[neilknowsbest]

I was skeptical too, but it's plausible. According to the Federal Reserve's Distributional Financial Accounts release [0], the bottom 90%'s share of "corporate equities and mutual fund shares" in Q4 2023 was about 13% (5.24 / 39.94)

[0] - https://www.federalreserve.gov/releases/z1/dataviz/dfa/distr...