Amylyx Pharmaceuticals, Inc. (AMLX) vs MBX Biosciences, Inc. Common Stock (MBX)
A side-by-side comparison of Amylyx Pharmaceuticals, Inc. and MBX Biosciences, Inc. Common Stock across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.
AMLX
Amylyx Pharmaceuticals, Inc.
$27.21HealthcareDelayed quote: Oct 6, 2026, 12:55 PM EDT
MBX
MBX Biosciences, Inc. Common Stock
$56.07HealthcareDelayed quote: Oct 6, 2026, 12:55 PM EDT
Total return — AMLX vs MBX
growth of $100 · dividends reinvested · last 2yAMLX +1015.7% (+234.0%/yr)MBX +147.5% (+57.3%/yr)AMLX compounded faster over this window
AMLX MBX
AMLX vs MBX: by the numbers
- •AMLX is the larger company ($3.03B vs $2.67B market cap).
Metrics side by side
Valuation
| Metric | AMLX | MBX |
|---|---|---|
| P/B ratio | 12.65 | 6.52 |
Profitability
| Metric | AMLX | MBX |
|---|---|---|
| Gross margin | 0.00% | 0.00% |
| Operating margin | 0.00% | 0.00% |
| Net margin | 0.00% | 0.00% |
| ROE | -63.59% | -25.47% |
| ROIC | -66.60% | -28.60% |
Go deeper
Dig into the metrics
Amylyx Pharmaceuticals ROEMBX Biosciences, Inc. Common Stock ROEAmylyx Pharmaceuticals operating marginMBX Biosciences, Inc. Common Stock operating marginAmylyx Pharmaceuticals revenue growthMBX Biosciences, Inc. Common Stock revenue growthAmylyx Pharmaceuticals free cash flowMBX Biosciences, Inc. Common Stock free cash flow
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.