Innospec Stock Price History
NASDAQ: IOSPIndustrialsMajor ChemicalsUSD
95.65-2.04 (-2.09%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
IOSP price history at a glance
The price history for Innospec (IOSP) on this page begins on May 11, 1998, when the stock closed at $16.25; it most recently closed at $95.65 on October 5, 2026. The highest price in this record is $133.71, reached on May 6, 2024; the latest close is 28.5% below that peak. Across the 27 complete calendar years in the table, IOSP finished higher in 16 and lower in 11. Its best year was 2006 (+186.1%) and its worst was 2008 (-64.5%).
Over roughly 28 years the share price changed +488.6%, a 6.4% compound annual price return (excluding dividends). In the last 12 months alone, IOSP has gained 25.4%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 1998
- $133.71
- Date of high
- May 6, 2024
- Low since 1998
- $2.61
- Date of low
- Mar 9, 2009
- 52-week high
- $100.48
- 52-week low
- $65.51
- Last close
- $95.65
IOSP returns
1 week
-1.81%
1 month
+2.22%
3 months
+17.19%
6 months
+26.42%
Year to date
+24.97%
1 year
+25.38%
3 years
-3.13%
5 years
+11.61%
IOSP price return, excluding dividends.
IOSP annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 95.65 | +25.39% |
| 2025 | 76.28 | -29.95% |
| 2024 | 108.90 | -11.64% |
| 2023 | 123.24 | +19.81% |
| 2022 | 102.86 | +13.86% |
| 2021 | 90.34 | -0.43% |
| 2020 | 90.73 | -11.86% |
| 2019 | 102.94 | +64.02% |
| 2018 | 62.76 | -11.10% |
| 2017 | 70.60 | +3.07% |
| 2016 | 68.50 | +26.13% |
| 2015 | 54.31 | +27.76% |
| 2014 | 42.51 | -6.86% |
| 2013 | 45.64 | +25.49% |
| 2012 | 36.37 | +29.57% |
| 2011 | 28.07 | +37.60% |
| 2010 | 20.40 | +102.18% |
| 2009 | 10.09 | +72.18% |
| 2008 | 5.86 | -64.53% |
| 2007 | 16.52 | -29.02% |
| 2006 | 23.28 | +186.11% |
| 2005 | 8.14 | -21.82% |
| 2004 | 10.41 | +0.29% |
| 2003 | 10.38 | +34.65% |
| 2002 | 7.71 | -9.78% |
| 2001 | 8.54 | +48.52% |
| 2000 | 5.75 | +10.84% |
| 1999 | 5.19 | -25.23% |
| 1998* | 6.94 | -57.31% |
* Partial year: the record begins after the start of 1998; return measured from the first available close.
2026 return is year to date.
IOSP daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 97.89 | 97.89 | 95.53 | 95.65 | -2.09% | |
