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Innospec (IOSP) Short Interest Ratio & Short Volume

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$80.53 -0.07 (-0.09%)
As of 12:57 PM Eastern
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Innospec Short Interest Overview

As of May 15, 2026, Innospec (IOSP) had a short interest of 341,197 shares sold short, representing 1.41% of the public float. This marks a -30.48% decrease in short interest since the prior report. The short interest ratio (days to cover) is 1.2, meaning it would take 1.2 days of the average trading volume of 218,915 shares to cover all short positions.

Current Short Interest
341,197 shares
Previous Short Interest
490,802 shares
Change Vs. Previous Month
-30.48%
Dollar Volume Sold Short
$26.66 million
Short Interest Ratio
1.2 Days to Cover
Last Record Date
May 15, 2026
Outstanding Shares
24,630,000 shares
Short Percent of Float
1.41%
Today's Trading Volume
61,928 shares
Average Trading Volume
218,915 shares
Today's Volume Vs. Average
28%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

IOSP Short Interest Over Time

IOSP Days to Cover Over Time

IOSP Percentage of Float Shorted Over Time

Innospec 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
5/15/2026341,197 shares $26.66 million -30.5%1.4%1.22 $78.15
4/30/2026490,802 shares $37.43 million +6.5%2.0%3.17 $76.26
4/15/2026460,752 shares $34.40 million +14.2%1.9%2.15 $74.66
3/31/2026403,648 shares $29.47 million +25.7%1.6%1.12 $73.02
3/13/2026321,014 shares $22.03 million -24.3%1.3%1.39 $68.63
2/27/2026423,870 shares $32.46 million +10.4%1.7%1.77 $76.58
2/13/2026383,909 shares $33.24 million +28.9%1.6%1.96 $86.58
1/30/2026297,899 shares $24.34 million -17.2%1.2%2.47 $81.72
1/15/2026359,671 shares $29.45 million -31.0%1.5%2.26 $81.89
12/31/2025521,031 shares $39.88 million +21.9%2.1%2.23 $76.54
12/15/2025427,466 shares $33.50 million -12.8%1.7%1.51 $78.38
11/28/2025490,030 shares $36.62 million +10.0%2.0%1.48 $74.74
11/14/2025445,524 shares $33.01 million -15.5%1.8%2.15 $74.09
10/31/2025527,372 shares $38.80 million -8.9%2.2%3.52 $73.58
10/15/2025579,100 shares $43.39 million +36.6%2.4%2.9 $74.93
9/30/2025424,000 shares $32.72 million +26.8%1.7%2.1 $77.16
9/15/2025334,500 shares $26.97 million +6.1%1.4%1.6 $80.62
8/31/2025315,200 shares $27.61 million -27.6%1.3%1.5 $87.59
8/15/2025435,400 shares $36.11 million +35.3%1.8%2.1 $82.94
7/31/2025321,800 shares $25.71 million +23.3%1.3%1.5 $79.90
7/15/2025260,900 shares $22.20 million -29.9%1.1%1.3 $85.08
6/30/2025372,300 shares $31.31 million +103.2%1.5%1.8 $84.09
6/15/2025183,200 shares $15.53 million -27.9%0.7%0.9 $84.77
5/31/2025253,900 shares $21.67 million +5.6%1.0%1.1 $85.33
5/15/2025240,500 shares $21.23 million -18.0%1.0%1 $88.27
4/30/2025293,100 shares $26.23 million -11.6%1.2%1.3 $89.48
4/15/2025331,500 shares $28.92 million -13.5%1.3%1.5 $87.23
3/31/2025383,000 shares $36.29 million -16.5%1.6%1.8 $94.75
3/15/2025458,800 shares $45.00 million +52.8%1.9%2.2 $98.09
2/28/2025300,200 shares $31.04 million +14.5%1.2%2 $103.41
2/15/2025262,100 shares $28.36 million -9.3%1.1%1.9 $108.19
1/31/2025289,000 shares $32.76 million -10.8%1.2%2.2 $113.35
1/15/2025324,000 shares $36.63 million -15.6%1.3%2.7 $113.06
12/31/2024384,000 shares $42.26 million +28.1%1.6%3.3 $110.06
12/15/2024299,800 shares $34.73 million +7.5%1.2%2.6 $115.86
11/30/2024278,900 shares $33.08 million +28.2%1.1%2.7 $118.61
11/15/2024217,500 shares $25.89 million -3.9%0.9%1.9 $119.03
10/31/2024226,400 shares $24.40 million -12.3%0.9%1.9 $107.78
10/15/2024258,100 shares $29.49 million +3.1%1.1%2.1 $114.27
9/30/2024250,400 shares $28.32 million -14.7%1.0%1.9 $113.09
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9/15/2024293,400 shares $31.97 million -20.3%1.2%2.2 $108.96
8/31/2024368,200 shares $42.44 million +43.0%1.5%2.7 $115.26
8/15/2024257,500 shares $28.14 million +16.0%1.1%2 $109.28
