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Side-by-side financial comparison of BillionToOne, Inc. (BLLN) and CareDx, Inc. (CDNA). Click either name above to swap in a different company.

CareDx, Inc. is the larger business by last-quarter revenue ($108.4M vs $83.5M, roughly 1.3× BillionToOne, Inc.). BillionToOne, Inc. runs the higher net margin — 6.8% vs -3.8%, a 10.6% gap on every dollar of revenue. On growth, BillionToOne, Inc. posted the faster year-over-year revenue change (117.4% vs 25.2%).

BillionToOne, Inc. is a life sciences and molecular diagnostics firm developing high-precision genetic testing solutions. Its core offerings include non-invasive prenatal tests, oncology diagnostics, and rare disease screening, serving clinical providers and patients mainly in North America.

CareDx, Inc. is a leading precision medicine company dedicated to organ transplant patient care. It develops and commercializes diagnostic tests for rejection surveillance, digital health management tools, and supportive clinical services, catering to transplant clinicians, patients, and healthcare systems across North America and European core markets.

BLLN vs CDNA — Head-to-Head

Bigger by revenue
CDNA
CDNA
1.3× larger
CDNA
$108.4M
$83.5M
BLLN
Growing faster (revenue YoY)
BLLN
BLLN
+92.2% gap
BLLN
117.4%
25.2%
CDNA
Higher net margin
BLLN
BLLN
10.6% more per $
BLLN
6.8%
-3.8%
CDNA

Income Statement — Q3 2025 vs Q4 2025

Metric
BLLN
BLLN
CDNA
CDNA
Revenue
$83.5M
$108.4M
Net Profit
$5.7M
$-4.1M
Gross Margin
69.9%
Operating Margin
11.5%
-5.6%
Net Margin
6.8%
-3.8%
Revenue YoY
117.4%
25.2%
Net Profit YoY
138.3%
-104.7%
EPS (diluted)
$0.10
$-0.08

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
BLLN
BLLN
CDNA
CDNA
Q4 25
$108.4M
Q3 25
$83.5M
$100.1M
Q2 25
$86.7M
Q1 25
$84.7M
Q4 24
$86.6M
Q3 24
$38.4M
$82.9M
Q2 24
$92.3M
Q1 24
$72.0M
Net Profit
BLLN
BLLN
CDNA
CDNA
Q4 25
$-4.1M
Q3 25
$5.7M
$1.7M
Q2 25
$-8.6M
Q1 25
$-10.4M
Q4 24
$87.7M
Q3 24
$-14.9M
$-10.6M
Q2 24
$-4.6M
Q1 24
$-19.9M
Gross Margin
BLLN
BLLN
CDNA
CDNA
Q4 25
Q3 25
69.9%
Q2 25
Q1 25
Q4 24
Q3 24
52.6%
Q2 24
Q1 24
Operating Margin
BLLN
BLLN
CDNA
CDNA
Q4 25
-5.6%
Q3 25
11.5%
-0.2%
Q2 25
-12.8%
Q1 25
-15.8%
Q4 24
97.5%
Q3 24
-32.9%
-16.6%
Q2 24
-7.9%
Q1 24
-31.3%
Net Margin
BLLN
BLLN
CDNA
CDNA
Q4 25
-3.8%
Q3 25
6.8%
1.7%
Q2 25
-9.9%
Q1 25
-12.2%
Q4 24
101.3%
Q3 24
-38.8%
-12.8%
Q2 24
-5.0%
Q1 24
-27.6%
EPS (diluted)
BLLN
BLLN
CDNA
CDNA
Q4 25
$-0.08
Q3 25
$0.10
$0.03
Q2 25
$-0.16
Q1 25
$-0.19
Q4 24
$1.60
Q3 24
$-1.47
$-0.20
Q2 24
$-0.09
Q1 24
$-0.38

Balance Sheet & Financial Strength

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

Metric
BLLN
BLLN
CDNA
CDNA
Cash + ST InvestmentsLiquidity on hand
$195.2M
$177.2M
Total DebtLower is stronger
$55.0M
Stockholders' EquityBook value
$-239.5M
$303.1M
Total Assets
$327.5M
$413.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BLLN
BLLN
CDNA
CDNA
Q4 25
$177.2M
Q3 25
$195.2M
$194.2M
Q2 25
$186.3M
Q1 25
$230.9M
Q4 24
$260.7M
Q3 24
$240.9M
Q2 24
$228.9M
Q1 24
$215.9M
Total Debt
BLLN
BLLN
CDNA
CDNA
Q4 25
Q3 25
$55.0M
Q2 25
Q1 25
Q4 24
Q3 24
$0
Q2 24
$0
Q1 24
Stockholders' Equity
BLLN
BLLN
CDNA
CDNA
Q4 25
$303.1M
Q3 25
$-239.5M
$311.1M
Q2 25
$327.4M
Q1 25
$379.3M
Q4 24
$378.4M
Q3 24
$-242.9M
$273.2M
Q2 24
$264.7M
Q1 24
$256.2M
Total Assets
BLLN
BLLN
CDNA
CDNA
Q4 25
$413.2M
Q3 25
$327.5M
$432.3M
Q2 25
$444.3M
Q1 25
$489.6M
Q4 24
$491.1M
Q3 24
$477.0M
Q2 24
$466.8M
Q1 24
$452.4M
Debt / Equity
BLLN
BLLN
CDNA
CDNA
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
0.00×
Q2 24
0.00×
Q1 24

Cash Flow & Capital Efficiency

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

Metric
BLLN
BLLN
CDNA
CDNA
Operating Cash FlowLast quarter
$13.8M
$21.4M
Free Cash FlowOCF − Capex
$6.5M
FCF MarginFCF / Revenue
7.7%
Capex IntensityCapex / Revenue
8.8%
Cash ConversionOCF / Net Profit
2.42×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BLLN
BLLN
CDNA
CDNA
Q4 25
$21.4M
Q3 25
$13.8M
$37.4M
Q2 25
$9.9M
Q1 25
$-26.6M
Q4 24
$21.9M
Q3 24
$12.5M
Q2 24
$18.9M
Q1 24
$-15.3M
Free Cash Flow
BLLN
BLLN
CDNA
CDNA
Q4 25
Q3 25
$6.5M
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
FCF Margin
BLLN
BLLN
CDNA
CDNA
Q4 25
Q3 25
7.7%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Capex Intensity
BLLN
BLLN
CDNA
CDNA
Q4 25
Q3 25
8.8%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Cash Conversion
BLLN
BLLN
CDNA
CDNA
Q4 25
Q3 25
2.42×
22.30×
Q2 25
Q1 25
Q4 24
0.25×
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

BLLN
BLLN

Prenatal$74.1M89%
Oncology$8.7M10%

CDNA
CDNA

Services$78.4M72%
Patient And Digital Solutions$16.8M15%
Products$13.3M12%

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