| 97.28 | 98.49 | 96.06 | 97.69 | +0.28% | |
| 97.39 | 98.64 | 96.85 | 97.42 | -1.15% | |
| 98.27 | 99.22 | 97.32 | 98.55 | +0.92% | |
| 97.62 | 98.60 | 96.72 | 97.65 | +0.25% | |
| 96.43 | 98.67 | 95.44 | 97.41 | +2.35% | |
| 94.83 | 95.69 | 93.64 | 95.17 | -0.16% | |
| 97.16 | 97.24 | 95.09 | 95.32 | -1.45% | |
| 97.56 | 98.09 | 96.11 | 96.72 | -1.19% | |
| 98.72 | 100.48 | 97.58 | 97.88 | -0.85% | |
| 97.10 | 98.77 | 96.87 | 98.72 | +1.91% | |
| 96.61 | 97.50 | 95.76 | 96.87 | +0.28% | |
| 96.08 | 98.00 | 95.77 | 96.60 | +0.54% | |
| 93.52 | 96.40 | 92.59 | 96.08 | +3.80% | |
| 92.85 | 93.34 | 92.30 | 92.56 | -0.63% | |
| 92.79 | 94.05 | 91.55 | 93.15 | -0.03% | |
| 93.88 | 93.88 | 92.32 | 93.18 | +0.27% | |
| 92.27 | 94.08 | 91.11 | 92.93 | +1.21% | |
| 91.96 | 92.23 | 91.00 | 91.82 | -0.15% | |
| 93.33 | 93.33 | 91.80 | 91.96 | -1.36% | |
| 93.83 | 93.83 | 92.60 | 93.23 | +0.16% | |
| 93.90 | 94.35 | 92.00 | 93.08 | -0.52% | |
| 92.74 | 94.05 | 92.40 | 93.57 | +0.21% | |
| 93.28 | 96.14 | 92.49 | 93.37 | -0.62% | |
| 92.43 | 94.28 | 92.40 | 93.95 | +0.89% | |
| 94.36 | 94.55 | 92.44 | 93.12 | -0.68% | |
| 92.60 | 95.38 | 92.51 | 93.76 | +1.24% | |
| 93.12 | 93.87 | 92.30 | 92.61 | -1.33% | |
| 95.49 | 95.95 | 93.62 | 93.86 | -1.59% | |
| 95.73 | 96.68 | 94.92 | 95.38 | +0.04% | |
| 94.70 | 96.41 | 93.91 | 95.34 | -0.33% | |
| 94.51 | 96.14 | 94.16 | 95.66 | +1.38% | |
| 94.73 | 94.78 | 93.14 | 94.36 | -0.39% | |
| 93.70 | 94.98 | 92.81 | 94.73 | +1.17% | |
| 93.71 | 93.88 | 92.76 | 93.63 | +0.76% | |
| 92.83 | 94.58 | 91.80 | 92.92 | -0.90% | |
| 94.47 | 95.01 | 93.06 | 93.76 | +0.21% | |
| 93.86 | 94.65 | 93.05 | 93.56 | -0.29% | |
| 93.08 | 94.18 | 93.07 | 93.83 | -0.02% | |
| 93.82 | 94.41 | 93.44 | 93.85 | -0.07% | |
| 93.54 | 94.67 | 93.28 | 93.92 | +0.86% | |
| 93.93 | 94.45 | 92.69 | 93.12 | -0.90% | |
| 93.22 | 94.56 | 92.55 | 93.97 | +1.16% | |
| 91.88 | 93.61 | 91.84 | 92.89 | +0.49% | |
| 91.67 | 92.61 | 89.65 | 92.44 | +0.99% | |
| 92.50 | 94.17 | 90.93 | 91.53 | -0.47% | |
| 90.28 | 93.34 | 88.05 | 91.96 | +6.07% | |
| 85.53 | 87.03 | 85.04 | 86.70 | +1.43% | |
| 86.22 | 87.85 | 85.42 | 85.48 | -0.58% | |
| 85.29 | 86.26 | 83.78 | 85.98 | -0.10% | |
| 85.28 | 86.50 | 84.66 | 86.07 | +1.32% | |
| 85.64 | 86.36 | 84.59 | 84.95 | -1.11% | |
