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 | LFVN | ISRG | MRK | ZTS |
|---|---|---|---|---|
| Moat Score (0–100) | 89 | 90 (highest) | 89 | 89 |
| Methodology version | moat-index@3.0.0 | moat-index@3.0.0 | moat-index@3.0.0 | moat-index@3.0.0 |
| Business trend | 54 | 95 (highest) | 88 | 88 |
| Pricing power | 100 (highest) | 100 (highest) | 98 | 100 (highest) |
| Returns on capital | 100 (highest) | 77 | — | — |
| Balance-sheet safety | 100 (highest) | 100 (highest) | 74 | 68 |
| Capital allocation | 92 | 77 | 97 | 100 (highest) |
| 47% above value if growth stopped today | 599% above value if growth stopped today | 125% above value if growth stopped today | 17% above value if growth stopped today (largest discount to value if growth stopped today) | |
| Market cap | $79.5M | $139.7B | $362.8B | $30.4B |
| Moat tier | Wide moat | Wide moat | Wide moat | Wide moat |
| Filing date | FY2026 | FY2025 | FY2025 | FY2025 |