Stocks Drop Sharply On September 20 As The 50-Day-Moving-Average Is Shattered By: TalkMarkets September 20, 2021 at 18:34 PM EDT It was a pretty brutal day, with the S&P 500 falling 1.7% and the Qs down 2.2%. Read More >> Related Stocks: Adv Micro Devices Apple Caterpillar SPDR S&P 500 ETF Trust Unity Software Inc VIX