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

BillionToOne, Inc. is the larger business by last-quarter revenue ($83.5M vs $63.3M, roughly 1.3× WESTAMERICA BANCORPORATION). WESTAMERICA BANCORPORATION runs the higher net margin — 43.9% vs 6.8%, a 37.1% gap on every dollar of revenue. On growth, BillionToOne, Inc. posted the faster year-over-year revenue change (117.4% vs -9.0%). WESTAMERICA BANCORPORATION produced more free cash flow last quarter ($119.7M vs $6.5M).

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.

Westamerica Bancorporation is a regional bank holding company headquartered in California, U.S. It operates via its wholly owned banking subsidiary to provide full-spectrum retail and commercial banking services, including deposit products, business and consumer loans, wealth management, and payment services, primarily serving individual consumers, SMEs and local institutional clients in northern and central California.

BLLN vs WABC — Head-to-Head

Bigger by revenue
BLLN
BLLN
1.3× larger
BLLN
$83.5M
$63.3M
WABC
Growing faster (revenue YoY)
BLLN
BLLN
+126.4% gap
BLLN
117.4%
-9.0%
WABC
Higher net margin
WABC
WABC
37.1% more per $
WABC
43.9%
6.8%
BLLN
More free cash flow
WABC
WABC
$113.2M more FCF
WABC
$119.7M
$6.5M
BLLN

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
BLLN
BLLN
WABC
WABC
Revenue
$83.5M
$63.3M
Net Profit
$5.7M
$27.8M
Gross Margin
69.9%
Operating Margin
11.5%
59.8%
Net Margin
6.8%
43.9%
Revenue YoY
117.4%
-9.0%
Net Profit YoY
138.3%
-12.3%
EPS (diluted)
$0.10
$1.12

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
WABC
WABC
Q4 25
$63.3M
Q3 25
$83.5M
$63.7M
Q2 25
$64.6M
Q1 25
$66.4M
Q4 24
$45.1M
$69.6M
Q3 24
$38.4M
$74.1M
Q2 24
$74.3M
Q1 24
$75.8M
Net Profit
BLLN
BLLN
WABC
WABC
Q4 25
$27.8M
Q3 25
$5.7M
$28.3M
Q2 25
$29.1M
Q1 25
$31.0M
Q4 24
$-11.5M
$31.7M
Q3 24
$-14.9M
$35.1M
Q2 24
$35.5M
Q1 24
$36.4M
Gross Margin
BLLN
BLLN
WABC
WABC
Q4 25
Q3 25
69.9%
Q2 25
Q1 25
Q4 24
57.1%
Q3 24
52.6%
Q2 24
Q1 24
Operating Margin
BLLN
BLLN
WABC
WABC
Q4 25
59.8%
Q3 25
11.5%
59.5%
Q2 25
60.5%
Q1 25
63.0%
Q4 24
17.0%
62.8%
Q3 24
-32.9%
64.5%
Q2 24
64.8%
Q1 24
65.2%
Net Margin
BLLN
BLLN
WABC
WABC
Q4 25
43.9%
Q3 25
6.8%
44.3%
Q2 25
45.0%
Q1 25
46.7%
Q4 24
-25.5%
45.6%
Q3 24
-38.8%
47.3%
Q2 24
47.8%
Q1 24
48.0%
EPS (diluted)
BLLN
BLLN
WABC
WABC
Q4 25
$1.12
Q3 25
$0.10
$1.12
Q2 25
$1.12
Q1 25
$1.16
Q4 24
$-1.13
$1.19
Q3 24
$-1.47
$1.31
Q2 24
$1.33
Q1 24
$1.37

Balance Sheet & Financial Strength

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

Metric
BLLN
BLLN
WABC
WABC
Cash + ST InvestmentsLiquidity on hand
$195.2M
Total DebtLower is stronger
$55.0M
Stockholders' EquityBook value
$-239.5M
$933.5M
Total Assets
$327.5M
$6.0B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BLLN
BLLN
WABC
WABC
Q4 25
Q3 25
$195.2M
Q2 25
Q1 25
Q4 24
$191.5M
Q3 24
Q2 24
Q1 24
Total Debt
BLLN
BLLN
WABC
WABC
Q4 25
Q3 25
$55.0M
Q2 25
Q1 25
Q4 24
$51.5M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
BLLN
BLLN
WABC
WABC
Q4 25
$933.5M
Q3 25
$-239.5M
$931.6M
Q2 25
$921.8M
Q1 25
$923.1M
Q4 24
$-251.7M
$890.0M
Q3 24
$-242.9M
$909.0M
Q2 24
$815.6M
Q1 24
$791.7M
Total Assets
BLLN
BLLN
WABC
WABC
Q4 25
$6.0B
Q3 25
$327.5M
$5.9B
Q2 25
$5.8B
Q1 25
$6.0B
Q4 24
$302.1M
$6.1B
Q3 24
$6.2B
Q2 24
$6.3B
Q1 24
$6.5B

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
WABC
WABC
Operating Cash FlowLast quarter
$13.8M
$121.9M
Free Cash FlowOCF − Capex
$6.5M
$119.7M
FCF MarginFCF / Revenue
7.7%
189.0%
Capex IntensityCapex / Revenue
8.8%
3.5%
Cash ConversionOCF / Net Profit
2.42×
4.38×
TTM Free Cash FlowTrailing 4 quarters
$213.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BLLN
BLLN
WABC
WABC
Q4 25
$121.9M
Q3 25
$13.8M
$29.4M
Q2 25
$23.5M
Q1 25
$42.4M
Q4 24
$141.6M
Q3 24
$40.6M
Q2 24
$19.0M
Q1 24
$52.2M
Free Cash Flow
BLLN
BLLN
WABC
WABC
Q4 25
$119.7M
Q3 25
$6.5M
$28.7M
Q2 25
$22.8M
Q1 25
$42.2M
Q4 24
$139.8M
Q3 24
$40.1M
Q2 24
$18.6M
Q1 24
$52.1M
FCF Margin
BLLN
BLLN
WABC
WABC
Q4 25
189.0%
Q3 25
7.7%
45.1%
Q2 25
35.3%
Q1 25
63.5%
Q4 24
201.0%
Q3 24
54.1%
Q2 24
25.0%
Q1 24
68.7%
Capex Intensity
BLLN
BLLN
WABC
WABC
Q4 25
3.5%
Q3 25
8.8%
1.1%
Q2 25
1.1%
Q1 25
0.3%
Q4 24
2.5%
Q3 24
0.7%
Q2 24
0.6%
Q1 24
0.2%
Cash Conversion
BLLN
BLLN
WABC
WABC
Q4 25
4.38×
Q3 25
2.42×
1.04×
Q2 25
0.81×
Q1 25
1.37×
Q4 24
4.47×
Q3 24
1.16×
Q2 24
0.54×
Q1 24
1.43×

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%

WABC
WABC

Segment breakdown not available.

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