alt Hacker NewsStatistics about up and down days or particular periods of the stock market can say whatever you want, because they're so easy to cherry-pick.
A more interesting stat is the current CAPE.
https://www.thetrading.tools/shiller-cape
It is at levels only seen three times in the last century.
To be fair, there is no theoretical model for estimating natural CAPE. I’d argue the world of the post 1990s deserves a higher CAPE than the one which preceded it, though we’re trying hard in American to undo that stability.