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.

AEHR · Healthcare · No moat

37/ 100
No moat

Doesn't clear the bar

ECIA · Healthcare · No moat

37/ 100
No moat

Doesn't clear the bar

TBPH · Healthcare · No moat

37/ 100
No moat

Doesn't clear the bar

GKOS · Healthcare · No moat

37/ 100
No moat

Doesn't clear the bar

MeasureAEHRECIATBPHGKOS
Moat Score (0–100)37 (highest)37 (highest)37 (highest)37 (highest)
Pricing power55857087 (highest)
Returns on capital14 (highest)400
Balance-sheet safety55 (highest)282828
Capital discipline242451 (highest)24
Margin of safety2206% above valueNo price dataNo price dataNo price data
Market cap$2.4B$536960$864.6M$9.0B
Moat tierNo moatNo moatNo moatNo moat
Filings as ofFY2025FY2025FY2025FY2025
AEHR vs ECIA vs TBPH vs GKOS — Moat Score Comparison · Buy Like Buffett