Using a precise definition of a bubble as a two-sigma event — statistically expected every 44 years if random but actually occurring every 36 years — all 26 identified historical bubbles that met this definition broke all the way back to their pre-existing trend.

factualpending

Speaker

Jeremy Grantham

Evidence Quote

there were 26 of them, and 26 broke all the way back to the pre-existing trend

Source

Billionaire investor Jeremy Grantham: This is the most expensive market in American historyCNBC Television
Created: 7/5/2026, 11:28:50 PM

My Notes

Loading notes...