| 86.38 | 87.69 | 85.66 | 85.90 | +0.32% | |
| 84.94 | 85.85 | 84.15 | 85.63 | +1.03% | |
| 84.63 | 85.39 | 83.77 | 84.76 | +0.80% | |
| 84.41 | 86.13 | 82.89 | 84.09 | -1.42% | |
| 84.63 | 85.72 | 84.21 | 85.30 | +0.95% | |
| 83.49 | 84.81 | 83.20 | 84.50 | +0.66% | |
| 83.98 | 84.54 | 83.05 | 83.95 | -0.36% | |
| 85.46 | 86.64 | 83.94 | 84.25 | -1.42% | |
| 83.17 | 85.58 | 83.17 | 85.46 | +2.94% | |
| 81.99 | 83.22 | 81.87 | 83.02 | +1.69% | |
| 82.39 | 82.85 | 81.45 | 81.64 | -0.48% | |
| 81.93 | 82.89 | 81.39 | 82.03 | +0.50% | |
| 80.86 | 82.42 | 80.86 | 81.62 | +1.11% | |
| 80.63 | 82.00 | 79.44 | 80.72 | -0.11% | |
| 81.27 | 81.39 | 79.74 | 80.81 | -1.04% | |
| 82.69 | 82.69 | 81.20 | 81.66 | -0.91% | |
| 82.72 | 82.95 | 81.57 | 82.41 | -0.83% | |
| 81.93 | 83.12 | 81.54 | 83.10 | +1.63% | |
| 81.49 | 82.52 | 80.93 | 81.77 | +0.47% | |
| 81.00 | 82.09 | 80.55 | 81.39 | +0.84% | |
| 82.07 | 82.38 | 80.24 | 80.71 | -2.32% | |
| 82.93 | 83.25 | 80.65 | 82.63 | -0.22% | |
| 82.85 | 84.29 | 80.86 | 82.81 | -0.70% | |
| 81.84 | 84.02 | 81.20 | 83.39 | +1.89% | |
| 82.47 | 83.70 | 81.67 | 81.84 | -0.76% | |
| 82.42 | 83.22 | 82.07 | 82.47 | -0.31% | |
| 83.70 | 83.84 | 82.28 | 82.73 | -0.46% | |
| 83.33 | 84.84 | 82.86 | 83.11 | -0.75% | |
| 85.89 | 86.24 | 83.33 | 83.74 | -1.61% | |
| 86.70 | 87.82 | 84.92 | 85.11 | -1.71% | |
| 86.22 | 87.35 | 86.01 | 86.59 | +0.85% | |
| 83.72 | 85.94 | 83.08 | 85.86 | +3.01% | |
| 83.23 | 83.99 | 82.95 | 83.35 | +0.63% | |
| 82.04 | 83.32 | 81.89 | 82.83 | +1.78% | |
| 80.85 | 81.89 | 80.77 | 81.38 | +0.87% | |
| 80.60 | 82.09 | 80.07 | 80.68 | +0.04% | |
| 81.08 | 81.50 | 80.13 | 80.65 | +0.06% | |
| 81.47 | 82.63 | 80.53 | 80.60 | -1.29% | |
| 81.62 | 82.79 | 80.35 | 81.65 | -0.34% | |
| 82.10 | 82.14 | 80.99 | 81.93 | -1.22% | |
| 82.00 | 83.32 | 80.73 | 82.94 | +0.79% | |
| 81.80 | 82.32 | 81.20 | 82.29 | 0.00% | |
| 81.96 | 82.62 | 81.70 | 82.29 | +0.40% | |
| 79.87 | 82.06 | 79.87 | 81.96 | +2.99% | |
| 78.91 | 79.76 | 78.47 | 79.58 | +1.08% | |
| 77.90 | 78.92 | 76.80 | 78.73 | +0.09% | |
| 76.87 | 78.78 | 76.16 | 78.66 | +2.33% | |
| 78.00 | 78.13 | 76.52 | 76.87 | -2.76% | |
| 78.25 | 79.68 | 78.15 | 79.05 | +1.15% | |
| 79.50 | 79.93 | 77.69 | 78.15 | -2.31% | |
