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Side-by-side financial comparison of Quest Diagnostics (DGX) and Seagate Technology (STX). Click either name above to swap in a different company.

Seagate Technology is the larger business by last-quarter revenue ($3.1B vs $2.9B, roughly 1.1× Quest Diagnostics). Seagate Technology runs the higher net margin — 24.0% vs 9.7%, a 14.3% gap on every dollar of revenue. On growth, Seagate Technology posted the faster year-over-year revenue change (44.1% vs 9.2%). Over the past eight quarters, Seagate Technology's revenue compounded faster (19.8% CAGR vs 9.9%).

Quest Diagnostics Incorporated is an American clinical laboratory. A Fortune 500 company, Quest operates in the United States, Puerto Rico, Mexico, and Brazil. Quest also maintains collaborative agreements with various hospitals and clinics across the globe.

Seagate Technology Holdings plc is an American data storage company. It was incorporated in 1978 as Shugart Technology and commenced business in 1979. Since 2010, the company has been incorporated in Dublin, Ireland, with operational headquarters in Fremont, California, United States.

DGX vs STX — Head-to-Head

Bigger by revenue
STX
STX
1.1× larger
STX
$3.1B
$2.9B
DGX
Growing faster (revenue YoY)
STX
STX
+34.9% gap
STX
44.1%
9.2%
DGX
Higher net margin
STX
STX
14.3% more per $
STX
24.0%
9.7%
DGX
Faster 2-yr revenue CAGR
STX
STX
Annualised
STX
19.8%
9.9%
DGX

Income Statement — Q1 FY2026 vs Q1 FY2027

Metric
DGX
DGX
STX
STX
Revenue
$2.9B
$3.1B
Net Profit
$281.0M
$748.0M
Gross Margin
46.5%
Operating Margin
15.4%
32.1%
Net Margin
9.7%
24.0%
Revenue YoY
9.2%
44.1%
Net Profit YoY
12.0%
120.0%
EPS (diluted)
$2.24
$3.27

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
DGX
DGX
STX
STX
Q3 26
$3.1B
Q1 26
$2.9B
$2.8B
Q4 25
$2.8B
$2.6B
Q3 25
$2.8B
Q2 25
$2.8B
$2.4B
Q1 25
$2.7B
$2.2B
Q4 24
$2.6B
$2.3B
Q3 24
$2.5B
$2.2B
Net Profit
DGX
DGX
STX
STX
Q3 26
$748.0M
Q1 26
$281.0M
$593.0M
Q4 25
$245.0M
$549.0M
Q3 25
$245.0M
Q2 25
$282.0M
$488.0M
Q1 25
$220.0M
$340.0M
Q4 24
$222.0M
$336.0M
Q3 24
$226.0M
$305.0M
Gross Margin
DGX
DGX
STX
STX
Q3 26
46.5%
Q1 26
41.6%
Q4 25
32.4%
39.4%
Q3 25
33.7%
Q2 25
34.2%
37.4%
Q1 25
32.5%
35.2%
Q4 24
32.7%
34.9%
Q3 24
32.6%
32.9%
Operating Margin
DGX
DGX
STX
STX
Q3 26
32.1%
Q1 26
15.4%
29.8%
Q4 25
13.8%
26.4%
Q3 25
13.7%
Q2 25
15.9%
23.2%
Q1 25
13.0%
20.0%
Q4 24
13.8%
21.0%
Q3 24
13.3%
18.6%
Net Margin
DGX
DGX
STX
STX
Q3 26
24.0%
Q1 26
9.7%
21.0%
Q4 25
8.7%
20.9%
Q3 25
8.7%
Q2 25
10.2%
20.0%
Q1 25
8.3%
15.7%
Q4 24
8.5%
14.5%
Q3 24
9.1%
14.1%
EPS (diluted)
DGX
DGX
STX
STX
Q3 26
$3.27
Q1 26
$2.24
$2.60
Q4 25
$2.18
$2.43
Q3 25
$2.16
Q2 25
$2.47
$2.24
Q1 25
$1.94
$1.57
Q4 24
$1.95
$1.55
Q3 24
$1.99
$1.41

