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

MUST portfolio overlap matters because owning multiple funds with the same underlying stocks reduces true diversification. With 514 holdings, MUST may share significant positions with broad-market funds.

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