Leading early declines are Amazon (-3.8%) after the president took another shot at the company this morning, and Walmart (-2.8%), which is reportedly eyeing a bid for Humana.
Tesla is down another 6.7%, Facebook 1.8%, Google 1.5%, and Microsoft 1.2%. Apple is flat on the session.
Just before 10:30 ET, the Nasdaq is off 1.35%, the S&P 500 0.9%, and DJIA 0.45%.
Update at 12:41 ET: The slump deepens, with the Nasdaq down 2.5% and S&P 500 2.3%.
Now read: Stocks post sharp gains at midday »
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