Innospec Inc. (IOSP) Stock Price History
Historical prices from 1998 to 2026
- 1M
- -20.6%
- 3M
- -14.6%
- YTD
- +2.5%
- 1Y
- +6.4%
- 3Y
- -8.1%
- 5Y
- -3.6%
Loading 10-year price history...
IOSP Historical Performance
IOSP Annual Returns
Year-by-year price performance · 2002–2026
- 2002 annual price return
- -10.2%
- 2003 annual price return
- +24.7%
- 2004 annual price return
- +0.3%
- 2005 annual price return
- -21.0%
- 2006 annual price return
- +177.8%
- 2007 annual price return
- -23.9%
- 2008 annual price return
- -65.6%
- 2009 annual price return
- +72.2%
- 2010 annual price return
- +98.6%
- 2011 annual price return
- +35.7%
- 2012 annual price return
- +22.0%
- 2013 annual price return
- +31.0%
- 2014 annual price return
- -6.6%
- 2015 annual price return
- +27.8%
- 2016 annual price return
- +30.9%
- 2017 annual price return
- +1.6%
- 2018 annual price return
- -13.3%
- 2019 annual price return
- +67.5%
- 2020 annual price return
- -12.5%
- 2021 annual price return
- +0.9%
- 2022 annual price return
- +9.9%
- 2023 annual price return
- +19.0%
- 2024 annual price return
- -9.9%
- 2025 annual price return
- -28.9%
- 2026 annual price return
- +25.4%
IOSP Stock Price Trajectory (1998–2026)
As of November 7, 2026, Innospec Inc. (IOSP) trades at $78.21, representing a +6.4% return over the past year. The stock has delivered a -9.0% total return over five years (-3.6% CAGR), reflecting challenging market conditions.
The stock reached its all-time high of $133.71 on May 10, 2024. From this peak, IOSP has corrected -41.5%, currently trading 7% below its 200-day moving average, suggesting potential weakness.
When compared to Basic Materials sector peers HWKN (+19.1% 1Y), BCPC (+14.6% 1Y), and ITIC (-6.6% 1Y), IOSP has underperformed the peer group average. Compare IOSP vs HWKN →
IOSP Historical Price Data · from 1998
Rows 1–50 of 7,167| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-11-06 | 79.52 | 79.82 | 77.52 | 78.21 | 238K | -1.16% |
| 2026-11-05 | 80.65 | 82.97 | 77.84 | 79.13 | 453K | -1.88% |
| 2026-11-04 | 91.65 | 93.99 | 79.89 | 80.65 | 482K | -18.72% |
| 2026-11-03 | 99.98 | 100.72 | 98.92 | 99.23 | 280K | -0.32% |
| 2026-11-02 | 100.95 | 101.48 | 99.21 | 99.55 | 208K | -0.34% |
| 2026-10-30 | 101.54 | 102.00 | 99.46 | 99.89 | 217K | -1.50% |
| 2026-10-29 | 101.27 | 101.80 | 100.07 | 101.41 | 205K | +0.71% |
| 2026-10-28 | 99.83 | 100.76 | 99.00 | 100.70 | 147K | +0.78% |
| 2026-10-27 | 99.72 | 100.11 | 99.14 | 99.92 | 134K | +0.75% |
| 2026-10-26 | 99.12 | 100.62 | 98.79 | 99.18 | 128K | +0.55% |
| 2026-10-23 | 97.74 | 98.91 | 97.12 | 98.64 | 113K | -0.03% |
| 2026-10-22 | 99.10 | 100.07 | 98.45 | 98.67 | 502K | -0.97% |
| 2026-10-21 | 99.34 | 99.77 | 98.76 | 99.64 | 402K | +0.48% |
| 2026-10-20 | 98.32 | 99.88 | 97.40 | 99.16 | 415K | +1.19% |
| 2026-10-19 | 96.83 | 98.49 | 96.32 | 97.99 | 244K | +1.22% |
| 2026-10-16 | 96.75 | 97.40 | 96.06 | 96.81 | 178K | +0.22% |
| 2026-10-15 | 97.56 | 98.67 | 96.12 | 96.60 | 241K | -0.51% |
| 2026-10-14 | 96.50 | 97.66 | 96.50 | 97.10 | 151K | -0.34% |
