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BillionToOne (BLLN, Care providers & labs) Stock Valuation & Fair Value

Mixed on our tests

BillionToOne (BLLN, Care providers & labs) trades at a current P/E of 167.7, about 71% below its historical normal valuation, with a forward growth estimate of 56.0% and a PEG of 2.99. Priced at its historical normal P/E of 584.6 on the same blended earnings, the 2026-11-06 close of $113.94 corresponds to about $397 a share. This is a valuation reference, not a price target.

How to read these numbers: the PEG ratio and current P/E versus normal P/E.

DATA AS OF 2026-11-07
Current P/E
167.7
Normal P/E
584.6
PEG
2.99
Fwd growth
56.0%
Div yield
0.0%
RSI (14)
59.3
Neutral
Technical context
  • Price $113.94 at the Nov 6 close, 6.6% above the 20-day average ($106.88) and 8.1% above the 50-day ($105.37).
  • RSI (14) at 59.3.
  • 52-week range $64.03 to $149.97: the price is 24.0% below the high and 77.9% above the low.

The Street vs SeerForecast

Wall Street's mean price target for BLLN is $129.00 across 7 analysts, 13.2% above the current price. The average analyst rating is Strong Buy. Our SeerForecast read of the same stock, formed without analyst targets: mixed on our tests. When the two disagree, start your digging there.

Valuation flags

Verdict history

tickerseer's rating moved from weak on forward returns (2026-07-31) to mixed on our tests (2026-11-02). New rating rules took effect in the week of 2026-09-28, and this rating moved across that change, so part of the move may come from the new rules rather than the company.

Current P/E and rating by weekCurrent P/E moved from 227.3 to 166.8 between 2026-07-31 and 2026-10-30, against a normal P/E of 584.6, with 7 rating changes over 14 recorded weeks.2026-07-31: P/E 227.3, Weak on forward returns, recalculated for the week of 2026-07-312026-07-31: P/E 224.9, Weak on forward returns, recorded live 2026-08-032026-08-07: P/E 224.9, Weak on forward returns, recalculated for the week of 2026-08-072026-08-07: P/E 176.2, Favorable on our tests, recorded live 2026-08-102026-08-14: P/E 176.2, Favorable on our tests, recalculated for the week of 2026-08-142026-08-14: P/E 227.3, Weak on forward returns, recorded live 2026-08-172026-08-21: P/E 227.3, Weak on forward returns, recalculated for the week of 2026-08-212026-08-21: P/E 171.2, Mixed on our tests, recorded live 2026-08-242026-08-27: P/E 171.2, Mixed on our tests, recalculated for the week of 2026-08-272026-08-28: P/E 171.2, Mixed on our tests, recalculated for the week of 2026-08-282026-08-28: P/E 171.2, Mixed on our tests, recalculated for the week of 2026-08-302026-08-28: P/E 164.3, Mixed on our tests, recorded live 2026-08-312026-09-04: P/E 164.3, Mixed on our tests, recalculated for the week of 2026-09-052026-09-04: P/E 171.4, Mixed on our tests, recorded live 2026-09-072026-09-11: P/E 171.4, Mixed on our tests, recalculated for the week of 2026-09-122026-09-11: P/E 164.8, Mixed on our tests, recorded live 2026-09-142026-09-18: P/E 164.8, Mixed on our tests, recalculated for the week of 2026-09-192026-09-18: P/E 173.1, Mixed on our tests, recorded live 2026-09-212026-09-25: P/E 173.1, Mixed on our tests, recalculated for the week of 2026-09-262026-09-25: P/E 197.1, Weak on forward returns, recorded live 2026-09-282026-10-02: P/E 197.1, Weak on forward returns, recalculated for the week of 2026-10-032026-10-02: P/E 168.2, Weak on forward returns, recorded live 2026-10-052026-10-09: P/E 168.2, Weak on forward returns, recalculated for the week of 2026-10-102026-10-09: P/E 152.7, Mixed on our tests, recorded live 2026-10-122026-10-16: P/E 152.7, Mixed on our tests, recalculated for the week of 2026-10-172026-10-16: P/E 149.9, Mixed on our tests, recorded live 2026-10-192026-10-23: P/E 161.5, Weak on forward returns, recorded live 2026-10-262026-10-30: P/E 161.5, Mixed on our tests, recalculated for the week of 2026-10-312026-10-30: P/E 166.8, Mixed on our tests, recorded live 2026-11-02200.0400.0Jul 31Aug 23Sep 15Oct 7Oct 30Normal P/E 584.6
Favorable on our testsMixed on our testsWeak on forward returns

Not every point was recorded live. Points marked recalculated are worked out from the metrics tickerseer archived that week.

