Stocks head for worst week since financial crisis

• "The path of this scourge is unknown, therefore you can't know the economic impact. You can roll the dice but it's a guess," said Brian Battle, director of trading at Performance Trust Capital Partners.
• On that note, stock sentiment swung wildly overnight, with DJIA futures plunging as much as 600 points to pare losses back to 100 points. As of 3:45 a.m., U.S. stock futures were off 0.9%.
• The Dow, S&P 500 and Nasdaq all entered correction territory on Thursday, as well as European stocks and seven major Asia-Pacific markets.
• Also heading south: Oil is on course for its biggest weekly loss since 2011, with crude prices down around 14% this week, while bond yields continue to slip to new record lows. The benchmark U.S. 10-year Treasury was last down 1 bps to 1.19%.