| 80.33 | 80.90 | 79.59 | 80.00 | +0.39% | |
| 80.47 | 80.74 | 78.79 | 79.69 | -0.93% | |
| 80.95 | 81.35 | 78.98 | 80.44 | -0.47% | |
| 80.55 | 82.61 | 80.15 | 80.82 | +0.34% | |
| 78.82 | 81.00 | 77.94 | 80.55 | +5.10% | |
| 77.91 | 79.03 | 76.59 | 76.64 | -1.33% | |
| 79.36 | 79.36 | 77.48 | 77.67 | -0.67% | |
| 77.26 | 79.20 | 77.26 | 78.19 | +2.24% | |
| 76.49 | 77.20 | 75.13 | 76.48 | -0.46% | |
| 76.94 | 77.37 | 75.57 | 76.83 | +0.75% | |
| 75.09 | 76.62 | 74.64 | 76.26 | +0.86% | |
| 76.12 | 76.53 | 75.45 | 75.61 | -1.34% | |
| 77.81 | 78.02 | 76.45 | 76.64 | -1.34% | |
| 76.82 | 78.02 | 76.39 | 77.68 | +0.69% | |
| 76.46 | 77.29 | 75.81 | 77.15 | +0.64% | |
| 75.25 | 76.82 | 75.00 | 76.66 | +2.25% | |
| 75.75 | 76.12 | 74.86 | 74.97 | -0.66% | |
| 75.35 | 75.78 | 74.85 | 75.47 | -0.01% | |
| 75.95 | 76.43 | 75.11 | 75.48 | -0.93% | |
| 75.47 | 77.90 | 75.47 | 76.19 | +1.46% | |
| 74.48 | 76.22 | 74.48 | 75.09 | +0.58% | |
| 74.83 | 75.78 | 71.19 | 74.66 | -0.74% | |
| 76.57 | 76.62 | 75.10 | 75.22 | -1.76% | |
| 75.60 | 76.57 | 74.29 | 76.57 | +1.20% | |
| 75.68 | 76.17 | 75.02 | 75.66 | -0.22% | |
| 75.05 | 76.86 | 74.54 | 75.83 | +0.09% | |
| 74.04 | 75.93 | 74.03 | 75.76 | +3.95% | |
| 71.96 | 73.01 | 71.51 | 72.88 | +0.89% | |
| 73.77 | 73.83 | 71.94 | 72.24 | -2.10% | |
| 73.20 | 74.19 | 72.66 | 73.79 | +0.26% | |
| 73.22 | 74.29 | 73.06 | 73.60 | +0.79% | |
| 73.29 | 74.37 | 72.07 | 73.02 | -0.23% | |
| 72.74 | 74.13 | 72.35 | 73.19 | +1.37% | |
| 72.00 | 72.86 | 70.93 | 72.20 | -0.23% | |
| 70.30 | 72.48 | 70.30 | 72.37 | +2.29% | |
| 68.85 | 70.84 | 67.78 | 70.75 | +4.20% | |
| 67.21 | 69.36 | 66.69 | 67.90 | +0.86% | |
| 67.63 | 68.43 | 66.77 | 67.32 | +2.17% | |
| 67.20 | 67.60 | 65.51 | 65.89 | -1.99% | |
| 67.10 | 67.71 | 66.20 | 67.23 | -0.46% | |
| 68.11 | 68.88 | 67.29 | 67.54 | -1.93% | |
| 68.57 | 73.36 | 68.14 | 68.87 | +1.10% | |
| 68.91 | 69.39 | 68.11 | 68.12 | -0.74% | |
| 68.93 | 70.10 | 67.84 | 68.63 | -0.29% | |
| 69.26 | 70.07 | 68.67 | 68.83 | -1.30% | |
| 70.65 | 73.88 | 69.38 | 69.74 | -1.22% | |
| 71.31 | 71.92 | 70.37 | 70.60 | -1.16% | |
| 70.97 | 72.02 | 69.23 | 71.43 | -0.94% | |
| 73.28 | 74.00 | 70.86 | 72.11 | -2.84% | |
| 76.32 | 76.56 | 74.18 | 74.22 | -3.64% | |
| 76.79 | 77.35 | 75.00 | 77.02 | +0.85% | |
