The Moat Index

Compare moats, side by side.

Two to four companies, scored on the same four filters from their SEC filings — so the comparison is apples to apples. The method is fully public.

Try AAPL vs MSFT vs KO, V vs MA, or COST vs WMT vs TGT.

GUER · Technology · Shallow moat

43/ 100
Shallow moat

Doesn't clear the bar

PSN · Technology · Shallow moat

43/ 100
Shallow moat

On the watchlist

MRAM · Technology · Shallow moat

43/ 100
Shallow moat

Doesn't clear the bar

S · Technology · Shallow moat

43/ 100
Shallow moat

Doesn't clear the bar

MeasureGUERPSNMRAMS
Moat Score (0–100)43 (highest)43 (highest)43 (highest)43 (highest)
Pricing power97 (highest)408192
Returns on capital018 (highest)110
Balance-sheet safety285155 (highest)55 (highest)
Capital discipline4480 (highest)2424
Margin of safetyNo price data27% below value (highest margin of safety)531% above valueNo price data
Market cap$29.7M$3.1B$334.3M$6.5B
Moat tierShallow moatShallow moatShallow moatShallow moat
Filings as ofFY2025FY2025FY2025FY2026
GUER vs PSN vs MRAM vs S — Moat Score Comparison · Buy Like Buffett