Disclosure on Portfolio XIRR
Smallcase Baskets, by design, are a product where return difference due to both behavior gap and costs can be very high. They're not a standard buy and forget product.
Behavior gap is a well-defined term. In short, it denotes the difference between underlying asset’s returns, and returns as investors see in their portfolio, due to behavioral reasons.
This is a well-known phenomena in investment, and various firms over the years have published studies on anonymized bulk data, that even when assets perform decently, most investors who invested in those assets, over same period of time, wouldn’t see those returns in their portfolio. It’d be significantly lower.
A mutual fund is structured as a trust, so rebalancing doesn’t create any tax events for end investors who are invested in the same mutual fund. As for costs of STT, brokerage, and other fees associated with selling; all covered under expense ratio of the fund, which would be minuscule on a per-investor basis.
As discussed above, mutual fund NAVs are already post-cost, therefore so are the returns.
In addition to reporting CAGR of the portfolio, one should also expect to see on an average how a typical investor’s portfolio has performed, after costs, in that smallcase basket.
Publishing these numbers would only make it easier to trust smallcase that they have the best interests of investors in mind.