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Shares of Quest Diagnostics Inc. (DGX) rallied 1.15% to $181.57 Thursday, on what proved to be an all-around great trading session for the stock market, with the S&amp;P 500 Index  rising 0.21% to 6,901.00 and the Dow Jones Industrial Average  rising 1.34% to 48,704.01.
The stock's rise snapped a four-day losing streak.
Quest Diagnostics Inc. closed 8.09% below its 52-week high of $197.55, which the company reached on October 21st.
The stock underperformed when compared to some of its competitors Thursday, as UnitedHealth Group Inc. (UNH) rose 2.55% to $336.73, IQVIA Holdings Inc. (IQV) rose 1.37% to $225.98, and Centene Corp. (CNC) rose 4.63% to $40.46.
Trading volume (686,869) remained 448,220 below its 50-day average volume of 1.1 M.
Data source: Dow Jones Market Data, FactSet. Data compiled December 11, 2025.
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(END) Dow Jones Newswires
12-11-25 1707ET

<p>Quest Diagnostics Inc. stock rose 1.15% to $181.57 on Thursday, ending a four-day losing streak, but underperformed compared to competitors like UnitedHealth Group, IQVIA Holdings, and Centene Corp. Despite gains, it remains 8.09% below its 52-week high. Trading volume was below the 50-day average.</p>

Quest Diagnostics Inc. Stock Underperforms Thursday When Compared To Competitors Despite Daily Gains