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4:01 pm: Dow drops more than 200 points

The Dow dropped about 227 points, posting its first losing week in three, as investors fled risk assets amid the intensifying fears around the deadly coronavirus. The S&P 500 dipped 1%, while the Nasdaq fell 1.7% to suffer its worst day since Jan. 27 as big tech led the broad market decline. Amazon, Apple and Alphabet all traded more than 2% lower, and Microsoft dropped 3.1%. The growing coronavirus worries reignited appetite for safe-haven assets, as investors pushed 30-year Treasury yield to an all-time low. — Li