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QUEST DIAGNOSTICS INC DGX

NYSE · stock · Services-Medical Laboratories · website · IPO 1996-12-17 · LEI

QUEST DIAGNOSTICS INC statistics & valuation

Market cap$23.2B
P / E23.4×
P / S2.1×
P / B3.2×
P / FCF17.1×
Dividend yield1.52%
Net margin9.0%
Return on equity13.8%
FCF margin12.3%
Net debt$5.3B
Net debt / EBITDA2.5×
Enterprise value USD$28.5B
EV / EBITDA13.4×
Earnings yield EBIT/EV5.5%
Return on capital11.2%
Graham number -52.9%$112.05

Market cap as of 2026-06-29. Multiples are price-derived and refreshed daily; everything else from the latest financial reports. The Graham number is Benjamin Graham's rough maximum fair value ($112.05); a green figure means the price is below it.

Profitability & efficiency

Net margin (%)
8.90% 10.40% 9.80% 11.10% 15.20% 18.50% 9.60% 9.20% 8.80% 9.00% 2016201720182019202020212022202320242025
Gross margin (%)
40.20% 36.20% 34.60% 34.80% 38.50% 2016201720182019202020212022202320242025
Operating margin (%)
17.70% 15.70% 14.60% 15.90% 20.90% 22.10% 14.40% 13.60% 13.60% 14.10% 2016201720182019202020212022202320242025
Return on equity (%)
13.80% 15.60% 14.00% 15.10% 21.00% 30.80% 16.00% 13.50% 12.80% 13.80% 2016201720182019202020212022202320242025
Shares outstanding
142.0M 140.0M 139.0M 136.0M 136.0M 128.0M 118.0M 113.0M 113.0M 113.0M 2016201720182019202020212022202320242025
Net debt ($)
$3.38B $3.65B $3.76B $3.58B $2.86B $3.14B $3.67B $4.03B $5.67B $5.25B 2016201720182019202020212022202320242025
Share buybacks ($)
2016201720182019202020212022202320242025
Return on assets (%)
6.40% 7.40% 6.70% 6.70% 10.20% 14.70% 7.40% 6.10% 5.40% 6.10% 2016201720182019202020212022202320242025
Free cash flow margin (%)
11.40% 12.50% 10.80% 10.90% 16.80% 17.00% 13.30% 9.30% 9.20% 12.30% 2016201720182019202020212022202320242025
Debt / equity (×)
0.80× 0.76× 0.74× 0.84× 0.59× 0.62× 0.67× 0.74× 0.91× 0.79× 2016201720182019202020212022202320242025
EPS ($)
$4.51 $5.50 $5.29 $6.28 $10.47 $15.55 $7.97 $7.49 $7.69 $8.75 2016201720182019202020212022202320242025

Margins and returns computed from annual filings. Falling shares outstanding = buybacks; rising = dilution. Net debt = debt − cash (negative = net cash).

P / E vs its own history

QUEST DIAGNOSTICS INC trades at about 27.2× earnings — above its 10-year norm (10-year range 8.7×–21.4×, median 18.6×).

8.7× 27.2×

Shaded band = 10-year range (8.7×–21.4×); dot = today's 27.2×.

Historical P/E = month-end price near each fiscal year-end ÷ that year's EPS. A read on whether the stock is cheap or dear relative to how it has typically been valued — not a forecast.

Key ratios (by fiscal year)

RatioFY2025FY2024FY2023FY2022FY2021FY2020FY2019FY2018FY2017FY2016
Gross margin—————38.5%34.8%34.6%36.2%40.2%
Operating margin14.1%13.6%13.6%14.4%22.1%20.9%15.9%14.6%15.7%17.7%
Net margin9.0%8.8%9.2%9.6%18.5%15.2%11.1%9.8%10.4%8.9%
FCF margin12.3%9.2%9.3%13.3%17.0%16.8%10.9%10.8%12.5%11.4%
Return on assets6.1%5.4%6.1%7.4%14.7%10.2%6.7%6.7%7.4%6.4%
Return on equity13.8%12.8%13.5%16.0%30.8%21.0%15.1%14.0%15.6%13.8%
Debt / equity0.79×0.91×0.74×0.67×0.62×0.59×0.84×0.74×0.76×0.80×
Current ratio1.041.101.311.221.561.721.250.941.241.56

Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.