Okay, make that spouse instead, because spousal immunity. Also, make the funds' holdings temporarily blind: a fund does not reveal the entirety of the holdings

Okay, make that spouse instead, because spousal immunity. Also, make the funds' holdings temporarily blind: a fund does not reveal the entirety of the holdings in its portfolio until 5 years after year-end, and waits 3 months after the closing of a position to reveal that it held XYZ, Inc. during a 37 month period. The idea is not to try to exactly match "the economy" with "the market" or even with "the funds" but to disincentivize politicians making any direct connection between their work and with individual equities, while still being able to benefit from general economic growth.