🏢 Business Planning

HHI Calculator

Sum the squared market shares. DOJ thresholds: <1500 competitive, 1500–2500 moderate, >2500 concentrated.

Company 1 share %

Company 2 share %

Company 3 share %

Company 4 share %

Company 5 share %

Company 6 share %

Company 7 share %

Company 8 share %

Result will appear here

Formule

HHI = Σ(share²)