US Stock Market Live Updates: Wall Street futures fell Monday after Donald Trump ordered a naval blockade of the Strait of Hormuz, following the collapse of US-Iran talks in Islamabad. Losses, however, narrowed as markets steadied. Dow futures were down 500 points, or about 1.04%, after dropping as much as 580 points earlier. S&P 500 and Nasdaq-100 futures were also 0.7% at around 17:20 IST.