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Side-by-side financial comparison of Quest Diagnostics (DGX) and TUTOR PERINI CORP (TPC). Click either name above to swap in a different company.

Quest Diagnostics is the larger business by last-quarter revenue ($2.9B vs $1.5B, roughly 1.9× TUTOR PERINI CORP). Quest Diagnostics runs the higher net margin — 9.7% vs 1.9%, a 7.8% gap on every dollar of revenue. On growth, TUTOR PERINI CORP posted the faster year-over-year revenue change (41.2% vs 9.2%). Over the past eight quarters, TUTOR PERINI CORP's revenue compounded faster (19.9% 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.

Tutor Perini Corporation is one of the largest general contractors in the United States. It was formed by the merger of Perini Corporation and Tutor-Saliba Corporation in 2008. As of 2024, it reported annual revenue of approximately $4.33 billion. Tutor Perini is headquartered in Sylmar, California, and works on construction projects throughout North America. Specific areas of focus are civil infrastructure such as bridges, highways, tunnels, airports, and mass transit systems, building infra...

DGX vs TPC — Head-to-Head

Bigger by revenue
DGX
DGX
1.9× larger
DGX
$2.9B
$1.5B
TPC
Growing faster (revenue YoY)
TPC
TPC
+32.0% gap
TPC
41.2%
9.2%
DGX
Higher net margin
DGX
DGX
7.8% more per $
DGX
9.7%
1.9%
TPC
Faster 2-yr revenue CAGR
TPC
TPC
Annualised
TPC
19.9%
9.9%
DGX

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
DGX
DGX
TPC
TPC
Revenue
$2.9B
$1.5B
Net Profit
$281.0M
$28.8M
Gross Margin
9.8%
Operating Margin
15.4%
3.3%
Net Margin
9.7%
1.9%
Revenue YoY
9.2%
41.2%
Net Profit YoY
12.0%
136.3%
EPS (diluted)
$2.24
$0.53

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
TPC
TPC
Q1 26
$2.9B
Q4 25
$2.8B
$1.5B
Q3 25
$2.8B
$1.4B
Q2 25
$2.8B
$1.4B
Q1 25
$2.7B
$1.2B
Q4 24
$2.6B
$1.1B
Q3 24
$2.5B
$1.1B
Q2 24
$2.4B
$1.1B
Net Profit
DGX
DGX
TPC
TPC
Q1 26
$281.0M
Q4 25
$245.0M
$28.8M
Q3 25
$245.0M
$3.6M
Q2 25
$282.0M
$20.0M
Q1 25
$220.0M
$28.0M
Q4 24
$222.0M
$-79.4M
Q3 24
$226.0M
$-100.9M
Q2 24
$229.0M
$812.0K
Gross Margin
DGX
DGX
TPC
TPC
Q1 26
Q4 25
32.4%
9.8%
Q3 25
33.7%
12.0%
Q2 25
34.2%
14.3%
Q1 25
32.5%
10.8%
Q4 24
32.7%
-0.9%
Q3 24
32.6%
-2.4%
Q2 24
33.5%
10.4%
Operating Margin
DGX
DGX
TPC
TPC
Q1 26
15.4%
Q4 25
13.8%
3.3%
Q3 25
13.7%
2.8%
Q2 25
15.9%
5.6%
Q1 25
13.0%
5.2%
Q4 24
13.8%
-8.1%
Q3 24
13.3%
-9.9%
Q2 24
14.8%
3.6%
Net Margin
DGX
DGX
TPC
TPC
Q1 26
9.7%
Q4 25
8.7%
1.9%
Q3 25
8.7%
0.3%
Q2 25
10.2%
1.5%
Q1 25
8.3%
2.2%
Q4 24
8.5%
-7.4%
Q3 24
9.1%
-9.3%
Q2 24
9.6%
0.1%
EPS (diluted)
DGX
DGX
TPC
TPC
Q1 26
$2.24
Q4 25
$2.18
$0.53
Q3 25
$2.16
$0.07
Q2 25
$2.47
$0.38
Q1 25
$1.94
$0.53
Q4 24
$1.95
$-1.53
Q3 24
$1.99
$-1.92
Q2 24
$2.03
$0.02

