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

Sandisk Corp is the larger business by last-quarter revenue ($3.0B vs $2.9B, roughly 1.0× Quest Diagnostics). Sandisk Corp runs the higher net margin — 26.5% vs 9.7%, a 16.8% gap on every dollar of revenue. On growth, Sandisk Corp posted the faster year-over-year revenue change (78.5% vs 9.2%).

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.

Sandisk Corporation is an American multinational computer technology company based in Milpitas, California, that designs and manufactures flash memory products, including memory cards, USB flash drives, and solid-state drives. It was founded in 1988 as SunDisk by Eli Harari, Sanjay Mehrotra, and Jack Yuan. The name is a portmanteau of the founder’s name Sanjay and disk.

DGX vs SNDK — Head-to-Head

Bigger by revenue
SNDK
SNDK
1.0× larger
SNDK
$3.0B
$2.9B
DGX
Growing faster (revenue YoY)
SNDK
SNDK
+69.3% gap
SNDK
78.5%
9.2%
DGX
Higher net margin
SNDK
SNDK
16.8% more per $
SNDK
26.5%
9.7%
DGX

Income Statement — Q1 FY2026 vs Q2 FY2026

Metric
DGX
DGX
SNDK
SNDK
Revenue
$2.9B
$3.0B
Net Profit
$281.0M
$803.0M
Gross Margin
50.9%
Operating Margin
15.4%
35.2%
Net Margin
9.7%
26.5%
Revenue YoY
9.2%
78.5%
Net Profit YoY
12.0%
141.5%
EPS (diluted)
$2.24
$5.15

