Which has the lower trailing P/E, DGX or DXCM?

DGX has the lower trailing P/E: DGX trades at 26.25 and DXCM at 34.17. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, DGX or DXCM?

Over the past five years, DXCM grew revenue faster — DGX at a 0.89% CAGR versus DXCM at 18.03%.

Does DGX or DXCM pay a bigger dividend?

DGX pays a dividend (1.41% yield), while DXCM has no payments in the available dividend history.

Is DGX or DXCM more profitable?

DXCM runs the higher net margin — DGX at 9.19% versus DXCM at 20.12%.

Quest Diagnostics Incorporated (DGX) vs DexCom, Inc. (DXCM)

A side-by-side comparison of Quest Diagnostics Incorporated and DexCom, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 13, 2026. Differences are shown without an overall score or investment verdict.

DGX

Quest Diagnostics Incorporated

$27.29B

$247.29HealthcareDelayed quote: Sep 15, 2026, 4:00 PM EDT

DXCM

DexCom, Inc.

$32.62B

$86.45HealthcareDelayed quote: Sep 15, 2026, 4:00 PM EDT

Total return — DGX vs DXCM

growth of $100 · dividends reinvested · last 10y

DGX +249.2% (+13.3%/yr)DXCM +261.5% (+13.7%/yr)DXCM compounded faster over this window

DGX DXCM

DGX vs DXCM: by the numbers

•DXCM is the larger company ($32.62B vs $27.29B market cap).
•DGX trades at the lower trailing earnings multiple (26.25 vs 34.17 P/E), one valuation lens rather than an overall verdict.
•DXCM converts more revenue to profit (20.12% vs 9.19% net margin).
•DXCM grew revenue faster over the past five years (18.03% vs 0.89% CAGR).
•DGX pays a dividend (1.41% yield), while DXCM has no payments in the available dividend history.

Metrics side by side

Valuation

Metric	DGX	DXCM
P/E ratio	26.25	34.17
Forward P/E	22.10	32.41
P/S ratio	2.36	6.57
P/B ratio	3.63	12.44
EV / EBITDA	16.55	23.46
FCF yield	4.47%	4.31%

Profitability

Metric	DGX	DXCM
Gross margin	33.15%	62.47%
Operating margin	14.14%	22.92%
Net margin	9.19%	20.12%
ROE	14.13%	38.14%
ROIC	8.25%	21.71%

Dividends

Metric	DGX	DXCM
Dividend yield	1.41%	N/A
Payout ratio	35.24%	N/A

Growth (annualized)

Metric	DGX	DXCM
Revenue CAGR (5Y)	0.89%	18.03%
EPS CAGR (5Y)	-3.65%	10.31%
FCF CAGR (5Y)	-10.89%	69.49%
Total return CAGR (5Y)	10.93%	-9.57%

Frequently asked

Which has the lower trailing P/E, DGX or DXCM?: DGX has the lower trailing P/E: DGX trades at 26.25 and DXCM at 34.17. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, DGX or DXCM?: Over the past five years, DXCM grew revenue faster — DGX at a 0.89% CAGR versus DXCM at 18.03%.
Does DGX or DXCM pay a bigger dividend?: DGX pays a dividend (1.41% yield), while DXCM has no payments in the available dividend history.
Is DGX or DXCM more profitable?: DXCM runs the higher net margin — DGX at 9.19% versus DXCM at 20.12%.

Go deeper

Full DGX analysis Full DXCM analysis Interactive comparison tool

Dig into the metrics

Quest Diagnostics P/E ratio DexCom P/E ratio Quest Diagnostics dividend yield Quest Diagnostics ROE DexCom ROE Quest Diagnostics operating margin DexCom operating margin Quest Diagnostics revenue growth DexCom revenue growth Quest Diagnostics free cash flow DexCom free cash flow

Quest Diagnostics & DexCom appear in these rankings

Fastest Revenue Growth Stocks Highest ROE Stocks Highest ROIC Stocks Highest FCF Yield Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 13, 2026.