I didn't say their returns would be equal, I said my returns will always be equal to the average of the market exactly because I'm a passive investor. The sum o

I didn't say their returns would be equal, I said my returns will always be equal to the average of the market exactly because I'm a passive investor. The sum of all bets is what I'll be making. The standard text on that: https://web.stanford.edu/~wfsharpe/art/active/active.htm https://web.stanford.edu/~wfsharpe/art/active/active.htm As for there not being enough of the small companies available to do the equal weighted S&P500, the smallest companies in the index have 3.5B$ in market cap. So there's almost 2T$ of that mix available and there would be much more if that amount of capital suddenly decided to implement that strategy as the market caps of the bottom of the S&P500 index would certainly rise significantly.