Direct indexing means owning the individual securities that make up an index directly in a client account, rather than holding a fund that tracks it — which allows tax management and customisation at the position level.
Two things a fund cannot do. Individual positions can be sold at a loss to harvest it while maintaining broadly similar exposure, and specific holdings can be excluded for a client with a concentrated position or a genuine restriction.
A client with a large holding in one employer's stock is already exposed to it. A direct indexed portfolio can underweight or exclude that name and the sector around it, which a fund tracking the same index cannot.
Complexity, and it accumulates. Hundreds of tax lots per account, more trading, more reconciliation, and a much larger surface area for reporting to get wrong.
The tax benefit is also front-loaded. Harvesting opportunities are most plentiful early and diminish as the portfolio's basis falls, which means the value is highest in the first years.
Tax-deferred accounts, where there is nothing to harvest. Small accounts, where the position count makes it unwieldy. Any situation where the operational cost exceeds a benefit that depends on the client's specific tax circumstances.
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