Selected weeks: the first, the latest, every week the rating moved, and the cheapest and dearest.

WeekCurrent P/EPremium to normal P/ERating
2026-07-31P/E 227.3-61%Weak on forward returns (recalculated)
2026-08-10P/E 176.2-70%Favorable on our tests
2026-08-17P/E 227.3-61%Weak on forward returns
2026-08-24P/E 171.2-71%Mixed on our tests
2026-09-28P/E 197.1-66%Weak on forward returns (across a rating rules change)
2026-10-12P/E 152.7-74%Mixed on our tests (across a rating rules change)
2026-10-19P/E 149.9-74%Mixed on our tests
2026-10-26P/E 161.5-72%Weak on forward returns
2026-10-31P/E 161.5-72%Mixed on our tests (recalculated) (across a rating rules change)
2026-11-02P/E 166.8-71%Mixed on our tests ← now
Show all 29 readings
WeekCurrent P/EPremium to normal P/ERating
2026-07-31P/E 227.3-61%Weak on forward returns (recalculated)
2026-08-03P/E 224.9-62%Weak on forward returns
2026-08-07P/E 224.9-62%Weak on forward returns (recalculated)
2026-08-10P/E 176.2-70%Favorable on our tests
2026-08-14P/E 176.2-70%Favorable on our tests (recalculated)
2026-08-17P/E 227.3-61%Weak on forward returns
2026-08-21P/E 227.3-61%Weak on forward returns (recalculated)
2026-08-24P/E 171.2-71%Mixed on our tests
2026-08-27P/E 171.2-71%Mixed on our tests (recalculated)
2026-08-28P/E 171.2-71%Mixed on our tests (recalculated)
2026-08-30P/E 171.2-71%Mixed on our tests (recalculated)
2026-08-31P/E 164.3-72%Mixed on our tests
2026-09-05P/E 164.3-72%Mixed on our tests (recalculated)
2026-09-07P/E 171.4-71%Mixed on our tests
2026-09-12P/E 171.4-71%Mixed on our tests (recalculated)
2026-09-14P/E 164.8-72%Mixed on our tests
2026-09-19P/E 164.8-72%Mixed on our tests (recalculated)
2026-09-21P/E 173.1-70%Mixed on our tests
2026-09-26P/E 173.1-70%Mixed on our tests (recalculated)
2026-09-28P/E 197.1-66%Weak on forward returns (across a rating rules change)
2026-10-03P/E 197.1-66%Weak on forward returns (recalculated)
2026-10-05P/E 168.2-71%Weak on forward returns
2026-10-10P/E 168.2-71%Weak on forward returns (recalculated)
2026-10-12P/E 152.7-74%Mixed on our tests (across a rating rules change)
2026-10-17P/E 152.7-74%Mixed on our tests (recalculated)
2026-10-19P/E 149.9-74%Mixed on our tests
2026-10-26P/E 161.5-72%Weak on forward returns
2026-10-31P/E 161.5-72%Mixed on our tests (recalculated) (across a rating rules change)
2026-11-02P/E 166.8-71%Mixed on our tests ← now

Frequently asked questions

Is BillionToOne stock overvalued?

At a current P/E of 167.7 versus its historical normal P/E of 584.6, BillionToOne trades about 71% below its typical valuation, with a PEG of 2.99 on 56.0% forward growth. tickerseer currently rates it mixed on our tests.

What is BillionToOne's fair value and PEG?

BillionToOne trades at a current P/E of 167.7 against a historical normal P/E of 584.6, a PEG of 2.99, and a forward growth estimate of 56.0%. Priced at its historical normal P/E of 584.6 on the same blended earnings, the 2026-11-06 close of $113.94 corresponds to about $397 a share. This is a valuation reference, not a price target.

Has tickerseer's rating of BillionToOne changed?

tickerseer's rating moved from weak on forward returns (2026-07-31) to mixed on our tests (2026-11-02). New rating rules took effect in the week of 2026-09-28, and this rating moved across that change, so part of the move may come from the new rules rather than the company.

What is the analyst price target for BillionToOne?

The mean Wall Street price target for BillionToOne is $129.00 across 7 analysts, 13.2% above the current price. tickerseer's SeerForecast verdict is formed independently of analyst targets.

Industry: Care providers & labs. Create a free account to see the full analysis: the SeerAI score, its five quality sub-scores, valuation history, and an AI research note where we have one. Options setups and metric history are part of the paid plans.

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