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DGX
Quest Diagnostics IncorporatedStock · HealthcareS&P 500 0.0%
$227.93+$0.03 (+0.01%)as of market close, Jul 24, 2026
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DGX returns by year

Quest Diagnostics Incorporated has returned +16.2% annually (CAGR) since 1997. Calendar-year, monthly and weekly total returns for Quest Diagnostics Incorporated (DGX) below, through July 24, 2026 — the most recent year is year-to-date.

Annualized (CAGR)
+16.2%
1997–2026
Average year
+23.6%
29 full years
Best year
+364.6%
2000
Worst year
-20.7%
2002
Positive years
22/29
76% up

Quest Diagnostics Incorporated returns by year (19972026)#

Calendar-year returns with each year's path and its dividend contribution (dividend return = total minus price return).

Quest Diagnostics Incorporated annual returns by year
YearTotal return
2026YTD
+32.5%
2025
+17.2%
2024
+11.8%
2023
-10.1%
2022
-7.8%
2021
+47.8%
2020
+14.1%
2019
+31.1%
2018
-13.8%
2017
+9.1%
2016
+31.9%
2015
+8.4%

Total return by period

-300%-200%-100%+0%+100%+200%+300%
'97'00'03'06'09'12'15'18'21'24

Methodology#

Returns are total returns (dividends reinvested), computed from DGX's split- and dividend-adjusted closes. The bar chart switches between annual and monthly periods. Annualized return is the compound annual growth rate over the full period. The current year is year-to-date. See also the periodic table of returns. Past performance does not predict future returns; not investment advice.

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FAQ

What is Quest Diagnostics Incorporated's average annual return?
Since 1997, Quest Diagnostics Incorporated (DGX) has returned about 16.2% a year (the compound annual growth rate) and an average calendar-year return of 23.6%.
What were Quest Diagnostics Incorporated's best and worst years?
Over 1997–2026, the best year was 2000 (+364.6%) and the worst was 2002 (-20.7%).
How often is Quest Diagnostics Incorporated up in a year?
22 of the 29 full years since 1997 were positive — about 76% of the time.