| 2026-10-13 | 96.30 | 97.89 | 95.90 | 97.43 | 132K | +1.85% |
| 2026-10-12 | 95.70 | 96.50 | 95.00 | 95.66 | 172K | +0.01% |
| 2026-10-09 | 97.48 | 97.89 | 95.53 | 95.65 | 182K | -2.09% |
| 2026-10-08 | 97.05 | 98.49 | 96.06 | 97.69 | 181K | +0.28% |
| 2026-10-07 | 97.39 | 98.64 | 96.85 | 97.42 | 305K | -1.15% |
| 2026-10-06 | 98.27 | 99.22 | 97.32 | 98.55 | 234K | +0.92% |
| 2026-10-05 | 97.62 | 98.60 | 96.72 | 97.65 | 193K | +0.25% |
| 2026-10-02 | 96.43 | 98.67 | 95.44 | 97.41 | 197K | +2.35% |
| 2026-10-01 | 94.83 | 95.69 | 93.64 | 95.17 | 331K | -0.16% |
| 2026-09-30 | 97.16 | 97.24 | 95.09 | 95.32 | 227K | -1.45% |
| 2026-09-29 | 97.56 | 98.09 | 96.11 | 96.72 | 185K | -1.19% |
| 2026-09-28 | 98.72 | 100.48 | 97.58 | 97.88 | 300K | -0.85% |
| 2026-09-25 | 97.10 | 98.77 | 96.87 | 98.72 | 258K | +1.91% |
| 2026-09-24 | 96.61 | 97.50 | 95.76 | 96.87 | 212K | +0.28% |
| 2026-09-23 | 96.08 | 98.00 | 95.77 | 96.60 | 262K | +0.54% |
| 2026-09-22 | 93.52 | 96.40 | 92.59 | 96.08 | 350K | +3.80% |
| 2026-09-21 | 92.85 | 93.34 | 92.30 | 92.56 | 151K | -0.63% |
| 2026-09-18 | 92.79 | 94.05 | 91.55 | 93.15 | 536K | -0.03% |
| 2026-09-17 | 93.88 | 93.88 | 92.32 | 93.18 | 267K | +0.27% |
| 2026-09-16 | 92.27 | 94.08 | 91.11 | 92.93 | 186K | +1.21% |
| 2026-09-15 | 91.96 | 92.23 | 91.00 | 91.82 | 300K | -0.15% |
| 2026-09-14 | 93.33 | 93.33 | 91.80 | 91.96 | 153K | -1.36% |
| 2026-09-11 | 93.83 | 93.83 | 92.60 | 93.23 | 125K | +0.16% |
| 2026-09-10 | 93.90 | 94.35 | 92.00 | 93.08 | 102K | -0.52% |
| 2026-09-09 | 92.74 | 94.05 | 92.40 | 93.57 | 128K | +0.21% |
| 2026-09-08 | 93.28 | 96.14 | 92.49 | 93.37 | 136K | -0.62% |
| 2026-09-04 | 92.43 | 94.28 | 92.40 | 93.95 | 104K | +0.89% |
| 2026-09-03 | 94.36 | 94.55 | 92.44 | 93.12 | 191K | -0.68% |
| 2026-09-02 | 92.60 | 95.38 | 92.51 | 93.76 | 156K | +1.24% |
| 2026-09-01 | 93.12 | 93.87 | 92.30 | 92.61 | 122K | -1.33% |
| 2026-08-31 | 95.49 | 95.95 | 93.62 | 93.86 | 161K | -1.59% |
| 2026-08-28 | 95.73 | 96.68 | 94.92 | 95.38 | 164K | +0.04% |
IOSP Chart Terminal
Live VCP patterns, Cup & Handle overlays, support/resistance, and AI trade plans.
Live Breakouts Feed
High-probability breakout stocks crossing their pivot across 5 pattern engines.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
10-year return with dividends reinvested.
Peer Comparison
Compare growth, multiples, and margins vs sector.
IOSP — Frequently Asked Questions
Quick answers to the most common questions about buying IOSP stock.
How has IOSP stock performed recently?
IOSP returned +6.4% over the past year, beating its 5-year annualized CAGR of -3.6%. The stock trades below its 200-day moving average, confirming the uptrend.
What is IOSP's all-time high price?
Innospec Inc. reached $133.71 on 2024-05-10. The 52-week high is $102.00. Current 1-year return of +6.4% places the stock closer to historical peaks.
Where can I download IOSP historical price data?
This page provides IOSP daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 1998-2026, downloadable in CSV format.