Nasdaq futures crash over 300 points: 5 things to know before Wall Street opens

US stock futures fell on Tuesday as a fresh bond-market sell-off and oil above $90 revived the inflation risk investors had hoped was fading. Nasdaq 100 futures were down 1.17% at 4:50 am ET, S&P 500 futures lost 0.55% and Dow futures slipped 0.15%.