.75
5/31/202417,700 shares $29.21 thousand -28.1%0.6%1 $1.65
5/15/202424,600 shares $47.48 thousand -22.4%0.8%1 $1.93
4/30/202431,700 shares $49.16 thousand -41.8%1.1%0.1 $1.55
4/15/202454,500 shares $81.21 thousand +41.2%1.9%0.2 $1.49
3/31/202438,600 shares $61.37 thousand +2.4%1.4%0.2 $1.59
3/15/202437,700 shares $61.45 thousand -46.2%1.3%0.2 $1.63
2/29/202470,100 shares $143.71 thousand +705.8%2.5%0.3 $2.05
2/15/20248,700 shares $11.31 thousand +11.5%0.3%0 $1.30
1/31/20247,800 shares $10.53 thousand +4.0%0.3%1.3 $1.35
1/15/20247,500 shares $11.18 thousand -2.6%0.3%1.3 $1.49
12/31/20237,700 shares $11.63 thousand -11.5%0.3%1.2 $1.51
12/15/20238,700 shares $12.35 thousand -28.1%0.3%1.3 $1.42
11/30/202312,100 shares $20.57 thousand -28.4%0.5%1.9 $1.70
11/15/202316,900 shares $20.60 thousand -5.6%0.7%2.8 $1.22
10/31/202317,900 shares $27.03 thousand -8.7%0.9%4.2 $1.51
10/15/202319,600 shares $38.22 thousand -13.7%1.0%3.6 $1.95
9/30/202322,700 shares $45.40 thousand +9.7%1.2%2.5 $2.00
9/15/202320,700 shares $46.78 thousand +8.4%1.1%2.2 $2.26
8/31/202319,100 shares $37.05 thousand +8.5%1.3%1.4 $1.94
8/15/202317,600 shares $34.14 thousand +45.5%1.2%1.2 $1.94
7/31/202312,100 shares $23.23 thousand -28.4%0.8%0.9 $1.92
7/15/202316,900 shares $33.41 thousand -17.2%1.1%1.2 $1.98
6/30/202320,400 shares $36.92 thousand +46.8%1.4%1.9 $1.81
6/15/202313,900 shares $35.97 thousand -91.3%0.9%1.4 $2.59
5/31/2023159,700 shares $66.83 thousand +7.5%1.5%4.1 $0.42
5/15/2023148,600 shares $69.22 thousand No Change1.4%2.3 $0.47
10/31/2022697,300 shares $284.99 thousand +714.6%N/A1.2 $0.41
10/15/202285,600 shares $35.47 thousand +22.6%N/A0.1 $0.41
9/30/202269,800 shares $36.30 thousand -60.0%N/A0.2 $0.52
9/15/2022174,500 shares $124.78 thousand -14.2%N/A0.5 $0.72
8/31/2022203,300 shares $152.45 thousand -20.7%N/A0.1 $0.75
8/15/2022256,200 shares $197.25 thousand +745.5%N/A0.1 $0.77
7/31/202230,300 shares $22.34 thousand -12.4%N/A0 $0.74
7/15/202234,600 shares $30.40 thousand -83.8%N/A0 $0.88
6/30/2022213,800 shares $277.94 thousand -75.8%N/A0.1 $1.30
6/15/2022883,200 shares $1.74 million +2,490.0%N/A0.2 $1.97
5/31/202234,100 shares $30.28 thousand -45.8%N/A0 $0.89
5/15/202262,900 shares $53.96 thousand +4.1%N/A0.3 $0.86
4/30/202260,400 shares $67.65 thousand -6.4%N/A0.3 $1.12
4/15/202264,500 shares $76.11 thousand -39.1%N/A0.2 $1.18
3/31/2022105,900 shares $144.02 thousand -30.8%N/A0 $1.36
3/15/2022153,000 shares $198.90 thousand +85.7%N/A0.2 $1.30
2/28/202282,400 shares $106.30 thousand -40.5%N/A0 $1.29
2/15/2022138,400 shares $203.45 thousand -24.5%N/A0 $1.47
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1/31/2022183,300 shares $298.78 thousand -53.4%N/A0 $1.63
1/15/2022393,600 shares $850.18 thousand +4.5%N/A0.1 $2.16
12/31/2021376,700 shares $1.61 million -65.4%N/A0.1 $4.27
12/15/20211,090,000 shares $4.08 million +805.3%N/A0.3 $3.74
11/30/2021120,400 shares $267.29 thousand +103.7%N/A0 $2.22
11/15/202159,100 shares $155.43 thousand -5.1%N/A0.8 $2.63
10/29/202162,300 shares $199.36 thousand -0.2%N/A0.6 $3.20
10/15/202162,400 shares $187.20 thousand -22.7%N/A0.3 $3.00
9/30/202180,700 shares $250.17 thousand -8.3%N/A0.3 $3.10
9/15/202188,000 shares $275.44 thousand -39.1%N/A0.2 $3.13
8/31/2021144,600 shares $494.53 thousand -36.4%N/A0.3 $3.42
8/13/2021227,200 shares $627.07 thousand -1.5%N/A0.2 $2.76
7/30/2021230,700 shares $862.82 thousand -18.3%N/A0.2 $3.74
7/15/2021282,500 shares $1.09 million +60.7%N/A0.2 $3.86
6/30/2021175,800 shares $699.68 thousand -28.1%4.4%0.1 $3.98
6/15/2021244,400 shares $984.93 thousand -4.7%6.1%0.2 $4.03
5/28/2021256,400 shares $1.06 million -26.0%8.1%0.3 $4.14

EFOI Short Interest - Frequently Asked Questions

Short interest is the volume of Energy Focus shares that have been sold short but have not yet been closed out or covered. As of April 30th, investors have sold 322,823 shares of EFOI short. 10.02% of Energy Focus' shares are currently sold short. Learn More on Energy Focus' 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. EFOI shares currently have a short interest ratio of 0.0. Learn More on Energy Focus'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. 10.02% of Energy Focus' floating shares are currently sold short.

Energy Focus saw a increase in short interest in April. As of April 30th, there was short interest totaling 322,823 shares, an increase of 410.2% from the previous total of 63,274 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.

10.02% of Energy Focus' shares are currently sold short. Here is how the short interest of companies in the industry of "electrical equipment" compare to Energy Focus: 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%), Pioneer Power Solutions, Inc. (1.85%), 374Water Inc. (1.27%), Orion Energy Systems, Inc. (1.46%), Solidion Technology Inc. (3.26%), MKDWELL Tech Inc. (0.56%),

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 EFOI is an investing strategy that aims to generate trading profit from Energy Focus as its price is falling. EFOI shares are trading up $0.31 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 Energy Focus occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of EFOI, 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 EFOI, 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 EFOI:

  • 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 (NASDAQ:EFOI) was last updated on 5/15/2026 by MarketBeat.com Staff.
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