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.

OSUR · Healthcare · Shallow moat

42/ 100
Shallow moat

Doesn't clear the bar

MASS · Healthcare · Shallow moat

42/ 100
Shallow moat

Doesn't clear the bar

TFX · Healthcare · Shallow moat

42/ 100
Shallow moat

Doesn't clear the bar

VIVS · Healthcare · Shallow moat

42/ 100
Shallow moat

Doesn't clear the bar

MeasureOSURMASSTFXVIVS
Moat Score (0–100)42 (highest)42 (highest)42 (highest)42 (highest)
Pricing power72878991 (highest)
Returns on capital14019 (highest)0
Balance-sheet safety55 (highest)55 (highest)028
Capital discipline242447 (highest)44
Margin of safetyNo price dataNo price data17% above valueNo price data
Market cap$272.4M$267.0M$5.9B$1.7M
Moat tierShallow moatShallow moatShallow moatShallow moat
Filings as ofFY2025FY2025FY2025FY2026
OSUR vs MASS vs TFX vs VIVS — Moat Score Comparison · Buy Like Buffett