Koppers (KOP) Stock Chart & Stock Price History $29.20 +0.48 (+1.65%) Closing price 10/24/2025 03:59 PM EasternExtended Trading$29.16 -0.04 (-0.12%) As of 10/24/2025 05:01 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 InterestSustainabilityTrendsBuy This Stock Koppers Stock Price Performance The Koppers (KOP) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 14.86%, with a year-to-date return of -9.89%. In the past month, the stock has increased 2.82%, reflecting recent market activity. As of the latest close, Koppers traded at $29.20 with a market cap of $575.73 million and volume of 85,607 shares. Five years ago, the stock traded at $24.67, representing a 18.34% increase over that period. At the time, it had a market cap of $519.21 million and a volume of 310,105 shares. Receive KOP Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Koppers and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Read our full terms of service and privacy policy. 5 Day Performance+4.17%1 Month Performance+2.82%3 Month Performance-15.46%Year-To-Date Performance-9.89%1 Year Performance-14.86%5 Year Performance+18.34% KOP Stock Chart for Sunday, October, 26, 2025 KOP Chart by TradingView Koppers Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization10/24/2025$28.81$29.20+1.34%$29.44$29.0785,607 shs$575.73 million10/23/2025$28.39$28.81+1.47%$29.04$28.30104,670 shs$568.13 million10/22/2025$28.03$28.39+1.31%$28.44$27.94145,003 shs$559.80 million10/21/2025$27.01$28.03+3.76%$28.03$27.00153,347 shs$552.65 million10/20/2025$26.74$27.01+1.01%$27.15$26.57119,246 shs$532.64 million10/17/2025$26.66$26.74+0.30%$26.90$26.45131,131 shs$527.31 million10/16/2025$26.53$26.66+0.49%$26.74$26.17116,367 shs$525.74 million10/15/2025$26.73$26.53-0.75%$27.39$26.26101,852 shs$523.17 million10/14/2025$26.73$26.73+0.00%$26.99$26.3894,669 shs$527.14 million10/13/2025$26.35$26.73+1.44%$26.94$26.55146,680 shs$527.12 million Get the Latest News and Ratings for KOP and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Koppers and its competitors with MarketBeat's FREE daily newsletter. 10/10/2025$26.52$26.35-0.64%$26.84$26.16181,319 shs$519.62 million10/09/2025$26.56$26.52-0.15%$26.79$26.34190,956 shs$522.87 million10/08/2025$26.50$26.56+0.23%$26.65$26.30114,814 shs$523.76 million10/07/2025$26.80$26.50-1.12%$27.13$26.37153,085 shs$522.58 million10/06/2025$26.96$26.80-0.59%$27.14$26.22175,209 shs$528.39 million10/03/2025$26.99$26.96-0.12%$27.49$26.91157,808 shs$531.54 million10/02/2025$27.89$26.99-3.21%$28.07$26.91137,841 shs$532.30 million10/01/2025$27.99$27.89-0.36%$27.98$27.46135,347 shs$549.95 million09/30/2025$27.78$27.99+0.76%$28.22$27.39123,755 shs$551.85 million09/29/2025$28.39$27.78-2.16%$28.63$27.75138,789 shs$547.82 million09/26/2025$28.20$28.39+0.71%$28.68$28.15121,925 shs$559.93 million09/25/2025$28.79$28.20-2.07%$28.75$28.10127,678 shs$556.01 million Related Companies Linde Stock Chart Cabot Stock Chart H. B. Fuller Stock Chart Manitowoc Stock Chart Kronos Worldwide Stock Chart Tredegar Stock Chart LyondellBasell Industries Stock Chart Westlake Stock Chart Hawkins Stock Chart Chemours Stock Chart Receive KOP Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Koppers and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:KOP) was last updated on 10/26/2025 by MarketBeat.com Staff From Our PartnersU.S. Government Sparking Crypto RallyMissed Bitcoin when it was $100? You’re not alone. Crypto runs in cycles—and the next one is already underw...Crypto 101 Media | SponsoredIt’s Time to Buy “the NVIDIA of Quantum Computing”Yahoo Finance wrote that investing in quantum computing could... 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