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CECO Environmental (CECO) Short Interest Ratio & Short Volume

CECO Environmental logo
$43.71 +6.05 (+16.06%)
As of 04:00 PM Eastern
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CECO Environmental Short Interest Overview

As of October 15, 2026, CECO Environmental (CECO) had a short interest of 1.75 million shares sold short, representing 3.60% of the public float. This marks an 8.37% decrease in short interest since the prior report. The short interest ratio (days to cover) is 1.9, meaning it would take 1.9 days of the average trading volume of 799,347 shares to cover all short positions.

Current Short Interest
1,749,975 shares
Previous Short Interest
1,909,836 shares
Change Vs. Previous Report
-8.37%
Dollar Volume Sold Short
$105.94 million
Short Interest Ratio
1.9 Days to Cover
Last Record Date
October 15, 2026
Outstanding Shares
58,570,000 shares
Short Percent of Float
3.60%
Today's Trading Volume
2,267,267 shares
Average Trading Volume
799,347 shares
Today's Volume Vs. Average
284%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

CECO Short Interest Over Time

CECO Days to Cover Over Time

CECO Percentage of Float Shorted Over Time

CECO Environmental 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
10/15/20261,749,975 shares $105.94 million -8.4%3.6%1.9 $60.54
9/30/20261,909,836 shares $133.00 million -2.9%4.0%2.78 $69.64
9/15/20261,967,749 shares $132.74 million +13.3%4.1%2.72 $67.46
8/31/20261,737,388 shares $123.70 million +6.3%3.6%2.68 $71.20
8/14/20261,634,619 shares $130.10 million -7.2%3.4%1.57 $79.59
7/31/20261,761,490 shares $116.06 million -4.0%5.9%1.79 $65.89
7/15/20261,834,230 shares $147.66 million -15.2%6.3%2.55 $80.50
6/30/20262,162,403 shares $196.22 million +13.4%7.4%2.53 $90.74
6/15/20261,906,224 shares $181.11 million -68.3%6.5%1.74 $95.01
5/29/20266,010,071 shares $449.25 million +16.4%20.2%5.81 $74.75
5/15/20265,164,985 shares $417.54 million +21.2%17.6%5.94 $80.84
4/30/20264,262,101 shares $315.99 million +23.0%14.3%6.32 $74.14
4/15/20263,466,664 shares $224.26 million -0.6%11.8%8.71 $64.69
3/31/20263,486,989 shares $207.75 million +10.4%11.7%5.36 $59.58
3/13/20263,158,867 shares $172.16 million +27.3%10.7%4.02 $54.50
2/27/20262,481,615 shares $150.01 million +34.5%8.5%2.9 $60.45
2/13/20261,844,834 shares $146.00 million -9.7%6.2%6.24 $79.14
1/30/20262,042,073 shares $137.70 million -6.0%6.9%7.95 $67.43
1/15/20262,172,244 shares $143.72 million +1.4%7.3%9.92 $66.16
12/31/20252,142,248 shares $128.21 million -3.6%7.2%7.46 $59.85
12/15/20252,222,376 shares $136.03 million -3.1%7.5%7.52 $61.21
11/28/20252,293,154 shares $119.59 million +4.4%7.7%6.71 $52.15
11/14/20252,195,811 shares $108.67 million -17.8%7.6%5.56 $49.49
10/31/20252,671,385 shares $130.60 million +16.5%9.3%4.11 $48.89
10/15/20252,290,000 shares $120.29 million -3.8%7.7%4.3 $52.53
9/30/20252,380,000 shares $121.86 million +5.8%8.0%5 $51.20
9/15/20252,250,000 shares $110.99 million -4.3%7.5%5.2 $49.33
8/31/20252,350,000 shares $107.14 million +7.8%7.9%6.2 $45.59
8/15/20252,180,000 shares $97.25 million +1.9%7.3%6.7 $44.61
7/31/20252,140,000 shares $96.19 million -12.7%7.2%7.1 $44.95
7/15/20252,450,000 shares $73.62 million -0.8%8.2%9.4 $30.05
6/30/20252,470,000 shares $69.93 million +9.8%8.3%9.1 $28.31
6/15/20252,250,000 shares $62.44 million -8.9%7.6%7.8 $27.75
5/31/20252,470,000 shares $67.06 million +20.5%8.3%8.7 $27.15
5/15/20252,050,000 shares $53.87 million -10.5%6.9%6.8 $26.28
4/30/20252,290,000 shares $54.48 million +7.5%7.7%7.6 $23.79
4/15/20252,130,000 shares $43.60 million +4.4%7.2%7.7 $20.47
3/31/20252,040,000 shares $46.51 million -7.3%6.9%6.7 $22.80
3/15/20252,200,000 shares $51.15 million -1.8%7.5%7.9 $23.25
2/28/20252,240,000 shares $55.73 million +11.4%7.5%7.9 $24.88
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2/15/20252,010,000 shares $48.78 million +9.8%6.8%6.9 $24.27
1/31/20251,830,000 shares $51.83 million -12.9%6.2%6.1 $28.32
1/15/20252,100,000 shares $66.84 million -5.0%7.1%6.3 $31.83
12/31/20242,210,000 shares $66.81 million +10.0%7.4%7.6 $30.23
12/15/20242,010,000 shares $64.54 million +4.2%6.8%7.1 $32.11
11/30/20241,930,000 shares $61.86 million +9.7%6.5%7 $32.05
11/15/20241,760,000 shares $47.87 million -3.8%5.9%6.7 $27.20
10/31/20241,830,000 shares $43.55 million +21.2%6.2%8.2 $23.80
10/15/20241,510,000 shares $39.62 million -9.6%5.1%7.4 $26.24
9/30/20241,670,000 shares $47.09 million +1.2%5.6%7.4 $28.20
9/15/20241,650,000 shares $46.27 million +8.6%5.6%5.7 $28.04
8/31/20241,520,000 shares $44.00 million -5.0%5.1%5.2 $28.95
8/15/20241,600,000 shares $45.12 million -3.0%5.4%5.3 $28.20
7/31/20241,650,000 shares $48.18 million +4.4%5.6%5.2 $29.20
7/15/20241,580,000 shares $46.70 million +29.5%5.3%4.8 $29.56
6/30/20241,220,000 shares $35.20 million +17.3%4.1%3.9 $28.85
6/15/20241,040,000 shares $24.32 million -8.0%3.5%3.7 $23.38
5/31/20241,130,000 shares $28.28 million -12.4%3.8%4 $25.03
5/15/20241,290,000 shares $32.40 million +15.2%4.4%4.1 $25.12
4/30/20241,120,000 shares $24.21 million +4.7%3.8%3.7 $21.62
4/15/20241,070,000 shares $24.66 million -6.1%3.6%4.3 $23.05
3/31/20241,140,000 shares $26.24 million -5.8%3.9%4.7 $23.02
3/15/20241,210,000 shares $25.80 million +9.0%4.1%5.2 $21.32
2/29/20241,110,000 shares $25.14 million +12.6%3.7%5 $22.65
2/15/2024985,700 shares $20.77 million -2.4%3.3%5.1 $21.07
1/31/20241,010,000 shares $19.52 million -5.6%3.4%4.1 $19.33
1/15/20241,070,000 shares $20.40 million +1.9%3.6%4.1 $19.07
12/31/20231,050,000 shares $21.29 million -3.7%3.5%3.9 $20.28
12/15/20231,090,000 shares $21.99 million +4.8%3.7%4 $20.17
11/30/20231,040,000 shares $20.02 million -2.8%3.5%3.4 $19.25
11/15/20231,070,000 shares $21.00 million -6.1%3.6%3.6 $19.63
10/31/20231,140,000 shares $18.45 million +5.6%3.9%4.3 $16.18
10/15/20231,080,000 shares $17.28 million -6.1%3.7%4.2 $16.00
9/30/20231,150,000 shares $18.37 million -9.5%3.9%4.5 $15.97
9/15/20231,270,000 shares $20.28 million +13.4%4.3%4.7 $15.97
8/31/20231,120,000 shares $15.43 million -1.8%3.8%3.6 $13.78
8/15/20231,140,000 shares $15.14 million +18.5%3.9%3.6 $13.28
7/31/2023961,700 shares $11.58 million -16.4%3.3%2.8 $12.04
7/15/20231,150,000 shares $14.86 million -14.8%3.9%3.5 $12.92
6/30/20231,350,000 shares $18.04 million +242.8%4.6%4.1 $13.36
6/15/2023393,800 shares $5.14 million +70.2%1.4%1.2 $13.06
5/31/2023231,400 shares $2.49 million -25.3%0.8%0.8 $10.76
5/15/2023309,600 shares $3.66 million No Change1.1%0.9 $11.83

