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electroCore (ECOR) Short Interest Ratio & Short Volume

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$11.12 -0.23 (-2.03%)
Closing price 04:00 PM Eastern
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$11.12 0.00 (-0.04%)
As of 07:30 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.
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electroCore Short Interest Overview

As of September 15, 2026, electroCore (ECOR) had a short interest of 322,371 shares sold short, representing 3.88% of the public float. This marks a -1.00% decrease in short interest since the prior report. The short interest ratio (days to cover) is 5.4, meaning it would take 5.4 days of the average trading volume of 83,978 shares to cover all short positions.

Current Short Interest
322,371 shares
Previous Short Interest
325,612 shares
Change Vs. Previous Month
-1.00%
Dollar Volume Sold Short
$3.24 million
Short Interest Ratio
5.4 Days to Cover
Last Record Date
September 15, 2026
Outstanding Shares
9,020,000 shares
Short Percent of Float
3.88%
Today's Trading Volume
52,223 shares
Average Trading Volume
83,978 shares
Today's Volume Vs. Average
62%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

ECOR Short Interest Over Time

ECOR Days to Cover Over Time

ECOR Percentage of Float Shorted Over Time

electroCore 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
9/15/2026322,371 shares $3.24 million -1.0%3.9%5.41 $10.05
8/31/2026325,612 shares $3.09 million +1.0%3.9%3.68 $9.49
8/14/2026322,419 shares $3.21 million -8.1%3.9%2.66 $9.97
7/31/2026350,701 shares $2.14 million -4.6%4.2%7.6 $6.09
7/15/2026367,579 shares $2.22 million +80.0%4.7%3.45 $6.03
6/30/2026204,261 shares $1.76 million -1.4%2.9%2.42 $8.64
6/15/2026207,168 shares $1.89 million -26.1%2.9%1.3 $9.11
5/29/2026280,333 shares $2.74 million -3.2%3.9%1.43 $9.76
5/15/2026289,666 shares $1.82 million -13.5%4.1%4.06 $6.27
4/30/2026334,857 shares $2.18 million -1.9%4.7%8.36 $6.51
4/15/2026341,291 shares $2.32 million +16.9%4.8%3.54 $6.79
3/31/2026291,996 shares $1.76 million +11.3%3.5%4.19 $6.03
3/13/2026262,469 shares $1.61 million +0.4%3.8%5.19 $6.14
2/27/2026261,497 shares $1.98 million -1.2%3.8%5.28 $7.58
2/13/2026264,654 shares $1.44 million -2.0%3.7%6.9 $5.43
1/30/2026270,001 shares $1.80 million -3.4%3.9%2.6 $6.66
1/15/2026279,360 shares $1.90 million +4.3%4.1%3.3 $6.79
12/31/2025267,837 shares $1.20 million +2.1%3.9%5.39 $4.49
12/15/2025262,267 shares $1.25 million -6.6%3.8%9 $4.77
11/28/2025280,850 shares $1.34 million +0.8%4.1%7.76 $4.77
11/14/2025278,634 shares $1.56 million -23.2%4.0%2.28 $5.60
10/31/2025362,958 shares $1.83 million -0.7%5.3%10.65 $5.04
10/15/2025365,500 shares $1.88 million -10.7%8.1%5.1 $5.14
9/30/2025409,200 shares $2.03 million -6.5%9.0%5.2 $4.95
9/15/2025437,500 shares $2.11 million -3.1%10.0%4.6 $4.83
8/31/2025451,700 shares $2.40 million +4.8%9.2%4.6 $5.31
8/15/2025431,000 shares $2.26 million +5.9%8.3%4.1 $5.24
7/31/2025407,000 shares $2.82 million +0.4%7.8%3.3 $6.92
7/15/2025405,600 shares $2.82 million +12.8%7.9%3.3 $6.95
6/30/2025359,600 shares $1.90 million -6.6%7.0%2.8 $5.28
6/15/2025385,000 shares $1.96 million -1.8%7.5%3 $5.09
5/31/2025392,000 shares $1.99 million +5.6%7.7%2.5 $5.08
5/15/2025371,200 shares $1.84 million +23.1%6.3%2.2 $4.95
4/30/2025301,600 shares $2.22 million -0.1%5.1%1.9 $7.36
4/15/2025302,000 shares $1.88 million +15.2%5.2%2 $6.21
3/31/2025262,100 shares $1.75 million -9.0%4.5%1.7 $6.69
3/15/2025288,100 shares $2.47 million +136.9%5.0%1.9 $8.56
2/28/2025121,600 shares $1.85 million +2.1%2.3%0.9 $15.22
2/15/2025119,100 shares $2.07 million +0.4%2.3%1 $17.41
1/31/2025118,600 shares $1.98 million +34.5%2.3%1 $16.72
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1/15/202588,200 shares $1.38 million -1.5%1.7%0.7 $15.70
12/31/202489,500 shares $1.45 million -22.8%1.7%0.7 $16.21
12/15/2024115,900 shares $1.58 million +73.0%2.2%1 $13.61
11/30/202467,000 shares $817.40 thousand +13.8%1.3%0.8 $12.20
11/15/202458,900 shares $644.37 thousand +37.0%1.1%0.8 $10.94
10/31/202443,000 shares $490.20 thousand +64.1%0.8%0.9 $11.40
10/15/202426,200 shares $210.65 thousand -0.4%0.5%1 $8.04
9/30/202426,300 shares $189.89 thousand -25.1%0.5%1.8 $7.22
9/15/202435,100 shares $214.11 thousand +83.8%0.7%3.3 $6.10
