Innospec Inc. (IOSP) Stock Chart
IOSP price chart
Daily prices adjusted for splits and dividends. 1D and 5D show delayed intraday prices. Markers: E earnings, D dividend, S split.
Technical snapshot
Key levels & statistics
IOSP performance vs the market
Total return, dividends reinvestedIOSP monthly returns
IOSP historical prices
IOSP dividends & splits
About the IOSP chart
Innospec (IOSP) closed at $96.81 on October 16, 2026, up 28.0% so far this year. The stock is trading 16.8% above its 200-day moving average of $82.92, which technical analysts usually read as a long-term uptrend. Over the past year IOSP returned +33.6% including dividends, ahead of the S&P 500 (+16.8%).
This page charts the full trading history of Innospec Inc. stock. Daily prices come from EODHD and are adjusted for stock splits and dividends, so returns over long periods are comparable. For the latest quote, company profile, earnings and news, see the IOSP stock overview.
IOSP chart FAQ
What is Innospec's all-time high stock price?
The highest closing price for IOSP was $131.58 on May 15, 2024 (adjusted for stock splits). As of the October 16, 2026 close it traded 26.4% below that level.
What is the 52-week range of IOSP stock?
Over the 52 weeks to October 16, 2026, IOSP traded between an intraday low of $65.51 on March 20, 2026 and an intraday high of $100.48 on September 28, 2026.
Is IOSP above its 200-day moving average?
Yes. On October 16, 2026 IOSP closed at $96.81, 16.8% above its 200-day simple moving average of $82.92. The 50-day average was $94.82.
How has IOSP stock performed compared with the S&P 500?
Including reinvested dividends, IOSP returned +33.6% over the past year, compared with +16.8% for the S&P 500 (SPY). Over five years the figures were +22.1% and +83.0%.
Does Innospec pay a dividend?
Yes. Innospec paid $1.79 per share in dividends over the past 12 months (2 payments), a yield of about 1.85% at the latest close. The most recent dividend of $0.92 per share had an ex-dividend date of May 19, 2026.
Has IOSP stock ever split?
IOSP has split its stock 1 time: 2:1 (July 23, 2007). Prices on this chart are adjusted for all splits.
How do I read the IOSP chart?
Pick a time range above the chart and choose candlesticks, a line or an area chart. Moving averages, Bollinger Bands, volume, RSI and MACD can be switched on with the indicator buttons, and "Compare" plots IOSP against the S&P 500, its sector or a competitor as a percentage change. Chart prices are adjusted for splits and dividends.