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Custom Truck One Source (CTOS) Short Interest Ratio & Short Volume

Custom Truck One Source logo
$8.95 -0.02 (-0.22%)
As of 03:58 PM Eastern
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Custom Truck One Source Short Interest Overview

As of August 14, 2026, Custom Truck One Source (CTOS) had a short interest of 3.58 million shares sold short, representing 1.65% of the public float. This marks a 1.90% increase 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 890,111 shares to cover all short positions.

Current Short Interest
3,576,464 shares
Previous Short Interest
3,509,945 shares
Change Vs. Previous Month
1.90%
Dollar Volume Sold Short
$37.64 million
Short Interest Ratio
3.1 Days to Cover
Last Record Date
August 14, 2026
Outstanding Shares
227,510,000 shares
Short Percent of Float
1.65%
Today's Trading Volume
1,198,875 shares
Average Trading Volume
890,111 shares
Today's Volume Vs. Average
135%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

CTOS Short Interest Over Time

CTOS Days to Cover Over Time

CTOS Percentage of Float Shorted Over Time

Custom Truck One Source 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
8/14/20263,576,464 shares $37.64 million +1.9%1.6%3.13 $10.52
7/31/20263,509,945 shares $36.02 million +7.7%1.6%2.98 $10.26
7/15/20263,260,019 shares $34.15 million +8.0%1.5%3.18 $10.48
6/30/20263,018,553 shares $35.64 million +20.9%1.4%2.35 $11.81
6/15/20262,496,696 shares $26.38 million +19.1%1.2%2.91 $10.57
5/29/20262,096,135 shares $19.99 million +2.1%1.0%2.6 $9.54
5/15/20262,052,289 shares $20.16 million +19.7%1.0%1.57 $9.83
4/30/20261,714,631 shares $16.90 million -23.0%0.8%1.28 $9.86
4/15/20262,225,990 shares $15.95 million +13.5%1.0%3.05 $7.17
3/31/20261,961,641 shares $12.88 million +5.1%0.9%2.65 $6.57
3/13/20261,866,150 shares $10.93 million +6.1%0.9%1.82 $5.86
2/27/20261,758,769 shares $12.62 million -7.7%0.8%2.04 $7.18
2/13/20261,904,520 shares $13.83 million -5.8%0.9%1.98 $7.26
1/30/20262,021,798 shares $12.85 million -3.4%0.9%2.85 $6.36
1/15/20262,093,492 shares $13.39 million -2.7%1.0%1.95 $6.40
12/31/20252,150,529 shares $12.37 million -14.5%1.0%2.82 $5.75
12/15/20252,514,969 shares $15.50 million -9.7%1.2%3.77 $6.17
11/28/20252,785,393 shares $17.80 million -3.5%1.3%2.96 $6.39
11/14/20252,885,346 shares $16.69 million -15.2%1.3%5.93 $5.79
10/31/20253,400,659 shares $20.11 million -5.2%1.6%3.98 $5.92
10/15/20253,590,000 shares $23.57 million +6.9%5.6%4.7 $6.57
9/30/20253,360,000 shares $21.57 million +20.9%5.2%4.2 $6.42
9/15/20252,780,000 shares $16.03 million -12.0%4.3%3.5 $5.77
8/31/20253,160,000 shares $19.39 million -7.3%4.9%4.2 $6.14
8/15/20253,410,000 shares $20.08 million +0.3%5.3%5 $5.89
7/31/20253,400,000 shares $21.17 million -24.6%5.3%5 $6.23
7/15/20254,510,000 shares $25.53 million -10.0%7.0%7 $5.66
6/30/20255,010,000 shares $24.85 million -12.7%7.8%7.3 $4.96
6/15/20255,740,000 shares $26.58 million +6.3%8.9%8.7 $4.63
5/31/20255,400,000 shares $23.27 million +0.2%8.4%7.8 $4.31
5/15/20255,390,000 shares $24.74 million -2.9%8.4%7.1 $4.59
4/30/20255,550,000 shares $22.42 million +8.2%8.6%7.2 $4.04
4/15/20255,130,000 shares $17.57 million +5.6%8.0%6.5 $3.43
3/31/20254,860,000 shares $20.53 million +11.2%7.6%6.4 $4.23
3/15/20254,370,000 shares $20.43 million -8.2%6.8%5.9 $4.68
2/28/20254,760,000 shares $21.16 million -0.6%7.4%6.3 $4.45
2/15/20254,790,000 shares $24.12 million +14.1%7.2%6.9 $5.04
1/31/20254,200,000 shares $21.46 million +3.5%6.3%5.7 $5.11
1/15/20254,060,000 shares $18.88 million -2.4%6.9%5.8 $4.65
12/31/20244,160,000 shares $20.01 million -6.3%7.1%6.8 $4.81
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12/15/20244,440,000 shares $23.04 million -0.7%8.1%7.4 $5.19
11/30/20244,470,000 shares $26.73 million +6.2%8.3%7.8 $5.98
11/15/20244,210,000 shares $21.43 million -8.5%7.8%6.7 $5.09
10/31/20244,600,000 shares $18.81 million -3.8%8.5%7.7 $4.09
10/15/20244,780,000 shares $16.11 million -0.6%8.8%7.9 $3.37
9/30/20244,810,000 shares $16.57 million -5.5%8.8%7.4 $3.45
9/15/20245,090,000 shares $18.99 million +9.7%9.3%7.6 $3.73
8/31/20244,640,000 shares $19.02 million +4.5%8.9%6.8 $4.10
8/15/20244,440,000 shares $19.43 million +9.4%8.0%7.1 $4.38
