Stock futures are little changed after major averages tumble in tech sector sell-off: Live updates

S&P 500 Gains and Losses Today: Chip Stocks Drop as Top Firms Cite Export Restriction Effects

Dow closes nearly 700 points lower after Powell comments

Stock Slide Picks Up Steam. Dow Down 700 Points.

Stock Market Today: Dow Jones Tumbles On Powell Comments; Trump Curbs Hit Mag 7, Warren Buffett Stock Rises (Live Coverage)

Indexes drop as Fed's Powell says growth appears to be slowing; Nvidia tumbles