Innospec - 15 Year Stock Price History | IOSP

Historical daily share price chart and data for Innospec since 2011 adjusted for splits and dividends. The latest closing stock price for Innospec as of September 15, 2026 is 91.82.
  • The all-time high Innospec stock closing price was 126.25 on July 23, 2024.
  • The Innospec 52-week high stock price is 96.68, which is 5.3% above the current share price.
  • The Innospec 52-week low stock price is 65.51, which is 28.7% below the current share price.
  • The average Innospec stock price for the last 52 weeks is 80.00.
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Innospec Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2026 81.2203 75.3922 95.6600 65.1232 91.8200 21.38%
2025 85.5033 104.1150 112.7910 69.7981 75.6492 -28.94%
2024 114.4763 116.7010 126.2540 100.6950 106.4560 -9.57%
2023 99.1457 97.5634 119.5380 87.6411 117.7230 21.46%
2022 90.6961 87.1612 106.1570 79.0691 96.9227 15.25%
2021 86.6657 82.3831 97.4597 75.5900 84.0985 0.77%
2020 72.0265 93.9584 97.1496 55.6371 83.4594 -11.00%
2019 77.5860 55.3584 94.2032 53.9603 93.7771 69.43%
2018 64.7911 63.0589 73.6727 51.7825 55.3494 -11.48%
2017 56.6270 60.8223 64.6088 47.7718 62.5275 4.30%
2016 46.4249 45.2183 63.6665 36.6880 59.9472 27.72%
2015 40.5581 36.2944 50.4730 33.6989 46.9382 28.75%
2014 35.7076 38.5544 38.9070 30.1854 36.4567 -6.42%
2013 35.7860 29.4052 41.0578 29.4052 38.9590 35.49%
2012 24.1422 22.1157 28.7549 19.9956 28.7549 30.95%
Sector Industry Market Cap Revenue
Basic Materials Chemicals - Diversified $2.265B $1.778B
Innospec Inc. is an international specialty chemicals company. Innospec manufactures and supplies a wide range of specialty chemicals to markets in the Americas, Europe, the Middle East, Africa and Asia-Pacific. The Fuel Specialties business specializes in manufacturing and supplying fuel additives that improve fuel efficiency, boost engine performance and reduce harmful emissions. Oilfield Services provides specialty chemicals to all elements of the oil & gas exploration and production industry. The Performance Chemicals business creates innovative technology-based solutions for the customers in the Personal Care, Home Care, Agrochemical, Mining and Industrial markets. Octane Additives produces octane improvers to enhance gasoline.
Stock Name Country Market Cap PE Ratio
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Brenntag AG (BNTGY) Germany $10.158B 23.85
Eastman Chemical (EMN) United States $7.663B 13.53
SUMITOMO CHEMCL (SOMMY) Japan $5.973B 8.51
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Northern Technologies (NTIC) United States $0.076B 0.00
Tantech Holdings (TANH) China $0.014B 0.00
Gulf Resources (GURE) China $0.007B 0.00
SINOPEC Shangai Petrochemical (SHI) China $0.000B 0.00