MMBEX overlap analysis compares holdings with other mutual funds to identify shared positions. Overlapping holdings can lead to unintended concentration risk in a portfolio.

MMBEX portfolio overlap matters because owning multiple funds with the same underlying stocks reduces true diversification.

MMBEX overlap tool lets you enter any other mutual fund ticker and see the exact overlap percentage and shared holdings. MMBEX tax-loss harvesting finds highly correlated but non-identical funds.