Koppers (KOP) Stock Chart & Stock Price History $25.02 -0.98 (-3.77%) Closing price 03:59 PM EasternExtended Trading$24.88 -0.14 (-0.56%) As of 05:52 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 5 Day Performance-10.40%1 Month Performance-10.27%3 Month Performance-21.12%6 Month Performance-31.68%Year-To-Date Performance-22.78%1 Year Performance-54.59% 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. Email Address KOP Stock Chart for Friday, April, 4, 2025 KOP Chart by TradingViewRemove Ads Koppers 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 Capitalization04/04/2025$26.01$25.02-3.79%$25.10$23.81275,004 shs$512.56 million04/03/2025$28.00$26.01-7.13%$26.66$25.58164,436 shs$532.74 million04/02/2025$27.71$28.00+1.06%$28.04$27.0899,970 shs$573.61 million04/01/2025$28.02$27.71-1.11%$28.04$27.32114,300 shs$567.57 million03/31/2025$27.93$28.02+0.33%$28.16$27.55125,646 shs$573.96 million03/28/2025$29.22$27.93-4.44%$29.05$27.38167,893 shs$572.07 million03/27/2025$28.70$29.22+1.81%$29.31$28.13135,956 shs$598.66 million03/26/2025$28.34$28.70+1.28%$28.88$28.28139,834 shs$588.03 million03/25/2025$28.69$28.34-1.21%$28.64$28.18228,372 shs$580.57 million03/24/2025$28.12$28.69+2.04%$28.77$28.44247,779 shs$587.70 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. 03/21/2025$29.80$28.12-5.65%$29.43$28.09544,499 shs$575.96 million03/20/2025$29.20$29.80+2.05%$30.12$28.56275,364 shs$610.48 million03/19/2025$30.73$29.20-4.96%$30.65$28.50277,277 shs$598.19 million03/18/2025$30.08$30.73+2.15%$31.24$29.78213,293 shs$629.43 million03/17/2025$30.02$30.08+0.18%$30.53$29.44205,210 shs$616.20 million03/14/2025$28.38$30.02+5.80%$30.08$28.43183,221 shs$615.07 million03/13/2025$29.59$28.38-4.09%$29.95$28.04146,011 shs$581.35 million03/12/2025$30.00$29.59-1.37%$30.12$29.21249,676 shs$606.14 million03/11/2025$29.93$30.00+0.24%$30.35$29.45216,041 shs$614.56 million03/10/2025$29.88$29.93+0.17%$30.39$29.45182,114 shs$613.11 million03/07/2025$29.70$29.88+0.61%$30.02$29.31251,911 shs$605.56 million03/06/2025$28.58$29.70+3.90%$29.99$28.26175,572 shs$601.89 million03/05/2025$27.89$28.58+2.49%$28.80$27.77190,294 shs$579.29 million03/04/2025$27.89$27.89-0.02%$28.10$27.00223,038 shs$565.20 million03/03/2025$29.07$27.89-4.04%$29.44$27.69312,304 shs$590.03 million Related Companies Hawkins Stock Chart Kronos Worldwide Stock Chart Tredegar Stock Chart LyondellBasell Industries Stock Chart Westlake Stock Chart Cabot Stock Chart Trex Stock Chart Louisiana-Pacific Stock Chart Quaker Chemical Stock Chart Companhia Siderúrgica Nacional 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. 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