New Delhi, Sept. 15 -- US stock futures were trading lower in Tuesday's trade, September 15, as investors remained cautious ahead of the US Federal Reserve's policy decision, while surging Treasury yields and elevated crude oil prices fuelled expectations of the first rate hike in more than three years on Wednesday.

S&P 500 futures were down 0.3%, while Nasdaq-100 futures declined 0.4%. Futures tied to the Dow Jones Industrial Average also fell 229 points, or 0.4%. In the previous session, all three key indices closed in the red as a renewed sell-off hit chip and AI-related stocks after leading AI companies called for a slower pace of development.

Several technology stocks also fell in premarket trading, with Alphabet and Microsoft down...