QUEST DIAGNOSTICS INC

DGX

Quality scores

Data as of Sep 5, 2026

8 / 9

Strong

8/9 — SOLID fundamentals (high quality).

PassROA > 0 — ROA last year = 6.11 %
PassFCF > 0 — FCF last year = 1,359.00 mill.
PassFCF > net income (accrual quality) — FCF 1,359.00 vs. net income 992.00 (mill.)
PassRising ROA — ROA 6.11 % vs. prior year 5.39 %

PassLower long-term leverage — long-term debt/assets 0.32 vs. prior 0.35
FailRising current ratio (more liquidity) — Current ratio 1.04 vs. prior 1.10
PassNo dilution (shares do not grow) — Shares 110.00 mill. vs. prior 111.00 mill.

Z-Score (original)

3.62

Safe zone

Z''-Score (non-manufacturing)

6.79

Safe zone

Ratio	Value
X1 — Working capital / Total assets	0.01
X2 — Retained earnings / Total assets	0.62
X3 — EBIT / Total assets	0.10
X4 — Market cap / Total liabilities	2.92
X4 — Book equity / Total liabilities	0.80
X5 — Sales / Total assets	0.68