Good morning, it's Monday, March 9th and here are the Five Things You Must Know Before the Market Opens, presented by The Street: [SPONSOR INTRO] First up, Stock Futures Plunge, Bond Yields Tumble and Oil Prices Collapse Stock futures tanked Monday, global stocks sank and bond yields were sharply lower as investors' fears about the spread of the coronavirus deepened and oil prices plunged as producers argued over how to cut production and lift prices as demand weakened.