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

NIO Inc. is the larger business by last-quarter revenue ($4.7B vs $2.9B, roughly 1.6× Quest Diagnostics). Quest Diagnostics runs the higher net margin — 9.7% vs 0.8%, a 8.9% gap on every dollar of revenue.

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.

Nio Inc. is a Chinese electric vehicle manufacturer headquartered in Shanghai. Founded in 2014, it adopted its current name in 2016. The company designs and sells electric vehicles, including sedans and SUVs, and has expanded into smartphone development.

DGX vs NIO — Head-to-Head

Bigger by revenue
NIO
NIO
1.6× larger
NIO
$4.7B
$2.9B
DGX
Higher net margin
DGX
DGX
8.9% more per $
DGX
9.7%
0.8%
NIO

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
DGX
DGX
NIO
NIO
Revenue
$2.9B
$4.7B
Net Profit
$281.0M
$38.7M
Gross Margin
17.5%
Operating Margin
15.4%
1.5%
Net Margin
9.7%
0.8%
Revenue YoY
9.2%
Net Profit YoY
12.0%
EPS (diluted)
$2.24
$0.05

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
NIO
NIO
Q1 26
$2.9B
$4.7B
Q4 25
$2.8B
Q3 25
$2.8B
$3.0B
Q2 25
$2.8B
$2.6B
Q1 25
$2.7B
$2.7B
Q4 24
$2.6B
Q3 24
$2.5B
Q2 24
$2.4B
Net Profit
DGX
DGX
NIO
NIO
Q1 26
$281.0M
$38.7M
Q4 25
$245.0M
Q3 25
$245.0M
$-505.2M
Q2 25
$282.0M
$-709.5M
Q1 25
$220.0M
$-984.2M
Q4 24
$222.0M
Q3 24
$226.0M
Q2 24
$229.0M
Gross Margin
DGX
DGX
NIO
NIO
Q1 26
17.5%
Q4 25
32.4%
Q3 25
33.7%
13.9%
Q2 25
34.2%
10.0%
Q1 25
32.5%
11.7%
Q4 24
32.7%
Q3 24
32.6%
Q2 24
33.5%
Operating Margin
DGX
DGX
NIO
NIO
Q1 26
15.4%
1.5%
Q4 25
13.8%
Q3 25
13.7%
-16.2%
Q2 25
15.9%
-25.8%
Q1 25
13.0%
-30.6%
Q4 24
13.8%
Q3 24
13.3%
Q2 24
14.8%
Net Margin
DGX
DGX
NIO
NIO
Q1 26
9.7%
0.8%
Q4 25
8.7%
Q3 25
8.7%
-16.8%
Q2 25
10.2%
-27.0%
Q1 25
8.3%
-36.2%
Q4 24
8.5%
Q3 24
9.1%
Q2 24
9.6%
EPS (diluted)
DGX
DGX
NIO
NIO
Q1 26
$2.24
$0.05
Q4 25
$2.18
Q3 25
$2.16
$-1.51
Q2 25
$2.47
$-2.31
Q1 25
$1.94
$-3.47
Q4 24
$1.95
Q3 24
$1.99
Q2 24
$2.03

Balance Sheet & Financial Strength

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

Metric
DGX
DGX
NIO
NIO
Cash + ST InvestmentsLiquidity on hand
$393.0M
$4.4B
Total DebtLower is stronger
$5.7B
Stockholders' EquityBook value
$7.7B
$594.8M
Total Assets
$16.7B
$17.8B
Debt / EquityLower = less leverage
0.74×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DGX
DGX
NIO
NIO
Q1 26
$393.0M
$4.4B
Q4 25
$420.0M
Q3 25
$432.0M
Q2 25
$319.0M
$2.5B
Q1 25
$188.0M
$4.6B
Q4 24
$549.0M
Q3 24
$764.0M
Q2 24
$271.0M
Total Debt
DGX
DGX
NIO
NIO
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
Q2 24
$3.8B
Stockholders' Equity
DGX
DGX
NIO
NIO
Q1 26
$7.7B
$594.8M
Q4 25
$7.2B
Q3 25
$7.3B
Q2 25
$7.2B
$-168.3M
Q1 25
$6.9B
$817.5M
Q4 24
$6.8B
Q3 24
$6.8B
Q2 24
$6.6B
Total Assets
DGX
DGX
NIO
NIO
Q1 26
$16.7B
$17.8B
Q4 25
$16.2B
Q3 25
$16.2B
Q2 25
$16.0B
$14.0B
Q1 25
$15.8B
$14.7B
Q4 24
$16.2B
Q3 24
$16.1B
Q2 24
$13.9B
Debt / Equity
DGX
DGX
NIO
NIO
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×
Q2 24
0.58×

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
NIO
NIO
Operating Cash FlowLast quarter
$278.0M
$427.9M
Free Cash FlowOCF − Capex
$-439.4M
FCF MarginFCF / Revenue
-9.3%
Capex IntensityCapex / Revenue
3.9%
18.4%
Cash ConversionOCF / Net Profit
0.99×
11.07×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DGX
DGX
NIO
NIO
Q1 26
$278.0M
$427.9M
Q4 25
$465.0M
Q3 25
$563.0M
Q2 25
$544.0M
Q1 25
$314.0M
$-1.1B
Q4 24
$464.0M
Q3 24
$356.0M
Q2 24
$360.0M
Free Cash Flow
DGX
DGX
NIO
NIO
Q1 26
$-439.4M
Q4 25
$307.0M
Q3 25
$419.0M
Q2 25
$436.0M
Q1 25
$197.0M
$-2.3B
Q4 24
$341.0M
Q3 24
$250.0M
Q2 24
$268.0M
FCF Margin
DGX
DGX
NIO
NIO
Q1 26
-9.3%
Q4 25
10.9%
Q3 25
14.9%
Q2 25
15.8%
Q1 25
7.4%
-85.6%
Q4 24
13.0%
Q3 24
10.0%
Q2 24
11.2%
Capex Intensity
DGX
DGX
NIO
NIO
Q1 26
3.9%
18.4%
Q4 25
5.6%
Q3 25
5.1%
Q2 25
3.9%
Q1 25
4.4%
46.1%
Q4 24
4.7%
Q3 24
4.3%
Q2 24
3.8%
Cash Conversion
DGX
DGX
NIO
NIO
Q1 26
0.99×
11.07×
Q4 25
1.90×
Q3 25
2.30×
Q2 25
1.93×
Q1 25
1.43×
Q4 24
2.09×
Q3 24
1.58×
Q2 24
1.57×

Financial Flow Comparison

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

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