7/31/20244,060,000 shares $20.36 million -0.7%5.0%5.9 $5.02
7/15/20244,090,000 shares $18.24 million -5.1%4.9%5.8 $4.46
6/30/20244,310,000 shares $18.75 million +7.0%5.2%6.4 $4.35
6/15/20244,030,000 shares $17.21 million +14.2%4.8%6 $4.27
5/31/20243,530,000 shares $16.84 million +11.7%4.2%5 $4.77
5/15/20243,160,000 shares $14.38 million +1.6%3.8%4.5 $4.55
4/30/20243,110,000 shares $15.52 million +28.0%5.7%5 $4.99
4/15/20242,430,000 shares $13.41 million +44.6%4.5%4.5 $5.52
3/31/20241,680,000 shares $9.78 million +24.4%3.0%3.4 $5.82
3/15/20241,350,000 shares $7.22 million -16.2%2.4%2.9 $5.35
2/29/20241,610,000 shares $10.34 million -1.2%2.8%3.5 $6.42
2/15/20241,630,000 shares $11.40 million +32.5%2.8%3.5 $7.00
1/31/20241,230,000 shares $8.04 million -16.9%2.1%2.2 $6.54
1/15/20241,480,000 shares $9.24 million +0.7%2.6%2.6 $6.24
12/31/20231,470,000 shares $9.08 million +5.8%2.6%2.6 $6.18
12/15/20231,390,000 shares $8.67 million -13.7%2.4%2.5 $6.24
11/30/20231,610,000 shares $9.35 million +5.2%2.7%2.9 $5.81
11/15/20231,530,000 shares $8.23 million +9.3%2.5%3.1 $5.38
10/31/20231,400,000 shares $8.08 million -14.6%2.3%3.5 $5.77
10/15/20231,640,000 shares $9.66 million -7.3%2.7%4.7 $5.89
9/30/20231,770,000 shares $10.97 million -2.2%2.9%5.7 $6.20
9/15/20231,810,000 shares $11.82 million -0.6%3.0%5.5 $6.53
8/31/20231,820,000 shares $12.21 million -16.9%3.0%5.9 $6.71
8/15/20232,190,000 shares $14.34 million -0.9%3.6%6.9 $6.55
7/31/20232,210,000 shares $15.29 million -9.4%3.7%7 $6.92
7/15/20232,440,000 shares $16.52 million -0.4%4.1%7.8 $6.77
6/30/20232,450,000 shares $16.51 million -10.3%4.2%7.7 $6.74
6/15/20232,730,000 shares $19.63 million +105.3%4.6%8.8 $7.19
5/31/20231,330,000 shares $8.58 million +8.1%2.3%4.5 $6.45
5/15/20231,230,000 shares $8.02 million -25.9%2.1%4.6 $6.52
4/30/20231,660,000 shares $10.42 million +28.7%2.8%6.5 $6.28
4/15/20231,290,000 shares $8.37 million +0.8%2.1%4.9 $6.49
3/31/20231,280,000 shares $8.69 million -4.5%2.1%4.8 $6.79
3/15/20231,340,000 shares $9.17 million -8.2%2.2%5.3 $6.84
2/28/20231,460,000 shares $10.57 million -24.0%2.4%6.6 $7.24
2/15/20231,920,000 shares $13.63 million +20.0%3.1%8.6 $7.10
1/31/20231,600,000 shares $11.33 million -17.5%2.6%6.3 $7.08
1/15/20231,940,000 shares $13.89 million +15.5%3.1%7.7 $7.16
12/30/20221,680,000 shares $10.62 million -26.6%2.7%6.3 $6.32
12/15/20222,290,000 shares $14.15 million +33.9%3.7%8.2 $6.18
11/30/20221,710,000 shares $11.70 million -10.5%2.7%5.9 $6.84
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11/15/20221,910,000 shares $12.13 million -8.2%3.0%6.7 $6.35
10/31/20222,080,000 shares $14.41 million -1.0%3.3%8.1 $6.93
10/15/20222,100,000 shares $12.81 million -6.3%3.5%8.3 $6.10
9/30/20222,240,000 shares $13.06 million -11.5%3.7%9.4 $5.83
9/15/20222,530,000 shares $17.13 million +9.5%4.2%9 $6.77
8/31/20222,310,000 shares $15.20 million +3.1%3.8%7.6 $6.58
8/15/20222,240,000 shares $16.71 million +3.2%3.7%7 $7.46
7/31/20222,170,000 shares $13.43 million -11.1%3.6%5.9 $6.19
7/15/20222,440,000 shares $12.47 million -6.5%4.1%6.1 $5.11
6/30/20222,610,000 shares $14.62 million +12.0%4.4%6.3 $5.60
6/15/20222,330,000 shares $11.25 million +12.0%3.9%5.8 $4.83
5/31/20222,080,000 shares $12.40 million +14.3%3.5%4.9 $5.96
5/15/20221,820,000 shares $10.76 million -21.6%3.1%4.1 $5.91
4/30/20222,320,000 shares $15.24 million -18.0%3.9%5.1 $6.57
4/15/20222,830,000 shares $22.98 million +17.4%4.8%5.4 $8.12
3/31/20222,410,000 shares $20.22 million +1.7%4.0%4.6 $8.39
3/15/20222,370,000 shares $20.26 million -6.0%3.9%4.6 $8.55
2/28/20222,520,000 shares $19.81 million +4.1%4.2%5.1 $7.86
2/15/20222,420,000 shares $19.51 million +24.7%4.1%4.6 $8.06
1/31/20221,940,000 shares $15.95 million +22.0%3.3%3.1 $8.22
1/15/20221,590,000 shares $12.40 million -14.1%2.7%3 $7.80
12/31/20211,850,000 shares $14.80 million +3.9%3.2%3.7 $8.00
12/15/20211,780,000 shares $13.24 million -10.1%3.0%3.5 $7.44
11/30/20211,980,000 shares $14.89 million -31.3%3.4%3 $7.52
11/15/20212,880,000 shares $32.17 million -1.0%6.4%4.5 $11.17
10/29/20212,910,000 shares $26.34 million -2.4%6.5%5.7 $9.05
10/15/20212,980,000 shares $24.97 million +4.6%6.6%6 $8.38
9/30/20212,850,000 shares $26.59 million +90.0%6.2%5.4 $9.33
9/15/20211,500,000 shares $14.09 million -18.0%3.3%3 $9.39

