Innospec Inc. (IOSP) Stock Price History
Historical prices from 1998 to 2026
- 1M
- +4.7%
- 3M
- +22.5%
- YTD
- +8.5%
- 1Y
- -0.1%
- 3Y
- -5.8%
- 5Y
- -2.0%
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
- +0.4%
IOSP Stock Price Trajectory (1998–2026)
As of June 21, 2026, Innospec Inc. (IOSP) trades at $82.73, representing a -0.1% return over the past year. The stock has delivered a -1.5% total return over five years (-2.0% 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 -38.1%, currently trading 6% above its 200-day moving average, indicating continued institutional support.
When compared to Basic Materials sector peers HWKN (+16.8% 1Y), BCPC (+3.8% 1Y), and ITIC (+27.9% 1Y), IOSP has underperformed the peer group average. Compare IOSP vs HWKN →
IOSP Historical Price Data · from 1998
Rows 1–50 of 7,070| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-06-18 | 83.70 | 83.70 | 82.28 | 82.73 | 304K | -0.46% |
| 2026-06-17 | 83.33 | 84.83 | 82.86 | 83.11 | 171K | -0.75% |
| 2026-06-16 | 85.78 | 86.23 | 83.33 | 83.74 | 169K | -1.61% |
| 2026-06-15 | 86.70 | 86.70 | 84.92 | 85.11 | 230K | -1.71% |
| 2026-06-12 | 86.22 | 87.34 | 86.01 | 86.59 | 204K | +0.85% |
| 2026-06-11 | 83.72 | 85.94 | 83.08 | 85.86 | 170K | +3.01% |
| 2026-06-10 | 83.13 | 83.98 | 82.92 | 83.35 | 218K | +0.63% |
| 2026-06-09 | 82.04 | 83.32 | 81.89 | 82.83 | 193K | +1.78% |
| 2026-06-08 | 80.85 | 81.89 | 80.77 | 81.38 | 102K | +0.87% |
| 2026-06-05 | 81.40 | 81.42 | 80.44 | 80.68 | 115K | +0.04% |
| 2026-06-04 | 81.08 | 81.50 | 80.13 | 80.65 | 160K | +0.06% |
| 2026-06-03 | 81.47 | 82.63 | 80.52 | 80.60 | 134K | -1.29% |
| 2026-06-02 | 81.89 | 82.89 | 80.34 | 81.65 | 96K | -0.34% |
| 2026-06-01 | 81.57 | 82.19 | 80.99 | 81.93 | 147K | -1.22% |
| 2026-05-29 | 81.68 | 83.32 | 81.31 | 82.94 | 224K | +0.79% |
| 2026-05-28 | 81.61 | 82.35 | 81.20 | 82.29 | 109K | 0.00% |
| 2026-05-27 | 81.96 | 82.61 | 81.70 | 82.29 | 146K | +0.40% |
| 2026-05-26 | 79.71 | 82.08 | 79.71 | 81.96 | 147K | +2.99% |
| 2026-05-22 | 78.58 | 79.75 | 78.47 | 79.58 | 189K | +1.08% |
| 2026-05-21 | 77.90 | 79.00 | 76.44 | 78.73 | 183K | +0.09% |
| 2026-05-20 | 76.87 | 78.78 | 76.26 | 78.66 | 218K | +2.33% |
| 2026-05-19 | 77.51 | 77.71 | 76.65 | 76.87 | 135K | -2.76% |
| 2026-05-18 | 78.47 | 79.68 | 78.15 | 79.05 | 165K | +1.15% |
| 2026-05-15 | 79.50 | 79.50 | 77.69 | 78.15 | 260K | -2.31% |
| 2026-05-14 | 79.68 | 80.68 | 79.68 | 80.00 | 215K | +0.39% |
| 2026-05-13 | 80.47 | 80.73 | 78.79 | 79.69 | 338K | -0.93% |
| 2026-05-12 | 80.22 | 81.36 | 79.21 | 80.44 | 213K | -0.47% |
| 2026-05-11 | 81.19 | 82.61 | 80.15 | 80.82 | 231K | +0.34% |
| 2026-05-08 | 78.82 | 81.00 | 78.00 | 80.55 | 321K | +5.10% |
| 2026-05-07 | 78.88 | 79.03 | 76.59 | 76.64 | 196K | -1.33% |
| 2026-05-06 | 79.00 | 79.36 | 77.47 | 77.67 | 161K | -0.67% |
| 2026-05-05 | 77.26 | 79.19 | 77.26 | 78.20 | 92K | +2.24% |
| 2026-05-04 | 76.49 | 77.20 | 75.13 | 76.48 | 152K | -0.46% |
| 2026-05-01 | 76.75 | 77.36 | 75.69 | 76.83 | 231K | +0.75% |
| 2026-04-30 | 75.09 | 76.62 | 74.64 | 76.26 | 141K | +0.86% |
| 2026-04-29 | 76.16 | 76.53 | 75.45 | 75.61 | 146K | -1.34% |
| 2026-04-28 | 77.81 | 78.02 | 76.45 | 76.64 | 104K | -1.34% |
| 2026-04-27 | 76.82 | 78.02 | 76.39 | 77.68 | 188K | +0.69% |
| 2026-04-24 | 76.46 | 77.22 | 75.61 | 77.15 | 112K | +0.64% |
| 2026-04-23 | 75.46 | 76.80 | 75.00 | 76.66 | 144K | +2.25% |
| 2026-04-22 | 75.75 | 76.09 | 74.86 | 74.97 | 150K | -0.66% |
| 2026-04-21 | 75.09 | 75.78 | 74.85 | 75.47 | 113K | -0.01% |
| 2026-04-20 | 75.95 | 76.43 | 75.11 | 75.48 | 116K | -0.93% |
| 2026-04-17 | 75.47 | 77.90 | 75.47 | 76.19 | 169K | +1.46% |
| 2026-04-16 | 74.80 | 76.22 | 74.67 | 75.09 | 150K | +0.58% |
| 2026-04-15 | 74.83 | 75.78 | 71.19 | 74.66 | 214K | -0.74% |
| 2026-04-14 | 76.55 | 76.70 | 75.10 | 75.22 | 180K | -1.76% |
| 2026-04-13 | 75.38 | 76.57 | 74.29 | 76.57 | 198K | +1.20% |
| 2026-04-10 | 75.68 | 76.17 | 75.02 | 75.66 | 125K | -0.22% |
| 2026-04-09 | 75.17 | 76.86 | 74.53 | 75.83 | 251K | +0.09% |
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
10-year return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
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 declined -0.1% over the past year, below its 5-year annualized CAGR of -2.0%. The stock trades above its 200-day moving average, reflecting the downtrend.
What is IOSP's all-time high price?
Innospec Inc. reached $133.71 on 2024-05-10. The 52-week high is $92.14. Current 1-year return of -0.1% places the stock further from 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.