Stock futures slide as growth worries escalate

U.S. equity futures fell as investors focused on signs of slowing economic growth amid a historic rise in bond yields.

S&P 500 futures fell 0.5%, indicating that the broad index is extending its six-day decline to a seventh day. Nasdaq-100 futures fell 1%, suggesting losses for tech stocks after the opening bell. Dow Jones Industrial Average futures were down 0.5%.