Quest Diagnostics (DGX) Stock Chart & Stock Price History $166.13 -0.49 (-0.30%) Closing price 03/27/2025 03:59 PM EasternExtended Trading$166.00 -0.13 (-0.08%) As of 03/27/2025 06:34 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 Quest Diagnostics Stock Price Performance 5 Day Performance-0.50%1 Month Performance-3.15%3 Month Performance+8.84%6 Month Performance+7.38%Year-To-Date Performance+10.12%1 Year Performance+26.76% Receive DGX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Quest Diagnostics and its competitors with MarketBeat's FREE daily newsletter. Email Address DGX Stock Chart for Friday, March, 28, 2025 DGX Chart by TradingViewRemove Ads Quest Diagnostics 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 Capitalization03/26/2025$165.49$166.66+0.71%$168.14$166.07573,844 shs$18.50 billion03/25/2025$167.35$165.49-1.11%$168.13$164.61769,212 shs$18.37 billion03/24/2025$166.96$167.35+0.24%$168.62$165.89670,768 shs$18.57 billion03/21/2025$166.25$166.96+0.43%$167.55$165.881.44 million shs$18.53 billion03/20/2025$167.94$166.25-1.01%$167.80$165.50994,566 shs$18.45 billion03/19/2025$172.22$167.94-2.49%$170.00$163.701.60 million shs$18.64 billion03/18/2025$173.62$172.22-0.81%$174.88$171.311.36 million shs$19.11 billion03/17/2025$170.20$173.62+2.01%$174.38$170.001.07 million shs$19.27 billion03/14/2025$168.80$170.20+0.83%$170.46$168.231.28 million shs$18.89 billion03/13/2025$166.43$168.80+1.42%$169.42$165.761.45 million shs$18.73 billion Get the Latest News and Ratings for DGX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Quest Diagnostics and its competitors with MarketBeat's FREE daily newsletter. 03/12/2025$168.12$166.43-1.01%$167.65$163.001.53 million shs$18.47 billion03/11/2025$173.07$168.12-2.86%$174.68$167.871.44 million shs$18.66 billion03/10/2025$175.49$173.07-1.38%$178.87$172.401.40 million shs$19.21 billion03/07/2025$171.71$175.49+2.20%$176.11$170.131.09 million shs$19.48 billion03/06/2025$171.79$171.71-0.04%$172.13$169.30944,828 shs$19.06 billion03/05/2025$175.16$171.79-1.93%$175.50$171.341.53 million shs$19.06 billion03/04/2025$176.81$175.16-0.93%$177.43$174.801.42 million shs$19.44 billion03/03/2025$172.86$176.81+2.29%$178.09$173.251.33 million shs$19.62 billion02/28/2025$171.54$172.86+0.77%$173.55$171.001.20 million shs$19.18 billion02/27/2025$173.31$171.54-1.02%$173.61$171.401.09 million shs$19.04 billion02/26/2025$175.69$173.31-1.35%$175.76$172.68995,501 shs$19.23 billion Related Companies Laboratory Co. of America Stock Price Chart DaVita Stock Price Chart Chemed Stock Price Chart CorVel Stock Price Chart Amedisys Stock Price Chart Pediatrix Medical Group Stock Price Chart AMN Healthcare Services Stock Price Chart Cross Country Healthcare Stock Price Chart Natera Stock Price Chart Exact Sciences Stock Price Chart Receive DGX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Quest Diagnostics and its competitors with MarketBeat's FREE daily newsletter. 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