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
SNDK
SNDK
Q1 26
$2.9B
$3.0B
Q4 25
$2.8B
$2.3B
Q3 25
$2.8B
Q2 25
$2.8B
$1.9B
Q1 25
$2.7B
$1.7B
Q4 24
$2.6B
$1.9B
Q3 24
$2.5B
$1.9B
Q2 24
$2.4B
Net Profit
DGX
DGX
SNDK
SNDK
Q1 26
$281.0M
$803.0M
Q4 25
$245.0M
$112.0M
Q3 25
$245.0M
Q2 25
$282.0M
$-23.0M
Q1 25
$220.0M
$-1.9B
Q4 24
$222.0M
$104.0M
Q3 24
$226.0M
$211.0M
Q2 24
$229.0M
Gross Margin
DGX
DGX
SNDK
SNDK
Q1 26
50.9%
Q4 25
32.4%
29.8%
Q3 25
33.7%
Q2 25
34.2%
26.2%
Q1 25
32.5%
22.5%
Q4 24
32.7%
32.3%
Q3 24
32.6%
38.6%
Q2 24
33.5%
Operating Margin
DGX
DGX
SNDK
SNDK
Q1 26
15.4%
35.2%
Q4 25
13.8%
7.6%
Q3 25
13.7%
Q2 25
15.9%
0.9%
Q1 25
13.0%
-111.0%
Q4 24
13.8%
10.4%
Q3 24
13.3%
15.5%
Q2 24
14.8%
Net Margin
DGX
DGX
SNDK
SNDK
Q1 26
9.7%
26.5%
Q4 25
8.7%
4.9%
Q3 25
8.7%
Q2 25
10.2%
-1.2%
Q1 25
8.3%
-114.0%
Q4 24
8.5%
5.5%
Q3 24
9.1%
11.2%
Q2 24
9.6%
EPS (diluted)
DGX
DGX
SNDK
SNDK
Q1 26
$2.24
$5.15
Q4 25
$2.18
$0.75
Q3 25
$2.16
Q2 25
$2.47
$-0.17
Q1 25
$1.94
$-13.33
Q4 24
$1.95
$0.72
Q3 24
$1.99
$1.46
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
SNDK
SNDK
Cash + ST InvestmentsLiquidity on hand
$393.0M
$1.5B
Total DebtLower is stronger
$5.7B
$603.0M
Stockholders' EquityBook value
$7.7B
$10.2B
Total Assets
$16.7B
$13.0B
Debt / EquityLower = less leverage
0.74×
0.06×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DGX
DGX
SNDK
SNDK
Q1 26
$393.0M
$1.5B
Q4 25
$420.0M
$1.4B
Q3 25
$432.0M
Q2 25
$319.0M
$1.5B
Q1 25
$188.0M
$1.5B
Q4 24
$549.0M
$804.0M
Q3 24
$764.0M
Q2 24
$271.0M
Total Debt
DGX
DGX
SNDK
SNDK
Q1 26
$5.7B
$603.0M
Q4 25
$5.2B
$1.4B
Q3 25
$5.2B
Q2 25
$5.2B
$1.8B
Q1 25
$5.9B
$1.9B
Q4 24
$5.6B
Q3 24
$5.6B
Q2 24
$3.8B
Stockholders' Equity
DGX
DGX
SNDK
SNDK
Q1 26
$7.7B
$10.2B
Q4 25
$7.2B
$9.4B
Q3 25
$7.3B
Q2 25
$7.2B
$9.2B
Q1 25
$6.9B
$9.2B
Q4 24
$6.8B
$12.0B
Q3 24
$6.8B
$12.1B
Q2 24
$6.6B
Total Assets
DGX
DGX
SNDK
SNDK
Q1 26
$16.7B
$13.0B
Q4 25
$16.2B
$12.7B
Q3 25
$16.2B
Q2 25
$16.0B
$13.0B
Q1 25
$15.8B
$13.0B
Q4 24
$16.2B
$14.2B
Q3 24
$16.1B
Q2 24
$13.9B
Debt / Equity
DGX
DGX
SNDK
SNDK
Q1 26
0.74×
0.06×
Q4 25
0.72×
0.14×
Q3 25
0.71×
Q2 25
0.72×
0.20×
Q1 25
0.85×
0.21×
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
SNDK
SNDK
Operating Cash FlowLast quarter
$278.0M
$1.0B
Free Cash FlowOCF − Capex
$980.0M
FCF MarginFCF / Revenue
32.4%
Capex IntensityCapex / Revenue
3.9%
1.3%
Cash ConversionOCF / Net Profit
0.99×
1.27×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DGX
DGX
SNDK
SNDK
Q1 26
$278.0M
$1.0B
Q4 25
$465.0M
$488.0M
Q3 25
$563.0M
Q2 25
$544.0M
Q1 25
$314.0M
$26.0M
Q4 24
$464.0M
$95.0M
Q3 24
$356.0M
$-131.0M
Q2 24
$360.0M
Free Cash Flow
DGX
DGX
SNDK
SNDK
Q1 26
$980.0M
Q4 25
$307.0M
$438.0M
Q3 25
$419.0M
Q2 25
$436.0M
Q1 25
$197.0M
$-18.0M
Q4 24
$341.0M
$47.0M
Q3 24
$250.0M
$-198.0M
Q2 24
$268.0M
FCF Margin
DGX
DGX
SNDK
SNDK
Q1 26
32.4%
Q4 25
10.9%
19.0%
Q3 25
14.9%
Q2 25
15.8%
Q1 25
7.4%
-1.1%
Q4 24
13.0%
2.5%
Q3 24
10.0%
-10.5%
Q2 24
11.2%
Capex Intensity
DGX
DGX
SNDK
SNDK
Q1 26
3.9%
1.3%
Q4 25
5.6%
2.2%
Q3 25
5.1%
Q2 25
3.9%
Q1 25
4.4%
2.6%
Q4 24
4.7%
2.6%
Q3 24
4.3%
3.6%
Q2 24
3.8%
Cash Conversion
DGX
DGX
SNDK
SNDK
Q1 26
0.99×
1.27×
Q4 25
1.90×
4.36×
Q3 25
2.30×
Q2 25
1.93×
Q1 25
1.43×
Q4 24
2.09×
0.91×
Q3 24
1.58×
-0.62×
Q2 24
1.57×

Financial Flow Comparison

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

Revenue Breakdown by Segment

DGX
DGX

Segment breakdown not available.

SNDK
SNDK

Edge$1.7B55%
Consumer$907.0M30%
Datacenter$440.0M15%

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