7/31/2024221,900 shares $29.10 million +5.9%0.9%1.7 $131.14
7/15/2024209,600 shares $26.31 million +8.2%0.9%1.8 $125.51
6/30/2024193,800 shares $23.95 million +14.5%0.8%1.8 $123.59
6/15/2024169,300 shares $20.81 million -16.2%0.7%1.6 $122.91
5/31/2024202,000 shares $26.42 million +16.8%0.8%2 $130.80
5/15/2024173,000 shares $22.76 million -9.2%0.7%1.9 $131.58
4/30/2024190,500 shares $22.86 million -14.2%0.8%2.2 $120.00
4/15/2024221,900 shares $27.03 million +1.4%0.9%2.6 $121.79
3/31/2024218,800 shares $28.21 million -20.1%0.9%2.4 $128.94
3/15/2024273,800 shares $33.42 million +21.1%1.1%3 $122.07
2/29/2024226,100 shares $28.10 million -2.8%0.9%2.4 $124.27
2/15/2024232,500 shares $29.22 million -1.2%1.0%2.5 $125.66
1/31/2024235,200 shares $27.31 million +34.6%1.0%2.6 $116.11
1/15/2024174,700 shares $20.48 million -17.4%0.7%2 $117.23
12/31/2023211,600 shares $26.08 million -10.3%0.9%2.5 $123.24
12/15/2023236,000 shares $28.29 million +58.1%1.0%3 $119.87
11/30/2023149,300 shares $15.69 million +7.1%0.6%2 $105.07
11/15/2023139,400 shares $15.23 million -7.4%0.6%1.8 $109.26
10/31/2023150,600 shares $14.76 million +20.5%0.6%2 $98.00
10/15/2023125,000 shares $12.34 million -3.0%0.5%1.6 $98.74
9/30/2023128,800 shares $13.16 million -22.1%0.5%1.6 $102.20
9/15/2023165,400 shares $17.67 million +14.1%0.7%2.1 $106.84
8/31/2023145,000 shares $15.58 million +2.2%0.6%1.9 $107.42
8/15/2023141,900 shares $14.90 million -5.3%0.6%1.8 $105.03
7/31/2023149,900 shares $16.06 million -7.1%0.6%2 $107.14
7/15/2023161,300 shares $16.33 million +21.0%0.7%2.1 $101.22
6/30/2023133,300 shares $13.39 million -24.5%0.5%1.7 $100.44
6/15/2023176,500 shares $17.81 million -3.8%0.7%2 $100.89
5/31/2023183,500 shares $16.95 million -8.3%0.8%2 $92.36
5/15/2023200,000 shares $19.49 million No Change0.8%2 $97.45
10/31/2022316,100 shares $31.61 million -20.6%1.3%3.7 $99.99
10/15/2022398,200 shares $35.59 million +10.7%1.6%4.8 $89.37
9/30/2022359,700 shares $30.82 million +6.8%1.5%4.3 $85.67
9/15/2022336,800 shares $29.20 million +1.4%1.4%3.8 $86.70
8/31/2022332,200 shares $31.05 million No Change1.4%3.7 $93.46
8/15/2022332,200 shares $32.98 million -6.5%1.4%3.6 $99.27
7/31/2022355,100 shares $36.22 million +1.2%1.5%3.4 $102.00
7/15/2022350,800 shares $32.70 million +10.1%1.4%3.2 $93.22
6/30/2022318,700 shares $30.53 million -4.7%1.3%3 $95.79
6/15/2022334,300 shares $31.55 million -3.9%1.4%3.1 $94.39
5/31/2022347,800 shares $35.49 million +12.5%1.4%3.7 $102.03
5/15/2022309,300 shares $31.39 million +13.2%1.3%3.2 $101.49
4/30/2022273,300 shares $26.05 million +10.9%1.1%3.2 $95.31
4/15/2022246,400 shares $23.12 million -12.1%1.0%3 $93.83
3/31/2022280,400 shares $25.95 million -16.8%N/A0 $92.55
3/15/2022337,200 shares $30.77 million +7.3%1.4%3.8 $91.24
2/28/2022314,300 shares $30.02 million +8.1%1.3%2.8 $95.50
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2/15/2022290,800 shares $27.31 million +25.6%1.2%2.6 $93.93
1/31/2022231,500 shares $21.52 million -0.1%1.0%1.9 $92.96
1/15/2022231,700 shares $22.84 million +8.4%N/A0 $98.56
12/31/2021213,700 shares $19.31 million -27.4%0.9%1.7 $90.34
12/15/2021294,500 shares $26.89 million +28.2%1.2%2.3 $91.30
11/30/2021229,800 shares $18.66 million +25.9%0.9%2.1 $81.20
11/15/2021182,600 shares $16.80 million -52.8%0.8%1.7 $92.02
10/29/2021387,000 shares $35.07 million +5.1%1.6%4 $90.61
10/15/2021368,200 shares $31.55 million +0.8%1.5%3.6 $85.70
9/30/2021365,200 shares $30.76 million +2.1%1.5%3.6 $84.22
9/15/2021357,600 shares $31.04 million -7.6%1.5%3.2 $86.80
8/31/2021387,200 shares $36.24 million +2.4%1.6%3.7 $93.60
8/13/2021378,200 shares $35.58 million +36.1%1.6%3.5 $94.08
7/30/2021277,800 shares $24.57 million -6.5%1.1%2.5 $88.45
7/15/2021297,100 shares $26.82 million +45.4%1.2%2.9 $90.27
6/30/2021204,300 shares $18.51 million -33.2%0.8%1.9 $90.61
6/15/2021305,800 shares $29.67 million -6.1%1.3%3.3 $97.03