8/31/202419,100 shares $115.56 thousand +3.2%0.4%2.2 $6.05
8/15/202418,500 shares $110.82 thousand +20.1%0.4%2.4 $5.99
7/31/202415,400 shares $93.52 thousand -12.0%0.3%1.7 $6.07
7/15/202417,500 shares $109.90 thousand -21.2%0.3%1.8 $6.28
6/30/202422,200 shares $142.75 thousand +82.0%0.4%2.2 $6.43
6/15/202412,200 shares $75.15 thousand -0.8%0.2%1.1 $6.16
5/31/202412,300 shares $79.09 thousand -12.8%0.2%1.1 $6.43
5/15/202414,100 shares $103.92 thousand +104.4%0.3%1.2 $7.37
4/30/20246,900 shares $42.23 thousand -21.6%0.1%0.6 $6.12
4/15/20248,800 shares $49.90 thousand -12.9%0.2%0.8 $5.67
3/31/202410,100 shares $62.32 thousand -40.6%0.2%0.7 $6.17
3/15/202417,000 shares $112.88 thousand +6.3%0.4%1.2 $6.64
2/29/202416,000 shares $110.88 thousand -31.6%0.4%1.1 $6.93
2/15/202423,400 shares $170.12 thousand +1.7%0.5%1.5 $7.27
1/31/202423,000 shares $174.11 thousand +78.3%0.5%1.5 $7.57
1/15/202412,900 shares $79.59 thousand -27.5%0.3%0.8 $6.17
12/31/202317,800 shares $105.94 thousand +10.6%0.4%1.2 $5.95
12/15/202316,100 shares $85.65 thousand +198.2%0.3%1 $5.32
11/30/20235,400 shares $30.35 thousand -68.8%0.1%0.3 $5.62
11/15/202317,300 shares $107.78 thousand -16.4%0.3%1.1 $6.23
10/31/202320,700 shares $126.68 thousand -10.4%0.4%1.3 $6.12
10/15/202323,100 shares $124.97 thousand -64.4%0.4%1.1 $5.41
9/30/202364,900 shares $393.94 thousand +19.7%1.2%3.1 $6.07
9/15/202354,200 shares $306.23 thousand -36.5%1.0%2.8 $5.65
8/31/202385,400 shares $469.70 thousand -2.5%1.7%3 $5.50
8/15/202387,600 shares $443.26 thousand +13.2%1.7%2.9 $5.06
7/31/202377,400 shares $348.30 thousand +0.8%1.5%2.6 $4.50
7/15/202376,800 shares $350.21 thousand -9.7%1.8%3 $4.56
6/30/202385,000 shares $416.50 thousand +11.0%2.0%3.1 $4.90
6/15/202376,600 shares $342.33 thousand +11.5%1.8%2.5 $4.47
5/31/202368,700 shares $333.88 thousand -19.1%1.7%2.9 $4.86
5/15/202384,900 shares $567.98 thousand +2.3%2.0%3.7 $6.69
4/30/202383,000 shares $509.57 thousand +0.2%2.0%3.2 $6.14
4/15/202382,800 shares $522.47 thousand -28.1%2.2%3.2 $6.31
3/31/2023115,100 shares $633.05 thousand +43.0%3.0%4.4 $5.50
3/15/202380,500 shares $280.14 thousand +23.1%2.1%3.3 $3.48
2/28/202365,400 shares $219.09 thousand +38.3%1.6%3.3 $3.35
2/15/202347,300 shares $189.20 thousand -93.6%1.2%2.4 $4.00
1/31/2023734,700 shares $257.22 thousand -8.6%N/A2.4 $0.35
1/15/2023803,600 shares $242.61 thousand +4.2%N/A2.1 $0.30
12/30/2022771,000 shares $197.95 thousand -11.9%N/A2.3 $0.26
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12/15/2022875,000 shares $293.21 thousand +17.2%N/A2.6 $0.34
11/30/2022746,500 shares $247.24 thousand +4.8%N/A2.3 $0.33
11/15/2022712,500 shares $201.21 thousand -2.1%N/A2.4 $0.28
10/31/2022728,100 shares $189.52 thousand -0.2%N/A2.7 $0.26
10/15/2022729,600 shares $107.83 million +1.5%N/A3.9 $147.80
9/30/2022718,900 shares $291.87 thousand -1.4%N/A3.9 $0.41
9/15/2022729,400 shares $364.04 thousand +105.5%N/A4.1 $0.50
8/31/2022354,900 shares $187.99 thousand -0.2%N/A1.9 $0.53
8/15/2022355,600 shares $234.70 thousand -55.5%N/A1.5 $0.66
7/31/2022799,600 shares $460.57 thousand +17.8%N/A2.8 $0.58
7/15/2022679,000 shares $414.19 thousand -32.8%N/A2.5 $0.61
6/30/20221,010,000 shares $515.00 thousand -2.9%N/A3.5 $0.51
6/15/20221,040,000 shares $592.80 thousand -29.7%N/A3.4 $0.57
5/31/20221,480,000 shares $663.04 thousand +50.0%N/A4.2 $0.45
5/15/2022986,400 shares $318.61 thousand -32.4%N/A2.6 $0.32
4/30/20221,460,000 shares $617.58 thousand +19.7%N/A3.9 $0.42
4/15/20221,220,000 shares $610.85 thousand +7.0%N/A2.8 $0.50
3/31/20221,140,000 shares $666.90 thousand -19.7%N/A0.5 $0.59
3/15/20221,420,000 shares $717.10 thousand -12.4%N/A0.7 $0.51
2/28/20221,620,000 shares $958.07 thousand +39.7%N/A0.8 $0.59
2/15/20221,160,000 shares $655.28 thousand -19.4%N/A0.5 $0.56
1/31/20221,440,000 shares $979.20 thousand -78.3%N/A0.6 $0.68
1/15/20226,620,000 shares $5.04 million +555.5%N/A2.9 $0.76
12/31/20211,010,000 shares $588.33 thousand -8.2%N/A1.5 $0.58
12/15/20211,100,000 shares $737 thousand +6.8%N/A1.3 $0.67
11/30/20211,030,000 shares $722.24 thousand +5.5%N/A0.9 $0.70
11/15/2021976,600 shares $902.38 thousand -3.3%N/A0.8 $0.92
10/29/20211,010,000 shares $949.40 thousand +24.1%N/A0.7 $0.94
10/15/2021814,000 shares $811.23 thousand -17.8%N/A0.4 $1.00
9/30/2021990,600 shares $1.12 million -17.5%N/A0.3 $1.13

