Innospec (IOSP) Stock Chart & Stock Price History $90.02 +0.54 (+0.60%) Closing price 04:00 PM EasternExtended Trading$90.10 +0.08 (+0.08%) As of 04:20 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Innospec Stock Price Performance 5 Day Performance+0.26%1 Month Performance-4.78%3 Month Performance-20.58%6 Month Performance-16.95%Year-To-Date Performance-18.21%1 Year Performance-25.26% Receive IOSP Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Innospec and its competitors with MarketBeat's FREE daily newsletter. Email Address IOSP Stock Chart for Thursday, May, 1, 2025 IOSP Chart by TradingView Innospec Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization04/30/2025$89.90$89.48-0.47%$89.91$86.14160,059 shs$2.25 billion04/29/2025$89.80$89.90+0.11%$90.49$89.30276,975 shs$2.26 billion04/28/2025$89.79$89.80+0.01%$91.10$88.88135,395 shs$2.26 billion04/25/2025$90.33$89.79-0.60%$90.20$88.27131,547 shs$2.26 billion04/24/2025$88.39$90.33+2.19%$90.47$86.91178,019 shs$2.27 billion04/23/2025$88.44$88.39-0.06%$93.83$88.21248,970 shs$2.22 billion04/22/2025$86.70$88.44+2.01%$88.87$86.56128,092 shs$2.22 billion04/21/2025$85.92$86.70+0.91%$86.95$85.48140,353 shs$2.18 billion04/18/2025$85.92$85.92$86.44$85.07145,646 shs$2.16 billion04/17/2025$85.48$85.92+0.51%$86.44$85.07145,646 shs$2.16 billion Get the Latest News and Ratings for IOSP and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Innospec and its competitors with MarketBeat's FREE daily newsletter. 04/16/2025$87.23$85.48-2.01%$88.06$84.49138,123 shs$2.15 billion04/15/2025$87.47$87.23-0.27%$90.20$86.73254,566 shs$2.19 billion04/14/2025$87.47$87.47$88.74$86.15101,781 shs$2.20 billion04/11/2025$86.52$87.47+1.10%$87.99$84.64145,992 shs$2.20 billion04/10/2025$89.88$86.52-3.74%$87.65$84.44154,709 shs$2.17 billion04/09/2025$83.39$89.88+7.78%$89.96$81.33318,765 shs$2.26 billion04/09/2025$83.39$89.88+7.78%$89.96$81.33318,765 shs$2.26 billion04/08/2025$85.19$83.39-2.11%$87.88$82.43276,910 shs$2.09 billion04/08/2025$85.19$83.39-2.11%$87.88$82.43276,910 shs$2.09 billion04/07/2025$85.83$85.19-0.75%$87.98$80.32323,875 shs$2.14 billion04/04/2025$88.45$85.83-2.96%$89.44$82.98309,691 shs$2.16 billion04/03/2025$95.65$88.45-7.53%$92.20$88.25195,542 shs$2.22 billion04/02/2025$94.54$95.65+1.17%$95.85$93.55148,727 shs$2.40 billion04/01/2025$94.75$94.54-0.22%$96.38$93.22238,005 shs$2.37 billion03/31/2025$95.20$94.75-0.47%$95.46$93.99196,703 shs$2.36 billion Related Companies ALB Stock Price Chart NEU Stock Price Chart BCPC Stock Price Chart CE Stock Price Chart SXT Stock Price Chart FUL Stock Price Chart ASH Stock Price Chart MTX Stock Price Chart KWR Stock Price Chart SCL Stock Price Chart Receive IOSP Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Innospec and its competitors with MarketBeat's FREE daily newsletter. 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