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Celestica (CLS) Short Interest Ratio & Short Volume

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$362.13 +5.60 (+1.57%)
Closing price 10/9/2026 03:59 PM Eastern
Extended Trading
$361.49 -0.64 (-0.18%)
As of 10/9/2026 07:49 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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Celestica Short Interest Overview

As of September 30, 2026, Celestica (CLS) had a short interest of 4.44 million shares sold short, representing 3.90% of the public float. This marks a 14.85% increase in short interest since the prior report. The short interest ratio (days to cover) is 2.0, meaning it would take 2.0 days of the average trading volume of 2.15 million shares to cover all short positions.

Current Short Interest
4,437,263 shares
Previous Short Interest
3,863,438 shares
Change Vs. Previous Month
14.85%
Dollar Volume Sold Short
$1.61 billion
Short Interest Ratio
2.0 Days to Cover
Last Record Date
September 30, 2026
Outstanding Shares
114,980,000 shares
Short Percent of Float
3.90%
Today's Trading Volume
1,255,358 shares
Average Trading Volume
2,147,848 shares
Today's Volume Vs. Average
58%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

CLS Short Interest Over Time

CLS Days to Cover Over Time

CLS Percentage of Float Shorted Over Time

Celestica 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
9/30/20264,437,263 shares $1.61 billion +14.9%3.9%1.95 $361.89
9/15/20263,863,438 shares $1.22 billion -3.2%3.4%1.58 $316.49
8/31/20263,990,612 shares $1.20 billion +6.2%3.5%2.05 $299.91
8/14/20263,758,436 shares $1.26 billion +15.2%3.3%1.13 $334.44
7/31/20263,262,099 shares $1.08 billion +8.1%2.9%0.98 $330.83
7/15/20263,016,696 shares $1.01 billion -19.1%2.7%2 $334.62
6/30/20263,727,464 shares $1.36 billion -0.6%3.3%1.99 $365.55
6/15/20263,751,361 shares $1.51 billion +5.0%3.3%1.55 $402.82
5/29/20263,573,565 shares $1.38 billion +4.4%3.1%1.68 $386.28
5/15/20263,423,299 shares $1.23 billion +56.5%3.0%1.64 $358.50
4/30/20262,187,572 shares $897.33 million -15.2%1.9%0.82 $410.19
4/15/20262,578,347 shares $982.50 million -18.5%2.3%1.14 $381.06
3/31/20263,163,580 shares $892.96 million -13.7%2.8%1.78 $282.26
3/13/20263,663,996 shares $966.67 million -11.3%3.2%2 $263.83
2/27/20264,131,122 shares $1.15 billion +28.8%3.6%2.07 $277.43
2/13/20263,208,135 shares $901.03 million +20.3%2.8%0.94 $280.86
1/30/20262,665,806 shares $749.32 million -33.2%2.3%0.67 $281.09
1/15/20263,989,517 shares $1.25 billion +2.7%3.5%1.69 $313.18
12/31/20253,885,173 shares $1.15 billion +11.6%3.4%1.81 $295.88
12/15/20253,481,694 shares $1.05 billion +12.5%3.1%1.37 $302.78
11/28/20253,094,838 shares $1.06 billion -3.4%2.7%0.88 $343.79
11/14/20253,389,445 shares $1.05 billion +0.1%3.0%1.09 $309.17
10/31/20253,385,771 shares $1.17 billion -32.6%3.0%0.97 $344.48
10/15/20255,020,000 shares $1.36 billion -6.0%4.4%1.5 $270.36
9/30/20255,340,000 shares $1.32 billion +6.8%4.7%1.6 $246.38
9/15/20255,000,000 shares $1.25 billion -0.2%4.4%1.4 $249.33
8/31/20255,010,000 shares $977.57 million -15.8%4.4%1.4 $195.12
8/15/20255,950,000 shares $1.16 billion +14.6%5.2%1.7 $195.51
7/31/20255,190,000 shares $1.04 billion +16.9%4.5%1.4 $199.98
7/15/20254,440,000 shares $712.56 million +14.1%3.9%1.2 $160.49
6/30/20253,890,000 shares $608.63 million -4.0%3.4%1 $156.46
6/15/20254,050,000 shares $506.96 million +13.1%3.5%1 $125.18
5/31/20253,580,000 shares $413.28 million -9.1%3.1%0.8 $115.44
5/15/20253,940,000 shares $439.27 million +11.3%3.4%0.8 $111.49
4/30/20253,540,000 shares $302.17 million +4.1%3.1%0.7 $85.36
4/15/20253,400,000 shares $280.76 million +7.9%3.0%0.6 $82.58
3/31/20253,150,000 shares $248.31 million +9.8%2.7%0.6 $78.83
3/15/20252,870,000 shares $263.53 million +9.1%2.5%0.7 $91.82
2/28/20252,630,000 shares $281.29 million -4.4%2.3%0.6 $106.95
2/15/20252,750,000 shares $363.45 million -5.2%2.4%0.8 $132.16
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1/31/20252,900,000 shares $358.34 million +7.0%2.5%0.9 $123.57
1/15/20252,710,000 shares $291.14 million +12.5%2.3%1 $107.43
12/31/20242,410,000 shares $222.44 million -15.1%2.1%1 $92.30
12/15/20242,840,000 shares $281.73 million -5.0%2.5%1.2 $99.20
11/30/20242,990,000 shares $254.87 million -12.3%2.6%1.3 $85.24
11/15/20243,410,000 shares $280.06 million +15.6%3.0%1.5 $82.13
10/31/20242,950,000 shares $201.81 million +1.0%2.6%1.4 $68.41
