Quest Diagnostics Inc. reached a fresh all-time high of $247.32 on Monday, surpassing its previous peak of $247.19 and marking a 1% gain from the 52-week high. The stock has climbed nearly 39% year-to-date, following a 37.17% increase over the past year. With a price-to-earnings ratio of 26.17, the company’s valuation remains elevated relative to its fair-value estimate, according to InvestingPro analysis, despite a consistent dividend growth streak of 15 consecutive years.
Quest Diagnostics stock climbs to $247.3 all-time high
The diagnostic testing giant’s shares surged past its 52-week high, driven by strong earnings and elevated valuation metrics.
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Priya Anand · Equities & Earnings Desk · 16 Sept 2026 · 15:44 · 1 min read
This article was produced with AI assistance and edited by a Finance Review Daily journalist.
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Written by
Priya Anand
Equities & Earnings Desk
Priya covers listed equities and corporate earnings, reading quarterly results and guidance for what they signal about sector health and forward valuations.
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