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Side-by-side financial comparison of BillionToOne, Inc. (BLLN) and UNITED STATES LIME & MINERALS INC (USLM). Click either name above to swap in a different company.

UNITED STATES LIME & MINERALS INC is the larger business by last-quarter revenue ($87.9M vs $83.5M, roughly 1.1× BillionToOne, Inc.). UNITED STATES LIME & MINERALS INC runs the higher net margin — 34.7% vs 6.8%, a 27.9% gap on every dollar of revenue. On growth, BillionToOne, Inc. posted the faster year-over-year revenue change (117.4% vs 9.8%). UNITED STATES LIME & MINERALS INC produced more free cash flow last quarter ($25.7M 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.

United States Lime & Minerals Inc is a leading US-based natural resources enterprise that produces high-calcium lime, dolomitic lime, limestone and related mineral products. Its core client segments cover infrastructure construction, steel manufacturing, agricultural soil amendment, environmental emission control and industrial processing, serving customers across North America.

BLLN vs USLM — Head-to-Head

Bigger by revenue
USLM
USLM
1.1× larger
USLM
$87.9M
$83.5M
BLLN
Growing faster (revenue YoY)
BLLN
BLLN
+107.6% gap
BLLN
117.4%
9.8%
USLM
Higher net margin
USLM
USLM
27.9% more per $
USLM
34.7%
6.8%
BLLN
More free cash flow
USLM
USLM
$19.2M more FCF
USLM
$25.7M
$6.5M
BLLN

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
BLLN
BLLN
USLM
USLM
Revenue
$83.5M
$87.9M
Net Profit
$5.7M
$30.5M
Gross Margin
69.9%
48.0%
Operating Margin
11.5%
41.0%
Net Margin
6.8%
34.7%
Revenue YoY
117.4%
9.8%
Net Profit YoY
138.3%
13.2%
EPS (diluted)
$0.10
$1.06

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
USLM
USLM
Q4 25
$87.9M
Q3 25
$83.5M
$102.0M
Q2 25
$91.5M
Q1 25
$91.3M
Q4 24
$80.1M
Q3 24
$38.4M
$89.4M
Q2 24
$76.5M
Q1 24
$71.7M
Net Profit
BLLN
BLLN
USLM
USLM
Q4 25
$30.5M
Q3 25
$5.7M
$38.8M
Q2 25
$30.8M
Q1 25
$34.1M
Q4 24
$27.0M
Q3 24
$-14.9M
$33.4M
Q2 24
$26.1M
Q1 24
$22.4M
Gross Margin
BLLN
BLLN
USLM
USLM
Q4 25
48.0%
Q3 25
69.9%
51.2%
Q2 25
45.8%
Q1 25
50.6%
Q4 24
44.3%
Q3 24
52.6%
48.2%
Q2 24
45.5%
Q1 24
42.7%
Operating Margin
BLLN
BLLN
USLM
USLM
Q4 25
41.0%
Q3 25
11.5%
45.3%
Q2 25
39.0%
Q1 25
43.7%
Q4 24
38.8%
Q3 24
-32.9%
42.6%
Q2 24
39.1%
Q1 24
35.9%
Net Margin
BLLN
BLLN
USLM
USLM
Q4 25
34.7%
Q3 25
6.8%
38.0%
Q2 25
33.7%
Q1 25
37.4%
Q4 24
33.7%
Q3 24
-38.8%
37.3%
Q2 24
34.0%
Q1 24
31.3%
EPS (diluted)
BLLN
BLLN
USLM
USLM
Q4 25
$1.06
Q3 25
$0.10
$1.35
Q2 25
$1.07
Q1 25
$1.19
Q4 24
$-2.20
Q3 24
$-1.47
$1.16
Q2 24
$0.91
Q1 24
$3.92

Balance Sheet & Financial Strength

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

Metric
BLLN
BLLN
USLM
USLM
Cash + ST InvestmentsLiquidity on hand
$195.2M
$371.1M
Total DebtLower is stronger
$55.0M
$0
Stockholders' EquityBook value
$-239.5M
$630.8M
Total Assets
$327.5M
$681.0M
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BLLN
BLLN
USLM
USLM
Q4 25
$371.1M
Q3 25
$195.2M
$349.5M
Q2 25
$319.9M
Q1 25
$300.6M
Q4 24
$278.0M
Q3 24
$255.0M
Q2 24
$222.5M
Q1 24
$207.0M
Total Debt
BLLN
BLLN
USLM
USLM
Q4 25
$0
Q3 25
$55.0M
$0
Q2 25
$0
Q1 25
$0
Q4 24
$0
Q3 24
$0
Q2 24
$0
Q1 24
$0
Stockholders' Equity
BLLN
BLLN
USLM
USLM
Q4 25
$630.8M
Q3 25
$-239.5M
$602.3M
Q2 25
$563.3M
Q1 25
$532.2M
Q4 24
$497.7M
Q3 24
$-242.9M
$474.2M
Q2 24
$441.1M
Q1 24
$415.3M
Total Assets
BLLN
BLLN
USLM
USLM
Q4 25
$681.0M
Q3 25
$327.5M
$652.8M
Q2 25
$607.4M
Q1 25
$585.3M
Q4 24
$543.2M
Q3 24
$521.8M
Q2 24
$484.2M
Q1 24
$464.0M
Debt / Equity
BLLN
BLLN
USLM
USLM
Q4 25
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
0.00×
Q3 24
0.00×
Q2 24
0.00×
Q1 24
0.00×

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
USLM
USLM
Operating Cash FlowLast quarter
$13.8M
$45.6M
Free Cash FlowOCF − Capex
$6.5M
$25.7M
FCF MarginFCF / Revenue
7.7%
29.2%
Capex IntensityCapex / Revenue
8.8%
22.6%
Cash ConversionOCF / Net Profit
2.42×
1.49×
TTM Free Cash FlowTrailing 4 quarters
$102.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BLLN
BLLN
USLM
USLM
Q4 25
$45.6M
Q3 25
$13.8M
$45.9M
Q2 25
$34.0M
Q1 25
$39.4M
Q4 24
$38.6M
Q3 24
$39.0M
Q2 24
$21.2M
Q1 24
$27.2M
Free Cash Flow
BLLN
BLLN
USLM
USLM
Q4 25
$25.7M
Q3 25
$6.5M
$31.3M
Q2 25
$20.8M
Q1 25
$24.6M
Q4 24
$27.6M
Q3 24
$33.9M
Q2 24
$16.8M
Q1 24
$20.3M
FCF Margin
BLLN
BLLN
USLM
USLM
Q4 25
29.2%
Q3 25
7.7%
30.7%
Q2 25
22.7%
Q1 25
26.9%
Q4 24
34.4%
Q3 24
37.9%
Q2 24
21.9%
Q1 24
28.4%
Capex Intensity
BLLN
BLLN
USLM
USLM
Q4 25
22.6%
Q3 25
8.8%
14.4%
Q2 25
14.5%
Q1 25
16.3%
Q4 24
13.8%
Q3 24
5.8%
Q2 24
5.7%
Q1 24
9.5%
Cash Conversion
BLLN
BLLN
USLM
USLM
Q4 25
1.49×
Q3 25
2.42×
1.18×
Q2 25
1.10×
Q1 25
1.16×
Q4 24
1.43×
Q3 24
1.17×
Q2 24
0.81×
Q1 24
1.21×

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%

USLM
USLM

Segment breakdown not available.

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