CECO Short Interest - Frequently Asked Questions

Short interest is the volume of CECO Environmental shares that have been sold short but have not yet been closed out or covered. As of October 15th, investors have sold 1,749,975 shares of CECO short. 3.60% of CECO Environmental's shares are currently sold short. Learn More on CECO Environmental'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. CECO shares currently have a short interest ratio of 1.9. Learn More on CECO Environmental'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. 3.60% of CECO Environmental's floating shares are currently sold short.

CECO Environmental saw a drop in short interest since the prior report. As of October 15th, there was short interest totaling 1,749,975 shares, a drop of 8.4% from the previous total of 1,909,836 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.

3.60% of CECO Environmental's shares are currently sold short. Here is how the short interest of companies in the industry of "industrial machinery & supplies & components" compare to CECO Environmental: Crane (2.14%), Graco Inc. (3.46%), Donaldson Company, Inc. (2.89%), Flowserve Corporation (6.77%), Pentair plc (4.68%), Valmont Industries, Inc. (2.28%), SPX Technologies, Inc. (3.38%), Timken Company (The) (7.59%), MSA Safety Incorporporated (2.98%), Gates Industrial Corporation PLC (4.75%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($71.77 billion), Invesco QQQ ($59.70 billion), iShares Russell 2000 ETF ($23.54 billion), Medtronic PLC ($13.33 billion), SPDR S&P Biotech ETF ($10.47 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($10.36 billion), Nebius Group N.V. ($8.98 billion), iShares 20+ Year Treasury Bond ETF ($8.92 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($8.10 billion), and iShares Semiconductor ETF ($7.74 billion). View all of the most shorted stocks.

Short selling CECO is an investing strategy that aims to generate trading profit from CECO Environmental as its price is falling. CECO shares are trading down $7.74 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 CECO Environmental 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 CECO, 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 CECO, twice per month. The most recent reporting period available is October, 15 2026.

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

  • 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

Short interest data for TXSE:CECO is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 10/26/2026. FINRA publishes updated short interest twice a month.
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