Innospec Inc. (IOSP) Stock Price History
Historical prices from 2011 to 2026
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IOSP Historical Performance
Short-Term Returns
IOSP Stock Price Trajectory (2011–2026)
As of May 7, 2026, Innospec Inc. (IOSP) trades at $77.67, representing a -16.1% return over the past year. The stock has delivered a -17.5% total return over five years (-5.4% 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 -41.9%, currently trading -0% above its 200-day moving average, indicating continued institutional support.
When compared to Basic Materials sector peers HWKN (+39.9% 1Y), BCPC (-1.4% 1Y), and ITIC (-2.0% 1Y), IOSP has underperformed the peer group average. Compare IOSP vs HWKN →
IOSP Historical Price Data (2011–2026)
Showing 30 of 3,650 records| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 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% |
| 2026-04-08 | 74.68 | 75.93 | 74.03 | 75.76 | 278K | +3.95% |
| 2026-04-07 | 72.03 | 73.00 | 71.50 | 72.88 | 202K | +0.89% |
| 2026-04-06 | 73.80 | 73.80 | 71.91 | 72.24 | 161K | -2.10% |
| 2026-04-02 | 72.81 | 74.19 | 72.66 | 73.79 | 261K | +0.26% |
| 2026-04-01 | 73.22 | 74.29 | 73.06 | 73.60 | 197K | +0.79% |
| 2026-03-31 | 73.29 | 74.37 | 72.07 | 73.02 | 246K | -0.23% |
| 2026-03-30 | 72.74 | 73.31 | 72.25 | 73.19 | 242K | +1.37% |
| 2026-03-27 | 72.00 | 72.85 | 70.93 | 72.20 | 246K | -0.23% |
| 2026-03-26 | 70.30 | 72.48 | 70.30 | 72.37 | 216K | +2.29% |
| 2026-03-25 | 68.60 | 70.82 | 67.78 | 70.75 | 444K | +4.20% |
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Start ComparisonIOSP — Frequently Asked Questions
Quick answers to the most common questions about buying IOSP stock.
How has IOSP stock performed recently?
IOSP declined -16.1% over the past year, below its 5-year annualized CAGR of -5.4%. The stock trades below 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 $95.55. Current 1-year return of -16.1% 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 2011-2026, downloadable in CSV format.