The company combines exceptional top-line growth of 84% year-over-year with a wide economic moat and a near-perfect balance sheet quality score, but with the stock sitting just below its near-term price target at a forward multiple above 100x, the current setup does not offer a compelling new entry.
Thesis pillars
- Wide Moat Elite Quality Score→Stable
- Industry Leading Revenue Growth→Stable
- Expensive Valuation At Price Target↓Deteriorating
- +1 more pillar — see the Why tab for full reasoning
Pillars as of Jul 3, 2026, based on the 10-K filed Mar 11, 2026
BillionToOne, Inc. (BLLN) Stock Analysis
Healthcare · Diagnostics & Research
Hold if already holding. Not a fresh buy at $114.00, but acceptable to hold if already in. Reasons: Concentration risk — Customer: third-party payors; Analyst target reached - limited upside remaining.
BillionToOne develops molecular diagnostic tests using its single-molecule sequencing platform, commercializing the UNITY prenatal test portfolio (launched 2019) and Northstar oncology tests for therapy selection and response monitoring (launched 2023). Third-party... Read more
Hold if already holding. Not a fresh buy at $114.00, but acceptable to hold if already in. Reasons: Concentration risk — Customer: third-party payors; Analyst target reached - limited upside remaining. Chart setup: No clear chart pattern; technical signals are mixed. Maintain position. Not compelling to add more. Score 5.9/10, moderate confidence.
Passes 5/8 gates (positive momentum, no SEC red flags, news events none recent, semi cycle peak clear, materials cycle peak clear). Fails on favorable risk/reward ratio and clean insider activity and earnings proximity 6d<=7d. Suitability: moderate.
About BillionToOne, Inc.
About BillionToOne, Inc.
BillionToOne launched UNITY Fetal Risk Screen in 2019—the first NIPT to assess fetal risk for recessive conditions such as sickle cell disease and cystic fibrosis from a maternal blood draw without requiring a paternal sample—and entered oncology in January 2023 with Northstar Select, an ultrasensitive liquid biopsy for stage III/IV cancer therapy selection. Third-party payors represented more than 90% of the company's revenue in 2025 and 2024. The company was founded in 2016 and received its first commercial test sample in 2019.
BillionToOne earns revenue when third-party payors reimburse for molecular diagnostic tests ordered by obstetricians and oncologists. The UNITY prenatal portfolio covers recessive conditions, chromosomal aneuploidies, 22q11.2 microdeletion, fetal RhD status, and red blood cell antigens; UNITY Fetal Antigen NIPT is described as the only commercially available test for fetal antigen screening in the United States. The Northstar oncology portfolio includes Northstar Select for therapy selection and Northstar Response for methylation-based tumor burden monitoring; more than 95% of oncologists ordering the company's tests in 2025 used both products in tandem. Reimbursement coverage is uneven: Northstar Select is broadly covered by Medicare but narrowly by commercial insurers (limited to specific indications such as lung cancer), while Northstar Response is covered by neither Medicare nor most commercial insurers. Prenatal tests are processed at a Union City laboratory enrolled as a Medicaid provider in over 40 states.
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The Centers for Medicare & Medicaid Services (CMS) sets reimbursement rates annually through the Clinical Laboratory Fee Schedule (CLFS); PAMA-driven rate reductions—suspended since 2021 but the company notes the reporting requirement has been delayed most recently until 2026—may reduce Medicare reimbursement when eventually implemented. Because many commercial insurers and state Medicaid plans set rates as a percentage of Medicare CLFS amounts, a CMS rate cut would have cascading effects across payors. Approximately half of all U.S. births involve Medicaid beneficiaries, making state Medicaid coverage decisions particularly load-bearing for the prenatal franchise revenue base.
See also: Healthcare · Diagnostics & Research
From BillionToOne, Inc.'s most recent 10-K filing, extracted June 9, 2026.
Recent developments
updated 2026-10-29Recent Developments — BillionToOne, Inc.
Latest news
- NEWS Billiontoone (NASDAQ:BLLN) Stock Price Down 4.6% - Here's What Happened - MarketBeat — MarketBeat negative
- NEWS Billiontoone (NASDAQ:BLLN) Stock Price Down 4.6% - Here's What Happened - marketbeat.com — marketbeat.com negative
- NEWS BillionToOne Inc. (BLLN) Q1 2026 Earnings: Enormous EPS Beat Sends Stock Slightly Lower - Return On Equity - dars.gov.et — dars.gov.et positive
- NEWS BillionToOne Inc. (BLLN) Q1 2026 Earnings: Enormous EPS Beat Sends Stock Slightly Lower - Estimate Dispersion - dars.gov — dars.gov.et positive
- NEWS BillionToOne Inc. (BLLN) Q1 2026 Earnings: Enormous EPS Beat Sends Stock Slightly Lower - Profit Guidance Range - dars.g — dars.gov.et positive
Generated 2026-10-29T11:14:31Z.
Upcoming dated catalysts
Thesis
Key Metrics
Quality Signals
Options Flow
Concentration Risks(10-K Item 1A)
- HIGHCustomerthird-party payors10-K Item 1A: 'Reimbursement from third-party payors for our tests represented more than 90% of our revenue for each of the years ended December 31, 2025 and 2024'
Model-generated analysis — not investment advice. Not a registered investment advisor. Past performance does not guarantee future results. How we score · Editorial policy
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Rating Breakdown
2 floor-breakers·1 ceiling hit
Technicals below the gate floor. Component breakdown shows what dragged the score down.static
Priced at a premium — multiples above sector norms. Needs delivery on growth + margins to justify.static
Price Targets
Position Sizing
Risk Alerts
Earnings
Verdict History
Frequently Asked Questions
Hold if already holding. Not a fresh buy at $114.00, but acceptable to hold if already in. Reasons: Concentration risk — Customer: third-party payors; Analyst target reached - limited upside remaining. Chart setup: No clear chart pattern; technical signals are mixed. Maintain position. Not compelling to add more. Analyst target $112.23 reached (−1.6%), stop $106.02 (−7.5%), A.R:R -0.1:1. Score 5.9/10, moderate confidence.
Analyst target $112.23 reached (−1.6% from $114.00); no take-profit level is published. Analyst target $112.23 reached (−1.6%), stop $106.02 (−7.5%), A.R:R -0.1:1. Stop-loss: $106.02.
Concentration risk — Customer: third-party payors; Analyst target reached - limited upside remaining; Earnings in 6 days (event risk).
BillionToOne, Inc. trades at a P/E of 181.0 (forward 76.8). TrendMatrix value score: 3.1/10. Verdict: Hold.
15 analysts cover BLLN with a consensus score of 4.2/5. Average price target: $129.
What does BillionToOne, Inc. do?BillionToOne develops molecular diagnostic tests using its single-molecule sequencing platform, commercializing the...
BillionToOne develops molecular diagnostic tests using its single-molecule sequencing platform, commercializing the UNITY prenatal test portfolio (launched 2019) and Northstar oncology tests for therapy selection and response monitoring (launched 2023). Third-party payors—including Medicare, Medicaid, and commercial insurers—represented more than 90% of revenue in 2025 and 2024. The company describes UNITY Fetal Antigen NIPT as the only commercially available test for fetal antigen screening in the United States.