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.
MRK · Healthcare · Wide 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%.
ZTS · Healthcare · Wide moat
Wonderful & reasonably priced
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 | ALGN | MRK | ZTS | EXEL |
|---|---|---|---|---|
| Moat Score (0–100) | 88 | 89 (highest) | 89 (highest) | 87 |
| Methodology version | moat-index@3.0.0 | moat-index@3.0.0 | moat-index@3.0.0 | moat-index@3.0.0 |
| Business trend | 41 | 88 | 88 | 95 (highest) |
| Pricing power | 99 | 98 | 100 (highest) | 100 (highest) |
| Returns on capital | 100 (highest) | — | — | 76 |
| Balance-sheet safety | 100 (highest) | 74 | 68 | 100 (highest) |
| Capital allocation | 100 (highest) | 97 | 100 (highest) | 63 |
| 138% above value if growth stopped today | 101% above value if growth stopped today | 23% above value if growth stopped today (largest discount to value if growth stopped today) | 466% above value if growth stopped today | |
| Market cap | $11.9B | $324.1B | $32.0B | $14.5B |
| Moat tier | Wide moat | Wide moat | Wide moat | Wide moat |
| Filing date | FY2025 | FY2025 | FY2025 | FY2025 |