ECOR Short Interest - Frequently Asked Questions

Short interest is the volume of electroCore shares that have been sold short but have not yet been covered or closed out. As of September 15th, traders have sold 322,371 shares of ECOR short. 3.88% of electroCore's shares are currently sold short. Learn More on electroCore'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. ECOR shares currently have a short interest ratio of 5.4. Learn More on electroCore'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. 3.88% of electroCore's floating shares are currently sold short.

electroCore saw a decrease in short interest during the month of September. As of September 15th, there was short interest totaling 322,371 shares, a decrease of 1.0% from the previous total of 325,612 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.

3.88% of electroCore's shares are currently sold short. Here is how the short interest of companies in the industry of "healthcare equipment" compare to electroCore: ClearPoint Neuro, Inc. (15.25%), Carlsmed, Inc. (4.54%), Senseonics Holdings, Inc. Common Stock (12.69%), Orchestra BioMed Holdings, Inc. (4.27%), Shoulder Innovations, Inc. (2.84%), Orthofix Medical Inc. (6.32%), Avita Medical Inc. (9.59%), Mobia Medical, Inc. (1.41%), CapsoVision, Inc. (3.88%), TriSalus Life Sciences, Inc. (6.49%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.21 billion), Invesco QQQ ($46.31 billion), iShares Russell 2000 ETF ($27.98 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($9.70 billion), Canadian Natural Resources Limited ($9.42 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($8.53 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.79 billion), and Financial Select Sector SPDR Fund ($7.74 billion). View all of the most shorted stocks.

Short selling ECOR is an investing strategy that aims to generate trading profit from electroCore as its price is falling. ECOR shares are trading down $0.24 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 electroCore 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 ECOR, 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 ECOR, twice per month. The most recent reporting period available is September, 15 2026.

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

  • 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

Short interest data for NASDAQ:ECOR is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 9/24/2026. FINRA publishes updated short interest twice a month.
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