IOSP Short Interest - Frequently Asked Questions

Short interest is the volume of Innospec shares that have been sold short but have not yet been closed out or covered. As of May 15th, traders have sold 341,197 shares of IOSP short. 1.41% of Innospec's shares are currently sold short. Learn More on Innospec'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. IOSP shares currently have a short interest ratio of 1.2. Learn More on Innospec'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. 1.41% of Innospec's floating shares are currently sold short.

Innospec saw a drop in short interest during the month of May. As of May 15th, there was short interest totaling 341,197 shares, a drop of 30.5% from the previous total of 490,802 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.

1.41% of Innospec's shares are currently sold short. Here is how the short interest of companies compare to Innospec: First Financial Bancorp. (3.76%), First Merchants Corporation (1.91%), International Bancshares Corporation (2.98%), United Bankshares, Inc. (4.05%), Avient Corporation (2.11%), Cabot Corporation (6.19%), F.N.B. Corporation (7.63%), H. B. Fuller Company (4.06%), Minerals Technologies Inc. (1.45%), Stepan Company (1.84%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($80.71 billion), Invesco QQQ ($47.96 billion), iShares Russell 2000 ETF ($22.13 billion), Western Digital Corporation ($14.35 billion), Sandisk Corporation ($12.86 billion), Salesforce Inc. ($10.89 billion), Nebius Group N.V. ($9.92 billion), SPDR S&P Biotech ETF ($9.72 billion), Lumentum Holdings Inc. ($8.89 billion), and iShares 20+ Year Treasury Bond ETF ($8.18 billion). View all of the most shorted stocks.

Short selling IOSP is an investing strategy that aims to generate trading profit from Innospec as its price is falling. IOSP shares are trading down $0.10 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 Innospec 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 IOSP, 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 IOSP, twice per month. The most recent reporting period available is May, 15 2026.

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

  • 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:IOSP) was last updated on 6/4/2026 by MarketBeat.com Staff.
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