Absolute bloodbath in the US stock market!!! The largest one-day wipeout in US stock market history Western stock markets experienced a significant decline on November 5, 2026, resulting in an estimated loss of $3.2 trillion in market capitalization. The technology-focused Nasdaq fell 5.5%, representing its biggest one-day decline in eighteen months and confirming an entry into correction territory, after falling more than 10% from an October peak.