CTOS Short Interest - Frequently Asked Questions

Short interest is the volume of Custom Truck One Source shares that have been sold short but have not yet been covered or closed out. As of August 14th, investors have sold 3,576,464 shares of CTOS short. 1.65% of Custom Truck One Source's shares are currently sold short. Learn More on Custom Truck One Source'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. CTOS shares currently have a short interest ratio of 3.1. Learn More on Custom Truck One Source'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. 1.65% of Custom Truck One Source's floating shares are currently sold short.

Custom Truck One Source saw a increase in short interest in August. As of August 14th, there was short interest totaling 3,576,464 shares, an increase of 1.9% from the previous total of 3,509,945 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.

1.65% of Custom Truck One Source's shares are currently sold short. Here is how the short interest of companies in the industry of "trading companies & distributors" compare to Custom Truck One Source: Core & Main, Inc. (5.65%), MSC Industrial Direct Company, Inc. (4.24%), GATX Corporation (5.35%), Rush Enterprises, Inc. (0.32%), Rush Enterprises, Inc. (6.65%), Herc Holdings Inc. (6.25%), Xometry, Inc. (7.53%), EquipmentShare.com Inc (8.94%), SiteOne Landscape Supply, Inc. (6.71%), DXP Enterprises, Inc. (3.01%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($71.57 billion), Invesco QQQ ($46.97 billion), iShares Russell 2000 ETF ($24.02 billion), Nebius Group N.V. ($15.37 billion), Sandisk Corporation ($12.60 billion), SPDR S&P Biotech ETF ($12.14 billion), Western Digital Corporation ($10.32 billion), iShares 20+ Year Treasury Bond ETF ($8.38 billion), VanEck Semiconductor ETF ($7.62 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.07 billion). View all of the most shorted stocks.

Short selling CTOS is an investing strategy that aims to generate trading profit from Custom Truck One Source as its price is falling. CTOS shares are trading down $0.02 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 Custom Truck One Source 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 CTOS, 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 CTOS, twice per month. The most recent reporting period available is August, 14 2026.

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

  • 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:CTOS is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/25/2026. FINRA publishes updated short interest twice a month.
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