Balance Sheet & Financial Strength

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

Metric
DGX
DGX
TPC
TPC
Cash + ST InvestmentsLiquidity on hand
$393.0M
$734.6M
Total DebtLower is stronger
$5.7B
$407.4M
Stockholders' EquityBook value
$7.7B
$1.2B
Total Assets
$16.7B
$5.2B
Debt / EquityLower = less leverage
0.74×
0.33×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DGX
DGX
TPC
TPC
Q1 26
$393.0M
Q4 25
$420.0M
$734.6M
Q3 25
$432.0M
$695.7M
Q2 25
$319.0M
$526.1M
Q1 25
$188.0M
$276.5M
Q4 24
$549.0M
$455.1M
Q3 24
$764.0M
$287.4M
Q2 24
$271.0M
$267.1M
Total Debt
DGX
DGX
TPC
TPC
Q1 26
$5.7B
Q4 25
$5.2B
$407.4M
Q3 25
$5.2B
$413.1M
Q2 25
$5.2B
$419.4M
Q1 25
$5.9B
$405.6M
Q4 24
$5.6B
$534.1M
Q3 24
$5.6B
$681.4M
Q2 24
$3.8B
$676.4M
Stockholders' Equity
DGX
DGX
TPC
TPC
Q1 26
$7.7B
Q4 25
$7.2B
$1.2B
Q3 25
$7.3B
$1.2B
Q2 25
$7.2B
$1.2B
Q1 25
$6.9B
$1.2B
Q4 24
$6.8B
$1.1B
Q3 24
$6.8B
$1.2B
Q2 24
$6.6B
$1.3B
Total Assets
DGX
DGX
TPC
TPC
Q1 26
$16.7B
Q4 25
$16.2B
$5.2B
Q3 25
$16.2B
$5.2B
Q2 25
$16.0B
$4.9B
Q1 25
$15.8B
$4.5B
Q4 24
$16.2B
$4.2B
Q3 24
$16.1B
$4.4B
Q2 24
$13.9B
$4.3B
Debt / Equity
DGX
DGX
TPC
TPC
Q1 26
0.74×
Q4 25
0.72×
0.33×
Q3 25
0.71×
0.35×
Q2 25
0.72×
0.35×
Q1 25
0.85×
0.35×
Q4 24
0.83×
0.47×
Q3 24
0.83×
0.56×
Q2 24
0.58×
0.52×

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
TPC
TPC
Operating Cash FlowLast quarter
$278.0M
$173.7M
Free Cash FlowOCF − Capex
$98.7M
FCF MarginFCF / Revenue
6.5%
Capex IntensityCapex / Revenue
3.9%
5.0%
Cash ConversionOCF / Net Profit
0.99×
6.02×
TTM Free Cash FlowTrailing 4 quarters
$567.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DGX
DGX
TPC
TPC
Q1 26
$278.0M
Q4 25
$465.0M
$173.7M
Q3 25
$563.0M
$289.1M
Q2 25
$544.0M
$262.4M
Q1 25
$314.0M
$22.9M
Q4 24
$464.0M
$329.6M
Q3 24
$356.0M
$22.6M
Q2 24
$360.0M
$53.1M
Free Cash Flow
DGX
DGX
TPC
TPC
Q1 26
Q4 25
$307.0M
$98.7M
Q3 25
$419.0M
$240.2M
Q2 25
$436.0M
$235.6M
Q1 25
$197.0M
$-7.2M
Q4 24
$341.0M
$320.4M
Q3 24
$250.0M
$15.6M
Q2 24
$268.0M
$42.2M
FCF Margin
DGX
DGX
TPC
TPC
Q1 26
Q4 25
10.9%
6.5%
Q3 25
14.9%
17.0%
Q2 25
15.8%
17.1%
Q1 25
7.4%
-0.6%
Q4 24
13.0%
30.0%
Q3 24
10.0%
1.4%
Q2 24
11.2%
3.7%
Capex Intensity
DGX
DGX
TPC
TPC
Q1 26
3.9%
Q4 25
5.6%
5.0%
Q3 25
5.1%
3.5%
Q2 25
3.9%
2.0%
Q1 25
4.4%
2.4%
Q4 24
4.7%
0.9%
Q3 24
4.3%
0.6%
Q2 24
3.8%
1.0%
Cash Conversion
DGX
DGX
TPC
TPC
Q1 26
0.99×
Q4 25
1.90×
6.02×
Q3 25
2.30×
79.63×
Q2 25
1.93×
13.14×
Q1 25
1.43×
0.82×
Q4 24
2.09×
Q3 24
1.58×
Q2 24
1.57×
65.44×

Financial Flow Comparison

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

Revenue Breakdown by Segment

DGX
DGX

Segment breakdown not available.

TPC
TPC

State And Local Agencies$591.1M39%
Mass Transit$449.9M30%
Federal Agencies$115.0M8%
Bridges$100.5M7%
Military Facilities$93.1M6%
Commercial And Industrial Facilities$46.7M3%
Detention Facilities$43.8M3%
Power And Energy$35.8M2%
Multi Unit Residential$25.9M2%
Education Facilities$12.0M1%
Water$3.6M0%

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