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STOCK COMPARISON

BillionToOne, Inc. Class A Common Stock vs Thermo Fisher Scientific: Fair Value & Quality

Both stocks run through our valuation models. Here is how BillionToOne, Inc. Class A Common Stock (BLLN) and Thermo Fisher Scientific (TMO) compare, as of Sep 14, 2026.

As of Sep 14, 2026, Fair Value Calculator sees Thermo Fisher Scientific as the more attractively valued of the two: BillionToOne, Inc. Class A Common Stock trades at $98.77 versus a fair value of $16.67 (-83%), while Thermo Fisher Scientific trades at $610 versus $616 (+1%).
BillionToOne, Inc. Class A Common Stock
BLLN · USD · Health Care
-83%
upside to fair value
overvalued
Price$98.77
Fair Value$16.67
Quality68/100
Thermo Fisher Scientific
TMO · USD · Health Care
+1%
upside to fair value
fairly valued
Price$610
Fair Value$616
Quality62/100
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Head-to-head numbers

Green value = the better side for that row (for valuation multiples: lower = cheaper).

BillionToOne, Inc. Class A Common StockThermo Fisher Scientific
Valuation
236.9×P/E (TTM)29.5×
16.91×P/S (TTM)4.41×
12.48×P/B3.74×
EV/EBITDA20.0×
PEG1.74×
−83.1%Fair value upside+1.1%
Dividend yield0.3%
Dividend per share$1.76
Profitability
16%Operating margin18%
EBIT margin trend (5Y)0.74×
9%Return on equity14%
4%Return on assets5%
Growth
84%Revenue growth (YoY)6%
Avg. growth/yr (3Y)-0.3%
Avg. growth/yr (5Y)6.7%
Value creation/yr+2.6%
Balance & size
168.7×Interest coverage (EBIT/interest)5.7×
0.12×Debt / equity0.67×
$6BMarket cap$199B
healthyGrowth qualityhealthy

Thermo Fisher Scientific leads: 2 to 6 metric wins.

Dash = not meaningfully computable, for example with negative equity.

Quality in detail

The quality score, broken down into the same factor families as on the stock page, 0 to 100 per family.

BillionToOne, Inc. Class A Common Stockof which business quality 66 · market factors 42 Thermo Fisher Scientificof which business quality 60 · market factors 73
ProfitabilityMargins and returns on capital today
31
43
Quality GrowthAre margins and returns improving?
88
31
CashflowEarnings quality: real cash, not paper profit
55
62
Fin. StrengthBalance sheet, leverage, solvency risk
88
60
InvestmentDisciplined investing over empire-building
95
79
Low VolatilityCalm price path (market factor)
0
69
MomentumPrice trend over the last 3–12 months (market factor)
75
74
52W MomentumDistance to the 52-week high (market factor)
36
76
Net IssuanceShare count: buybacks or dilution?
56
97

What the models say

How far the median fair value (base case) per model family sits from the current price, in percent. The amount in the currency of the trading venue is shown underneath.

above the price, more than 15% above close to the price, 85% to 115% of the price below the price, more than 15% below

Model familyBillionToOne, Inc. Class A Common StockPrice $98.77Thermo Fisher ScientificPrice $610
DCF Models-80%below the price$19.78-42%below the price$354
Earnings-Based-92%below the price$7.42-67%below the price$203
Multiples-90%below the price$9.79-49%below the price$308
Asset-Based-92%below the price$7.76-84%below the price$96.29
Growth DCF-79%below the price$20.36-53%below the price$288
Economic Profit-88%below the price$12.14-74%below the price$159
Growth Earnings-92%below the price$8.36-44%below the price$341
Minimum-92%below the price$7.42-84%below the price$96.29
Maximum-79%below the price$20.36-42%below the price$354
Median-90%below the price$9.79-53%below the price$288
Geometric mean-89%below the price$11.26-62%below the price$229

Minimum, maximum, median and geometric mean refer to the family values in this table. Geometric because deviations are ratios: half the price and twice the price average to 100%, not 125%.

BillionToOne, Inc. Class A Common Stock: 24 of 24 models see the stock below the current price.

Thermo Fisher Scientific: 24 of 24 models see the stock below the current price.

Scenario ranges

From our cautious bear scenario to the optimistic bull scenario. The white tick is the current price (value above it), the green tick the fair value (value below it): if the price sits left of the fair value, there is room to rise.

BillionToOne, Inc. Class A Common Stock
Price $98.77
Fair Value $16.67
Bear $14.62Bull $19.32
Thermo Fisher Scientific
Price $610
Fair Value $616
Bear $342Bull $887

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Ranked within their sector

Where each stock sits within its sector peer group. Band = middle 50% of peers, tick = median, dot = this stock.

BillionToOne, Inc. Class A Common Stock · Health Care

Quality score68 · Top 25%
Fair value upside-83% · bottom 25%

Thermo Fisher Scientific · Health Care

Quality score62 · above median
Fair value upside+1% · above median

Bottom line

As of Sep 14, 2026, Fair Value Calculator sees Thermo Fisher Scientific as the more attractively valued of the two: BillionToOne, Inc. Class A Common Stock trades at $98.77 versus a fair value of $16.67 (-83%), while Thermo Fisher Scientific trades at $610 versus $616 (+1%).

BillionToOne, Inc. Class A Common Stock has the higher quality score (68/100).

See the full analysis →

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A model-based valuation snapshot from 26 models. Values change with price and fundamentals; the date shown above applies.