DGXNYSE United States
Market cap
$26.307 B
$238.35 -0.06%
Close of 7 Aug 2026
Revenue
$11.0B
#394 by revenue
Earnings
$992.0M
#396 by earnings
Shares outstanding
110,373,360
Latest filing cover page
P/E ratio
26.5
Cap ÷ net income
Where these numbers come from
Share counts and financials for Quest Diagnostics are taken from its own SEC filings via EDGAR — public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Last updated 9 Aug 2026. Read the methodology.