I have read that once you have 20 or 30 diversified stocks you are almost as diversified as if you own a market index.
I would like to reap the gains of index investing (you basically make the markets gains/losses) while still having choice in the 20 or 30 diversified stocks I choose.
I just feel better being somewhat active in stock picking, while being well diversified, vs being totally passive.
Any disadvantage to this (aside from rebalancing, and fees) vs the standard advice to buy a passive market index?