NewsWatch: Stock market’s volatile October history means it’s time to steady yourself for a ‘black swan’ event No Comments Uncategorized The two worst U.S. market crashes occurred in October. The two worst U.S. market crashes occurred in October. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)