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BLLN

BillionToOne, Inc.

Radar Caídas · 51/100 · Ready to research

51/100

1-year price history

Source: Yahoo Finance
- Calculating change...

The chart uses daily closes adjusted by the available provider. There may be delays, gaps or differences versus the official source.

Sources

Links you can open and check yourself, most reliable first. Internal data-provider fetches are not listed here.

Formulario 4: compraventa de acciones por un directivo Formulario 144: aviso de venta de acciones de un directivo Formulario 10-Q: cuentas del trimestre Formulario 8-K: hecho relevante comunicado a la SEC filing event

Company

BillionToOne, Inc., a precision diagnostics company, quantifies biology to create molecular diagnostics. The company provides molecular counting platform, which is designed to detect and measure DNA molecules at the single-count level to help enhance disease detection.

What happened and why it was detected

What happened

The stock fell 35.6% and the most likely cause is this: Official filing with the SEC dated 5 August 2026.

Why we found it interesting

  • Confirmed: we know which news caused the drop. The news was published before the price started falling, so the timing lines up.
  • We could not measure the overshoot, because there is no public figure for this catalyst's real damage.
  • Out of our 10 checks, 5 come out clearly in favour.
  • Final score: 51 out of 100.

What could go wrong

  • Multiple Form 144s (notices of sale) were filed between August 3 and 5, which may increase the supply of shares in the short term.
  • The valuation indicated by the evidence is high: estimated forward P/E ratio of 130.93 based on available data.
  • Trading volume during the session in which the price fell was high (3,735,778 shares), which may indicate continued selling pressure in the coming days.

What would make us drop it

  • The company announces in an official filing within 0–30 days a downward revision of its annual forecasts (the forecasts published by the company) compared to the previous announcement.
  • The 8-K or 10-Q filed on August 5, 2026, discloses a material charge or undisclosed financial contingency that significantly reduces reported net cash.
  • The SEC announces a formal investigation into accounting or business practices related to recent announcements.

What the confidence percentage means

This 80% is the confidence the model states about its own analysis after reviewing the sources.

Verified data: 7 of 10 checks have real data.

Detection analysis

What the market is pricing in

The market is pricing in an immediate and significant decline stemming from the earnings call and the sales activity reported on Form 144. The stock fell ~38.9% during the August 6 trading session and -35.6% over 48 hours, indicating that investors are reacting to the news with a short-term decline in value that implies a lasting impact on the business.

Does the drop match the estimated impact?

!! Clearly exaggerated

A 38.89% drop in price in one day despite the absence of any financial charge or contract loss disclosed in the filings dated August 5, 2026. Objective data: reported revenue up 64% (according to call summaries), total reported cash of $537,450k and net cash of $393,263k, positive operating cash flow of $37.4M, and positive free cash flow based on reported data. There is no evidence of a fine, bankruptcy, or loss of a major client; therefore, the magnitude of the decline is not supported by a quantified economic impact in the available official documents.

Overreaction gap

Stock drop
38.89%
Estimated economic impact
3.00%
Gap
35.89pp

The quantifiable direct economic impact of the information disclosed in recent earnings reports and filings is estimated to be low (with no reported monetary charges or loss of contracts), so the drop of ~39 percentage points far exceeds that estimated impact, indicating a strong overreaction.

Possible scenarios (no probability assigned)

Favourable scenario

Management confirms in official communications (filings or press releases) that it is maintaining or improving the forecasts published by the company and explains the trading activity of insiders; furthermore, net buying by institutional investors or executives is observed in the days that follow.

Neutral scenario

There are no additional charges or downward revisions to forecasts over the next 1–4 weeks; the company releases details clarifying the transaction, and the reported sales are absorbed by the market.

Adverse scenario

Additional negative information emerges in filings (charges, regulatory investigations, or downward revisions to forecasts), or selling pressure from Form 144 filings results in a sustained increase in supply.

What would rule out this hypothesis

  • Official filings show a reduction in the forecasts the company will publish over the next 30 days.
  • An 8-K or 10-Q filing discloses a material charge or financial contingency that had not been previously disclosed.
  • The SEC announces a formal investigation into accounting or business practices related to recent announcements.

Factors that could support a recovery

  1. Public confirmation of the guidance that maintains or clarifies the published forecasts

    Horizon: 1–4 weeks

  2. Net public purchases by executives or institutional purchases confirmed in subsequent filings (SEC Form 4)

    Horizon: 1–4 weeks

  3. Leading analysts maintain or reiterate their "buy" recommendations and publish explanatory notes

    Horizon: 1–3 weeks

Comparable historical cases

No verifiable comparable cases were saved for this page.

Where the score comes from

The score is computed by Python code from objective data, not by the AI model, and it does not change after the qualitative research.

Raw score 50.8
Data coverage 82.5% Points not measurable today: 17.5 out of 100.
Coverage-adjusted score 61.5 The adjusted figure does not replace the real score or the ranking. It only visually corrects how much of the 100 points was actually measurable, so missing data is not confused with weak quality.
Fixable problem 13.8 / 25
How much of the problem behind the drop looks fixable
Company strength 20.0 / 20
Revenue, margins, cash and debt before the drop
Overreaction size 0.0 / 15
How much it fell beyond the estimated real damage
Company response 0.0 / 15
Whether management responded publicly after the drop
Chart support 0.0 / 10
Whether the price holds above its 50-day average
Institutional money 0.0 / 10
Large-fund buying: no reliably up-to-date source exists
Bonus points +17.0
Insider buying, capitulation volume, analysts keeping their rating
Penalty -0.0
Deteriorating sector and negative signals detected
out of 100 50.8

Indicators

Calculated 2026-08-06T20:30:02.278387

Values used by this framework's Python scoring engine at detection time. Only indicators the data source could confirm are shown.

