The Moat Index
Compare moats, side by side.
Two to four companies, scored on the same five investor questions from their SEC filings — so the comparison is apples to apples. The method is fully public.
BIIB · Healthcare · Narrow moat
On the watchlist
The balanceSheet component abstained: Insufficient leverage/coverage inputs to score the balance sheet. The other four 20% weights were renormalized over the scored 80%.
CARL · Healthcare · Narrow moat
On the watchlist
The returnsOnCapital component abstained: Not enough years of ROIC data to score returns on capital. The other four 20% weights were renormalized over the scored 80%.
| Measure | BIIB | CARL | ZBH | ROK |
|---|---|---|---|---|
| Moat Score (0–100) | 67 (highest) | 67 (highest) | 67 (highest) | 67 (highest) |
| Methodology version | moat-index@3.0.0 | moat-index@3.0.0 | moat-index@3.0.0 | moat-index@3.0.0 |
| Business trend | 32 | 70 | 75 (highest) | 39 |
| Pricing power | 96 | 100 (highest) | 100 (highest) | 69 |
| Returns on capital | 100 (highest) | — | 6 | 100 (highest) |
| Balance-sheet safety | — | 55 | 100 (highest) | 59 |
| Capital allocation | 40 | 44 | 55 | 68 (highest) |
| 39% above value if growth stopped today | No price data | 2% above value if growth stopped today (largest discount to value if growth stopped today) | 347% above value if growth stopped today | |
| Market cap | $29.7B | $287M | $17.9B | $51.9B |
| Moat tier | Narrow moat | Narrow moat | Narrow moat | Narrow moat |
| Filing date | FY2025 | FY2025 | FY2025 | FY2025 |