Koppers (KOP) Stock Chart & Stock Price History $30.25 -0.12 (-0.39%) Closing price 05/23/2025 03:59 PM EasternExtended Trading$30.24 -0.02 (-0.06%) As of 05/23/2025 05:11 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 29.48%, with a year-to-date return of -6.63%. In the past month, the stock has increased 18.36%, reflecting recent market activity. As of the latest close, Koppers traded at $30.25 with a market cap of $605.36 million and volume of 177,812 shares. Five years ago, the stock traded at $15.98, representing a 89.32% increase over that period. At the time, it had a market cap of $332.85 million and a volume of 265,338 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. Email Address 5 Day Performance-3.56%1 Month Performance+18.36%3 Month Performance-1.78%Year-To-Date Performance-6.63%1 Year Performance-29.48%5 Year Performance+89.32% KOP Stock Chart for Saturday, May, 24, 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 Capitalization05/23/2025$30.40$30.25-0.48%$30.42$29.67177,812 shs$605.36 million05/22/2025$30.48$30.40-0.25%$30.68$29.86121,411 shs$608.30 million05/21/2025$31.41$30.48-2.98%$31.01$30.36138,341 shs$609.81 million05/20/2025$31.37$31.41+0.13%$31.64$31.01129,575 shs$628.51 million05/19/2025$31.29$31.37+0.27%$31.60$30.58134,310 shs$627.71 million05/16/2025$31.42$31.29-0.43%$31.52$30.80150,119 shs$640.93 million05/15/2025$30.67$31.42+2.45%$31.43$29.96196,264 shs$643.67 million05/14/2025$30.40$30.67+0.89%$30.94$30.07281,311 shs$628.31 million05/13/2025$29.66$30.40+2.50%$30.55$29.34231,187 shs$622.77 million05/12/2025$27.06$29.66+9.60%$29.91$28.35292,871 shs$607.59 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. 05/09/2025$26.15$27.06+3.50%$29.01$26.90202,053 shs$554.35 million05/08/2025$25.01$26.15+4.54%$26.19$25.23161,069 shs$535.61 million05/07/2025$25.17$25.01-0.64%$25.43$24.78118,284 shs$512.36 million05/06/2025$25.42$25.17-0.98%$25.63$25.01105,125 shs$515.67 million05/05/2025$25.99$25.42-2.17%$26.07$25.41115,667 shs$520.75 million05/02/2025$25.20$25.99+3.10%$26.30$25.15141,004 shs$532.33 million05/01/2025$25.09$25.20+0.45%$25.37$24.63126,352 shs$516.33 million04/30/2025$25.39$25.09-1.16%$25.12$24.24159,882 shs$513.99 million04/29/2025$25.22$25.39+0.65%$25.48$24.72129,344 shs$520.04 million04/28/2025$25.29$25.22-0.28%$25.74$24.91130,405 shs$516.66 million04/25/2025$25.56$25.29-1.06%$25.32$24.66168,597 shs$518.09 million04/24/2025$24.73$25.56+3.37%$25.75$24.43156,194 shs$523.62 million04/23/2025$24.58$24.73+0.61%$25.67$24.45247,308 shs$506.56 million Related Companies Kronos Worldwide Stock Chart Tredegar Stock Chart LyondellBasell Industries Stock Chart Westlake Stock Chart Cabot Stock Chart Hawkins Stock Chart Louisiana-Pacific Stock Chart Trex Stock Chart Sandstorm Gold Stock Chart Ashland 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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