Traders work on the floor of the New York Stock Exchange in New York, U.S. (Photographer: Michael Nagle/Bloomberg)U.S. Stock Futures Drop to Limit Down With S&P 500 ETF PlungingBookmarkMar 16 2020, 3:47 AMMar 16 2020, 3:37 PMMarch 16 2020, 3:47 AMMarch 16 2020, 3:37 PM(Bloomberg) -- Disclaimer