BillionToOne, Inc. (BLLN) P/E Ratio History
ExpensiveTrading at 1662.5x vs 5Y avg 891.8x · 67th percentile · Material premium to history · Data 2025–2026
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P/E Ratio Analysis
As of October 3, 2026, BillionToOne, Inc. (BLLN) trades at a price-to-earnings ratio of 1662.5x, with a stock price of $105.90 and trailing twelve-month earnings per share of $0.62.
The current P/E is 86% above its 5-year average of 891.8x. Over the past five years, BLLN's P/E has ranged from a low of 169.9x to a high of 2311.9x, placing the current valuation at the 67th percentile of its historical range.
Relative to the broader market, BLLN commands a significant premium over the S&P 500 median P/E of 24.5x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our BLLN DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
BLLN Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
BLLN P/E vs Peers
Closest public peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $41B | 50.1 | 11.84 | +171%Best | |
| $2B | 38.8 | 5.79 | +14% | |
| $243B | 36.9 | 17.48 | +7% | |
| $150B | 42.5 | - | -5% | |
| $47B | 36.7Lowest | 2.49Best | +3% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
BLLN Historical P/E Data (2025–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q2 | - | $119.98 | $0.62 | 193.5x | -78% |
| FY2026 Q1 | - | $78.94 | $0.46 | 169.9x | -81% |
| FY2025 Q4 | Dec 31 2025 | $81.84 | $0.04 | 2311.9x | +159% |
Average P/E for displayed period: 891.8x
BLLN Chart Terminal
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Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
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Peer Comparison
Compare growth, multiples, and margins vs sector.
BLLN — Frequently Asked Questions
Quick answers to the most common questions about buying BLLN stock.
What is BLLN's P/E ratio?
BillionToOne, Inc. (BLLN) trailing twelve-month P/E ratio is 1662.5x, based on TTM diluted EPS of $0.62. The 5-year average P/E is 891.8x and the historical range spans 169.9x to 2311.9x.
Is BLLN stock overvalued or undervalued?
BLLN trades at 1662.5x P/E, above its 5-year average of 891.8x. The 67th percentile ranking within the 169.9x–2311.9x historical range indicates a premium to historical valuation.
Is BLLN stock expensive?
Yes, BLLN is expensive relative to its own history. The current P/E of 1662.5x is above the 5-year average of 891.8x. The stock sits at the 67th percentile of its 5-year valuation range.
What is BLLN's historical P/E range?
Over the past 5 years, BLLN's P/E ratio has ranged from 169.9x to 2311.9x, with a median of 193.5x and an average of 891.8x. The current P/E of 1662.5x places the stock at the 67th percentile of this range. Full historical data spans 2025–2026.
How does BLLN's P/E compare to the S&P 500?
BLLN trades at 1662.5x P/E versus the S&P 500 median of 24.5x. The 6686% premium to the market typically reflects higher expected earnings growth or quality.
How does BLLN's valuation compare to sector peers?
BillionToOne, Inc. P/E of 1662.5x can be benchmarked against sector peers in the comparison table on this page.
What is BLLN's PEG ratio?
BLLN PEG ratio is N/A, based on a P/E of 1662.5x and EPS growth of 106.8%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is BLLN's earnings yield?
BLLN earnings yield is 0.06%, the inverse of its 1662.5x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.