If you invested $1000 in Innospec Inc. (IOSP) 10 years ago, it would be worth $1,798.06 as of October 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,196.17, while $1000 invested 1 year ago would be worth $1,321.09. This corresponds to total returns of 79.81%, 19.62%, 32.11%, respectively, with annualized returns of 6.04%, 3.65%, 32.11%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| October 21, 2026 | 99.34 | 99.64 | 99.64 | 99.77 | 98.76 | 364,831 |
| October 20, 2026 | 98.32 | 99.16 | 99.16 | 99.88 | 97.4 | 414,538 |
| October 19, 2026 | 96.83 | 97.99 | 97.99 | 98.49 | 96.32 | 242,657 |
| October 16, 2026 | 96.75 | 96.81 | 96.81 | 97.4 | 96.06 | 173,644 |
| October 15, 2026 | 97.56 | 96.6 | 96.6 | 98.67 | 96.12 | 239,147 |
| October 14, 2026 | 96.5 | 97.1 | 97.1 | 97.66 | 96.5 | 150,835 |
| October 13, 2026 | 96.3 | 97.43 | 97.43 | 97.89 | 95.9 | 128,419 |
| October 12, 2026 | 95.7 | 95.66 | 95.66 | 96.5 | 95 | 167,066 |
| October 09, 2026 | 97.48 | 95.65 | 95.65 | 97.89 | 95.53 | 182,352 |
| October 08, 2026 | 97.05 | 97.69 | 97.69 | 98.49 | 96.06 | 168,200 |
| October 07, 2026 | 97.39 | 97.42 | 97.42 | 98.64 | 96.85 | 304,610 |
| October 06, 2026 | 98.27 | 98.55 | 98.55 | 99.22 | 97.32 | 232,433 |
| October 05, 2026 | 97.62 | 97.65 | 97.65 | 98.6 | 96.72 | 162,517 |
| October 02, 2026 | 96.43 | 97.41 | 97.41 | 98.67 | 95.44 | 196,536 |
| October 01, 2026 | 94.83 | 95.17 | 95.17 | 95.69 | 93.64 | 267,607 |
| September 30, 2026 | 97.16 | 95.32 | 95.32 | 97.24 | 95.09 | 224,921 |
| September 29, 2026 | 97.56 | 96.72 | 96.72 | 98.09 | 96.11 | 114,204 |
| September 28, 2026 | 98.72 | 97.88 | 97.88 | 100.48 | 97.58 | 284,658 |
| September 25, 2026 | 97.1 | 98.72 | 98.72 | 98.77 | 96.87 | 201,985 |
| September 24, 2026 | 96.61 | 96.87 | 96.87 | 97.5 | 95.76 | 211,698 |
| September 23, 2026 | 96.08 | 96.6 | 96.6 | 98 | 95.77 | 262,136 |
| September 22, 2026 | 93.52 | 96.08 | 96.08 | 96.4 | 92.71 | 349,834 |
| September 21, 2026 | 92.85 | 92.56 | 92.56 | 93.34 | 92.3 | 150,510 |
| September 18, 2026 | 92.79 | 93.15 | 93.15 | 94.05 | 91.55 | 535,746 |
| September 17, 2026 | 93.88 | 93.18 | 93.18 | 93.88 | 92.32 | 183,434 |
| September 16, 2026 | 92.27 | 92.93 | 92.93 | 94.08 | 91.11 | 185,448 |
| September 15, 2026 | 91.96 | 91.82 | 91.82 | 92.23 | 91 | 261,348 |
| September 11, 2026 | 93.83 | 93.23 | 93.23 | 93.83 | 92.6 | 80,068 |
| September 10, 2026 | 93.9 | 93.08 | 93.08 | 94.35 | 92 | 102,037 |
| September 09, 2026 | 92.74 | 93.57 | 93.57 | 94.05 | 92.4 | 127,186 |
| September 08, 2026 | 93.28 | 93.37 | 93.37 | 96.14 | 92.49 | 135,641 |
| September 04, 2026 | 92.43 | 93.95 | 93.95 | 94.28 | 92.4 | 103,256 |
| September 03, 2026 | 94.36 | 93.12 | 93.12 | 94.55 | 92.44 | 190,509 |
| September 02, 2026 | 92.6 | 93.76 | 93.76 | 95.38 | 92.51 | 156,433 |
| September 01, 2026 | 93.12 | 92.61 | 92.61 | 93.87 | 92.3 | 122,268 |
| August 31, 2026 | 95.49 | 93.86 | 93.86 | 95.95 | 93.62 | 160,602 |
| August 28, 2026 | 95.73 | 95.38 | 95.38 | 96.68 | 94.92 | 163,826 |
| August 27, 2026 | 94.7 | 95.34 | 95.34 | 96.41 | 93.91 | 193,856 |
| August 26, 2026 | 94.51 | 95.66 | 95.66 | 96.14 | 94.16 | 224,635 |
| August 25, 2026 | 94.73 | 94.36 | 94.36 | 94.78 | 93.14 | 180,468 |
| August 24, 2026 | 93.7 | 94.73 | 94.73 | 94.98 | 92.81 | 189,624 |
| August 21, 2026 | 93.71 | 93.63 | 93.63 | 93.88 | 92.76 | 120,050 |
| August 20, 2026 | 92.83 | 92.92 | 92.92 | 94.58 | 91.8 | 101,335 |
| August 19, 2026 | 94.47 | 93.76 | 93.76 | 95.01 | 93.06 | 108,207 |
| August 18, 2026 | 93.86 | 93.56 | 93.56 | 94.65 | 93.05 | 208,979 |
| August 17, 2026 | 93.08 | 93.83 | 93.83 | 94.18 | 93.07 | 181,953 |
| August 14, 2026 | 93.82 | 93.85 | 93.85 | 94.41 | 93.44 | 104,725 |
| August 13, 2026 | 93.54 | 93.92 | 93.92 | 94.67 | 93.28 | 126,188 |
| August 12, 2026 | 93.93 | 93.12 | 93.12 | 94.45 | 92.69 | 210,920 |
| August 11, 2026 | 93.22 | 93.97 | 93.97 | 94.56 | 92.55 | 205,594 |
| August 10, 2026 | 91.88 | 92.89 | 92.89 | 93.61 | 91.84 | 155,868 |
| August 07, 2026 | 91.67 | 92.44 | 92.44 | 92.61 | 89.65 | 162,906 |
| August 06, 2026 | 92.5 | 91.53 | 91.53 | 94.17 | 90.93 | 285,543 |
| August 05, 2026 | 90.28 | 91.96 | 91.96 | 93.34 | 88.05 | 392,351 |
| August 04, 2026 | 85.53 | 86.7 | 86.7 | 87.03 | 85.04 | 174,790 |
| August 03, 2026 | 86.22 | 85.48 | 85.48 | 87.85 | 85.42 | 154,716 |
| July 31, 2026 | 85.29 | 85.98 | 85.98 | 86.26 | 83.78 | 205,533 |
| July 30, 2026 | 85.28 | 86.07 | 86.07 | 86.5 | 84.66 | 140,705 |
| July 29, 2026 | 85.64 | 84.95 | 84.95 | 86.36 | 84.59 | 140,487 |
| July 28, 2026 | 86.38 | 85.9 | 85.9 | 87.69 | 85.66 | 133,860 |