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
DGX
DGX
STX
STX
Cash + ST InvestmentsLiquidity on hand
$393.0M
$1.1B
Total DebtLower is stronger
$5.7B
$3.9B
Stockholders' EquityBook value
$7.7B
Total Assets
$16.7B
$8.9B
Debt / EquityLower = less leverage
0.74×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DGX
DGX
STX
STX
Q3 26
$1.1B
Q1 26
$393.0M
$1.0B
Q4 25
$420.0M
$1.1B
Q3 25
$432.0M
Q2 25
$319.0M
$891.0M
Q1 25
$188.0M
$814.0M
Q4 24
$549.0M
$1.2B
Q3 24
$764.0M
$1.2B
Total Debt
DGX
DGX
STX
STX
Q3 26
$3.9B
Q1 26
$5.7B
Q4 25
$5.2B
Q3 25
$5.2B
Q2 25
$5.2B
Q1 25
$5.9B
Q4 24
$5.6B
Q3 24
$5.6B
Stockholders' Equity
DGX
DGX
STX
STX
Q3 26
Q1 26
$7.7B
$459.0M
Q4 25
$7.2B
$-63.0M
Q3 25
$7.3B
Q2 25
$7.2B
$-453.0M
Q1 25
$6.9B
$-829.0M
Q4 24
$6.8B
$-1.1B
Q3 24
$6.8B
$-1.3B
Total Assets
DGX
DGX
STX
STX
Q3 26
$8.9B
Q1 26
$16.7B
$8.7B
Q4 25
$16.2B
$8.4B
Q3 25
$16.2B
Q2 25
$16.0B
$8.0B
Q1 25
$15.8B
$7.6B
Q4 24
$16.2B
$8.0B
Q3 24
$16.1B
$8.0B
Debt / Equity
DGX
DGX
STX
STX
Q3 26
Q1 26
0.74×
Q4 25
0.72×
Q3 25
0.71×
Q2 25
0.72×
Q1 25
0.85×
Q4 24
0.83×
Q3 24
0.83×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
DGX
DGX
STX
STX
Operating Cash FlowLast quarter
$278.0M
$2.4B
Free Cash FlowOCF − Capex
$953.0M
FCF MarginFCF / Revenue
30.6%
Capex IntensityCapex / Revenue
3.9%
Cash ConversionOCF / Net Profit
0.99×
3.17×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DGX
DGX
STX
STX
Q3 26
$2.4B
Q1 26
$278.0M
Q4 25
$465.0M
$532.0M
Q3 25
$563.0M
Q2 25
$544.0M
$508.0M
Q1 25
$314.0M
$259.0M
Q4 24
$464.0M
$221.0M
Q3 24
$356.0M
$95.0M
Free Cash Flow
DGX
DGX
STX
STX
Q3 26
$953.0M
Q1 26
Q4 25
$307.0M
$427.0M
Q3 25
$419.0M
Q2 25
$436.0M
$425.0M
Q1 25
$197.0M
$216.0M
Q4 24
$341.0M
$150.0M
Q3 24
$250.0M
$27.0M
FCF Margin
DGX
DGX
STX
STX
Q3 26
30.6%
Q1 26
Q4 25
10.9%
16.2%
Q3 25
14.9%
Q2 25
15.8%
17.4%
Q1 25
7.4%
10.0%
Q4 24
13.0%
6.5%
Q3 24
10.0%
1.2%
Capex Intensity
DGX
DGX
STX
STX
Q3 26
Q1 26
3.9%
Q4 25
5.6%
4.0%
Q3 25
5.1%
Q2 25
3.9%
3.4%
Q1 25
4.4%
2.0%
Q4 24
4.7%
3.1%
Q3 24
4.3%
3.1%
Cash Conversion
DGX
DGX
STX
STX
Q3 26
3.17×
Q1 26
0.99×
Q4 25
1.90×
0.97×
Q3 25
2.30×
Q2 25
1.93×
1.04×
Q1 25
1.43×
0.76×
Q4 24
2.09×
0.66×
Q3 24
1.58×
0.31×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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