10/15/20242,920,000 shares $178.44 million -7.0%2.5%1.3 $61.11
9/30/20243,140,000 shares $160.42 million -10.5%2.7%1.4 $51.09
9/15/20243,510,000 shares $161.00 million +9.0%3.0%1.6 $45.87
8/31/20243,220,000 shares $163.96 million -7.5%2.7%1.4 $50.92
8/15/20243,480,000 shares $194.85 million -5.4%2.9%1.5 $55.99
7/31/20243,680,000 shares $192.98 million -20.0%3.1%1.5 $52.44
7/15/20244,600,000 shares $281.75 million -7.8%3.9%2 $61.25
6/30/20244,990,000 shares $286.08 million +7.1%4.2%2.2 $57.33
6/15/20244,660,000 shares $259.61 million +6.4%3.9%2 $55.71
5/31/20244,380,000 shares $244.93 million -10.8%3.7%1.9 $55.92
5/15/20244,910,000 shares $255.57 million +31.6%4.1%2.2 $52.05
4/30/20243,730,000 shares $161.62 million -26.3%3.2%1.6 $43.33
4/15/20245,060,000 shares $224.41 million +8.8%4.3%2.1 $44.35
3/31/20244,650,000 shares $208.97 million -4.9%4.0%2 $44.94
3/15/20244,890,000 shares $214.72 million +7.7%4.2%2.3 $43.91
2/29/20244,540,000 shares $193.09 million +23.4%3.9%2.2 $42.53
2/15/20243,680,000 shares $146.80 million +40.5%3.1%1.8 $39.89
1/31/20242,620,000 shares $90.02 million +54.1%2.2%1.4 $34.36
1/15/20241,700,000 shares $48.84 million -3.4%1.5%0.9 $28.73
12/31/20231,760,000 shares $51.53 million -1.7%1.5%1 $29.28
12/15/20231,790,000 shares $52.81 million +5.3%1.5%1 $29.51
11/30/20231,700,000 shares $45.80 million -13.3%1.5%0.9 $26.94
11/15/20231,960,000 shares $53.37 million -4.4%1.7%1.1 $27.23
10/31/20232,050,000 shares $47.87 million +1.5%1.8%1.1 $23.35
10/15/20232,020,000 shares $52.34 million +17.4%1.8%1 $25.91
9/30/20231,720,000 shares $42.17 million -3.9%1.6%1 $24.52
9/15/20231,790,000 shares $40.79 million +35.6%1.6%1.1 $22.79
8/31/20231,320,000 shares $30.76 million -15.4%1.2%0.9 $23.30
8/15/20231,560,000 shares $32.74 million +7.6%1.4%1.2 $20.99
7/31/20231,450,000 shares $31.87 million -4.0%1.3%1.3 $21.98
7/15/20231,510,000 shares $23.92 million +7.9%1.5%2 $15.84
6/30/20231,400,000 shares $20.30 million -11.4%1.4%1.9 $14.50
6/15/20231,580,000 shares $21.89 million -14.1%1.6%2.3 $13.86
5/31/20231,840,000 shares $23.42 million -0.5%1.9%3 $12.73
5/15/20231,850,000 shares $20.44 million -2.1%1.8%3.8 $11.05
4/30/20231,890,000 shares $20.53 million +23.5%1.9%3.8 $10.86
4/15/20231,530,000 shares $19.13 million +68.0%1.5%3.2 $12.50
3/31/2023910,500 shares $11.75 million -35.9%0.9%1.9 $12.90
3/15/20231,420,000 shares $16.86 million +18.3%1.4%3.2 $11.87
2/28/20231,200,000 shares $15.54 million -7.0%1.2%2.8 $12.95
2/15/20231,290,000 shares $17.62 million +31.7%1.3%3.1 $13.66
1/31/2023979,800 shares $13.06 million +45.9%1.0%2.5 $13.33
1/15/2023671,400 shares $8.73 million +58.7%0.7%1.6 $13.00
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12/30/2022423,100 shares $4.77 million +43.7%0.4%1 $11.27
12/15/2022294,500 shares $3.21 million +9.6%0.3%0.7 $10.91
11/30/2022268,800 shares $3.00 million +1.0%0.3%0.6 $11.16
11/15/2022266,100 shares $3.03 million +228.9%0.3%0.6 $11.39
10/31/202280,900 shares $886.66 thousand -28.2%0.1%0.2 $10.96
10/15/2022112,600 shares $971.74 thousand -33.9%0.1%0.3 $8.63
9/30/2022170,400 shares $1.43 million -18.1%0.2%0.4 $8.41
9/15/2022208,000 shares $2.03 million +99.0%0.2%0.5 $9.76
8/31/2022104,500 shares $1.08 million -29.2%0.1%0.3 $10.32
8/15/2022147,600 shares $1.66 million -37.6%0.1%0.4 $11.22
7/31/2022236,600 shares $2.49 million +77.2%0.2%0.5 $10.54
7/15/2022133,500 shares $1.30 million +33.5%0.1%0.3 $9.75
6/30/2022100,000 shares $972.00 thousand -6.4%0.1%0.2 $9.72
6/15/2022106,800 shares $1.13 million -51.6%0.1%0.2 $10.60
5/31/2022220,500 shares $2.43 million -39.3%0.2%0.4 $11.03
5/15/2022363,200 shares $3.85 million +34.9%0.4%0.6 $10.59
4/30/2022269,200 shares $3.02 million -7.4%0.3%0.4 $11.23
4/15/2022290,600 shares $3.23 million -4.9%0.3%0.4 $11.12
3/31/2022305,700 shares $3.64 million -35.7%0.3%0.5 $11.91
3/15/2022475,700 shares $5.52 million +13.8%0.5%0.8 $11.60
2/28/2022418,100 shares $4.97 million +2.3%0.4%0.7 $11.89
2/15/2022408,600 shares $5.11 million -35.0%0.4%0.7 $12.51
1/31/2022628,800 shares $7.83 million +62.6%0.6%1.2 $12.45
1/15/2022386,800 shares $4.48 million -1.4%0.4%0.9 $11.58
12/31/2021392,300 shares $4.37 million -6.8%0.4%1 $11.13
12/15/2021420,800 shares $4.44 million -21.4%0.4%1.1 $10.56
11/30/2021535,600 shares $5.48 million -7.3%0.5%1.4 $10.23
11/15/2021577,800 shares $6.67 million +57.9%0.6%1.5 $11.55
10/29/2021365,900 shares $3.59 million -12.9%0.4%1 $9.82
10/15/2021420,300 shares $3.92 million -13.3%0.4%1.1 $9.32

