Stock futures came regained most of their losses after the Federal Reserve unveiled an open-ended asset purchase program, which the central bank will run in the “amounts needed to support smooth market functioning and effective transmission of monetary policy to broader financial conditions and the economy.”
https://www.cnbc.com/2020/03/22/stock-market-futures-open-to-close-news.html
https://www.cnbc.com/2020/03/22/stock-market-futures-open-to-close-news.html