| 75.42 | 76.76 | 74.10 | 76.37 | -0.87% | |
| 75.96 | 77.30 | 75.08 | 77.04 | +0.60% | |
| 77.08 | 77.26 | 75.50 | 76.58 | -1.29% | |
| 78.48 | 78.54 | 76.88 | 77.58 | -0.73% | |
| 79.41 | 79.41 | 77.09 | 78.15 | -1.45% | |
| 79.10 | 80.22 | 78.67 | 79.30 | +0.41% | |
| 81.09 | 81.14 | 78.00 | 78.98 | -2.76% | |
| 82.52 | 82.84 | 80.76 | 81.22 | -1.74% | |
| 85.01 | 86.15 | 81.51 | 82.66 | -4.28% | |
| 89.46 | 92.14 | 85.84 | 86.36 | +0.26% | |
| 86.84 | 87.53 | 85.02 | 86.14 | -0.51% | |
| 87.10 | 87.24 | 86.24 | 86.58 | -0.35% | |
| 88.52 | 90.13 | 85.98 | 86.88 | -1.74% | |
| 87.97 | 89.01 | 87.56 | 88.42 | +0.79% | |
| 86.53 | 88.13 | 86.04 | 87.73 | +1.85% | |
| 86.19 | 86.38 | 85.21 | 86.14 | -0.20% | |
| 86.19 | 87.25 | 85.84 | 86.31 | +0.37% | |
| 86.50 | 87.04 | 85.17 | 85.99 | -1.04% | |
| 84.80 | 88.16 | 84.69 | 86.89 | +3.49% | |
| 84.14 | 86.20 | 82.53 | 83.96 | +0.55% | |
| 81.37 | 83.86 | 80.76 | 83.50 | +2.18% | |
| 80.66 | 81.97 | 80.20 | 81.72 | +0.38% | |
| 79.28 | 81.64 | 78.97 | 81.41 | +2.71% | |
| 79.88 | 79.88 | 78.77 | 79.26 | -0.34% | |
| 79.80 | 80.71 | 79.31 | 79.53 | -0.91% | |
| 80.73 | 81.30 | 79.84 | 80.26 | -0.71% | |
| 81.20 | 81.97 | 80.07 | 80.83 | -1.00% | |
| 81.14 | 82.53 | 81.12 | 81.65 | +0.62% | |
| 79.85 | 81.30 | 79.23 | 81.15 | +2.40% | |
| 78.70 | 79.39 | 78.00 | 79.25 | -0.76% | |
| 81.52 | 81.98 | 79.71 | 79.86 | -2.48% | |
| 80.89 | 82.36 | 80.88 | 81.89 | +1.29% | |
| 80.27 | 81.32 | 79.91 | 80.85 | +0.84% | |
| 80.42 | 80.79 | 79.41 | 80.18 | -0.48% | |
| 79.82 | 81.52 | 79.44 | 80.57 | +0.66% | |
| 79.93 | 80.32 | 78.17 | 80.04 | +0.06% | |
| 78.00 | 80.69 | 77.31 | 79.99 | +1.92% | |
| 78.65 | 79.10 | 77.32 | 78.48 | -0.17% | |
| 77.93 | 78.93 | 77.40 | 78.61 | +0.49% | |
| 76.08 | 78.90 | 76.08 | 78.23 | +2.56% | |
| 76.70 | 77.71 | 75.40 | 76.28 | -0.34% | |
| 77.95 | 78.12 | 76.48 | 76.54 | -2.05% | |
| 78.39 | 79.19 | 77.56 | 78.14 | -0.53% | |
| 78.54 | 78.64 | 78.01 | 78.56 | +0.20% | |
| 78.00 | 78.64 | 77.35 | 78.40 | +0.36% | |
| 78.55 | 78.55 | 77.91 | 78.12 | +0.05% | |
| 77.76 | 78.35 | 77.36 | 78.08 | +0.26% | |
| 77.46 | 79.19 | 77.46 | 77.88 | +0.32% | |
| 78.85 | 79.32 | 77.41 | 77.63 | -2.12% | |
| 79.16 | 79.81 | 78.76 | 79.31 | +0.44% | |