CLS Short Interest - Frequently Asked Questions

Short interest is the volume of Celestica shares that have been sold short but have not yet been closed out or covered. As of September 30th, traders have sold 4,437,263 shares of CLS short. 3.90% of Celestica's shares are currently sold short. Learn More on Celestica'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. CLS shares currently have a short interest ratio of 2.0. Learn More on Celestica'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. 3.90% of Celestica's floating shares are currently sold short.

Celestica saw a increase in short interest in the month of September. As of September 30th, there was short interest totaling 4,437,263 shares, an increase of 14.9% from the previous total of 3,863,438 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.

3.90% of Celestica's shares are currently sold short. Here is how the short interest of companies compare to Celestica: Broadcom Inc. (1.16%), Lumentum Holdings Inc. (8.34%), Zscaler, Inc. (4.30%), Ciena Corporation (2.74%), Eaton Corporation, PLC (2.06%), Fabrinet (4.61%), Jabil, Inc. (2.71%), nVent Electric PLC (3.02%), Vertiv Holdings Co. (3.78%), Flex Ltd. (2.41%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.10 billion), Invesco QQQ ($52.12 billion), iShares Russell 2000 ETF ($25.28 billion), SPDR S&P Biotech ETF ($11.70 billion), Nebius Group N.V. ($10.54 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($9.69 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($9.22 billion), iShares 20+ Year Treasury Bond ETF ($8.80 billion), Financial Select Sector SPDR Fund ($7.65 billion), and Lumentum Holdings Inc. ($7.23 billion). View all of the most shorted stocks.

Short selling CLS is an investing strategy that aims to generate trading profit from Celestica as its price is falling. CLS shares are trading up $5.60 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 Celestica 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 CLS, 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 CLS, twice per month. The most recent reporting period available is September, 30 2026.

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

  • 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 NYSE:CLS is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 10/9/2026. FINRA publishes updated short interest twice a month.
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