Why Black Tuesday Matters Posted on 10/29/2019 by Cobiz Ninety years ago, on Oct. 29, 1929, the U.S. stock market plummeted nearly 13%. Wall Street investors panicked and unloaded their stock. The unprecedented financial crash became known as Black Tuesday. … Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on X (Opens in new window)