| 77.83 | 79.62 | 76.55 | 78.96 | +1.24% | |
| 78.24 | 78.45 | 77.51 | 77.99 | -0.50% | |
| 78.34 | 78.54 | 77.40 | 78.38 | +0.24% | |
| 78.99 | 79.29 | 77.95 | 78.19 | -0.55% | |
| 78.90 | 79.20 | 78.07 | 78.62 | +0.18% | |
| 76.10 | 79.39 | 75.87 | 78.48 | +3.30% | |
| 74.92 | 76.52 | 74.92 | 75.97 | +1.36% | |
| 75.13 | 76.78 | 74.53 | 74.95 | -0.12% | |
| 73.70 | 75.19 | 73.62 | 75.04 | +1.39% | |
| 74.77 | 74.93 | 73.72 | 74.01 | -1.12% | |
| 74.37 | 75.75 | 73.16 | 74.85 | +0.65% | |
| 74.21 | 74.53 | 72.96 | 74.37 | +0.49% | |
| 74.21 | 75.57 | 73.94 | 74.01 | -1.00% | |
| 74.43 | 74.94 | 74.09 | 74.76 | +0.28% | |
| 74.01 | 75.38 | 73.47 | 74.55 | +0.03% | |
| 71.60 | 74.60 | 71.40 | 74.53 | +4.90% | |
| 71.86 | 72.15 | 70.19 | 71.05 | -1.50% | |
| 70.77 | 73.22 | 70.10 | 72.13 | +2.14% | |
| 71.62 | 71.69 | 70.18 | 70.62 | -0.35% | |
| 71.05 | 71.99 | 70.48 | 70.87 | -0.39% | |
| 71.76 | 71.88 | 70.34 | 71.15 | -1.50% | |
| 73.75 | 74.59 | 72.05 | 72.23 | -2.51% | |
| 74.50 | 75.47 | 73.50 | 74.09 | -0.91% | |
| 74.50 | 76.15 | 74.23 | 74.77 | -0.12% | |
| 75.43 | 76.31 | 74.83 | 74.86 | -1.06% | |
| 75.37 | 75.96 | 75.00 | 75.66 | +0.79% | |
| 77.05 | 77.05 | 74.68 | 75.07 | -1.82% | |
| 73.39 | 76.61 | 73.39 | 76.46 | +4.04% | |
| 73.75 | 74.88 | 73.00 | 73.49 | -0.70% | |
| 71.87 | 76.00 | 71.06 | 74.01 | +2.42% | |
| 73.28 | 73.58 | 72.07 | 72.26 | -1.89% | |
| 73.56 | 74.05 | 71.82 | 73.65 | +0.10% | |
| 72.39 | 73.85 | 72.03 | 73.58 | +0.66% | |
| 73.40 | 73.85 | 72.33 | 73.10 | -0.52% | |
| 74.78 | 75.33 | 72.74 | 73.48 | -2.37% | |
| 75.13 | 75.73 | 74.38 | 75.26 | +0.05% | |
| 76.51 | 76.51 | 75.08 | 75.22 | -1.43% | |
| 76.06 | 76.47 | 75.28 | 76.31 | +0.87% | |
| 76.11 | 76.44 | 75.08 | 75.65 | -0.32% | |
| 74.67 | 76.06 | 74.67 | 75.89 | +1.40% | |
| 74.15 | 75.64 | 73.39 | 74.84 | +0.60% | |
| 74.39 | 75.52 | 73.82 | 74.39 | +0.42% | |
| 73.98 | 74.81 | 73.60 | 74.08 | -0.15% | |
| 74.90 | 75.13 | 73.92 | 74.19 | -0.99% | |
| 74.88 | 75.58 | 74.30 | 74.93 | +0.67% | |
| 73.67 | 74.88 | 73.58 | 74.43 | -0.12% | |
| 74.62 | 75.42 | 74.19 | 74.52 | +0.81% | |
| 76.29 | 78.49 | 73.72 | 73.92 | -3.11% | |
| 78.31 | 78.45 | 75.90 | 76.29 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the IOSP chart for longer ranges.