A rough start for US #stocks has gotten worse with the Dow now down 5.5% (1,500), the S&amp;P (4.6%) and the NASDAQ 4%.

Particularly striking: Moves in what recently became highly speculative stocks --e.g., #Hertz's 17% drop in the context of the one month price range (chart below). https://t.co/u38kNcenBy