Quest Diagnostics Inc. Stock Rallies 8.6%, Outperforms Peers

This article was automatically generated by Dow Jones using technology from Automated Insights.

Shares of Quest Diagnostics Inc. advanced 8.6% to $227.90 on what proved to be an all-around dismal trading session for the stock market, with the S&P 500 Index falling 1.2% to 7,408.30 and Dow Jones Industrial Average falling 1.0% to 51,711.65.

This was the stock's second consecutive day of gains.

Quest Diagnostics Inc. hit a new 52-week high, surpassing its previous peak of $219.20, which the company reached on July 7th.

The stock outperformed some of its peers, as UnitedHealth Group Inc. fell 1.8% to $423.56, IQVIA Holdings Inc. rose 4.4% to $207.32, and Centene Corp. fell 3.26% to $63.74.

Trading volume totaled 3.8 million, compared to the 50-day average of 867,920.

Data source: Dow Jones Market Data, FactSet

(END) Dow Jones Newswires

July 23, 2026 16:33 ET (20:33 GMT)