Precio

Variación en 1 día -38.89%
Variación en 5 días -34.34%
Variación en 1 mes -24.00%
Variación en 3 meses +12.59%
Acciones negociadas ese día 3,735,778
Volumen medio de 10 días 582,390 Sirve para comparar: si el volumen del día lo dispara, algo ha pasado

Tamaño

Valor en bolsa 4.22 B$ Lo que cuesta comprar todas las acciones de la empresa
Valor de la empresa entera 6.50 B$ Valor en bolsa más la deuda y menos la caja: lo que costaria comprarla y saldar deudas

Valoración

Veces beneficio esperado 130.93x Lo mismo, pero con el beneficio que los analistas esperan el año que viene
Veces beneficio operativo (EV/EBITDA) 151.18x Cuántas veces el beneficio operativo anual paga el mercado por la empresa entera
Veces caja libre (EV/FCF) 389.09x Lo mismo, pero contra el dinero que la empresa genera de verdad

Negocio

Crecimiento de ingresos 83.8%
Margen bruto 70.4% De cada 100 dolares vendidos, lo que queda tras el coste directo del producto
Margen operativo 16.5% Lo que queda de cada 100 dolares vendidos tras todos los gastos del negocio
Caja libre generada (12 meses) 16.72 M$ Dinero que sobra tras pagar gastos e inversiones. En negativo, la empresa quema caja
Cuánto beneficio operativo se convierte en caja 0.39x Cerca de 1 significa que el beneficio contable acaba siendo dinero real

Deuda

Caja disponible 537.45 M$
Deuda total 144.19 M$
Caja neta 393.26 M$ Caja menos deuda. En positivo, la empresa tiene más dinero que deudas
Años de beneficio operativo para pagar la deuda -9.14x Por encima de 3 suele considerarse una deuda exigente
Deuda sobre fondos propios 28.5% Cuánta deuda usa por cada 100 dolares de capital de los accionistas

Accionistas

Acciones emitidas 41,442,834
Acciones que cotizan libremente 24,094,734 Cuanto menor sea, más bruscos suelen ser los movimientos de precio
Parte en manos de directivos 38.1% Si los que dirigen la empresa tienen mucho invertido, se juegan lo mismo que tu
Apuestas bajistas sobre el free float 9.6% Porcentaje de acciones prestadas para apostar a la baja

Why some numbers are coloured and others stay grey

Colour repeats what the sign already says, at three intensities depending on how far the value is from zero. It is never the only signal.

  • light
  • medium
  • strong
  • light
  • medium
  • strong
  • Price change: light up to 2%, medium up to 10%, strong above that.
  • Margins and growth: light up to 10%, medium up to 35%, strong above that.

Everything whose sign is not good or bad on its own stays grey: valuation (a low P/E can be a bargain or a trap, and almost every company here has just fallen), debt, size, insider ownership and short interest. Those are shown as-is, without the site taking a view.

Analysis of the drop

The ~38% drop following the earnings release and the earnings call on August 5 appears to be an overreaction by the market: the company reported 64% revenue growth and shows a substantial positive net cash balance according to its financial statements, with no quantified charges in the filings dated August 5, 2026.

Catalyst

Release of second-quarter 2026 results and earnings call on August 5, 2026, followed by media coverage that questioned the valuation and sales activity/sales orders (Form 144) reported in the filings from August 3–5. | Next month

Risks

  • Multiple Form 144s (notices of sale) were filed between August 3 and 5, which may increase the supply of shares in the short term.
  • The valuation indicated by the evidence is high: estimated forward P/E ratio of 130.93 based on available data.
  • Trading volume during the session in which the price fell was high (3,735,778 shares), which may indicate continued selling pressure in the coming days.

What would invalidate this analysis

  • The company announces in an official filing within 0–30 days a downward revision of its annual forecasts (the forecasts published by the company) compared to the previous announcement.
  • The 8-K or 10-Q filed on August 5, 2026, discloses a material charge or undisclosed financial contingency that significantly reduces reported net cash.
  • The SEC announces a formal investigation into accounting or business practices related to recent announcements.

Development spotted after the drop

Can BillionToOne (BLLN) Justify Its Price On Earnings And Reaffirmed 2026 Guidance? · 6 August 2026

We don't judge whether it's good or bad news: compare it against the real return since detection in the table below.

Tracking

Horizon Date Price Return Source
Current 2026-09-06 12:00:07.851637 99.39 8.45% yahoo
24h 2026-08-07 21:00:02.585599 93.39 1.90% yahoo
48h 2026-08-08 21:00:02.352803 93.39 1.90% yahoo
1 week 2026-08-13 21:00:01.920490 94.04 2.61% yahoo
1 month 2026-09-05 21:00:05.156857 99.39 8.45% yahoo

Keep researching

Daily report for August 6, 2026