Dow Jones ends down over 400 points and Nasdaq suffers worst day in 3 weeks as Apple shares slump

U.S. stocks tumbled for a second day on Tuesday as technology shares came under pressure, dragged down by Apple’s continued slump, while investors remained cautious ahead of closely watched remarks by Federal Reserve Chair Jerome Powell and labor-market data, both of which should offer more clues on the central bank’s interest-rate path and the health of the economy.

How stocks traded

• The S&P 500
  SPX
  was down 1%, to end near 5,078.

• The Dow Jones Industrial Average
  DJIA
  fell 1%, to finish around 38,585.

• The Nasdaq Composite
  COMP
  tumbled 1.7%, ending near 15,939.

The three major indexes also booked back-to-back losses after the S&P 500 and Nasdaq pulled back Monday from record finishes scored at the end of last week.