India, Sept. 15 -- US stock futures fell on Tuesday as investors worried about oil, interest rates and AI stocks. Higher crude oil prices, rising Treasury yields and growing uncertainty around demand for artificial intelligence technology were the main reasons for the weakness. Investors are also worried that high inflation could force the Federal Reserve to keep raising interest rates, making borrowing more expensive.

Alphabet and Microsoft both fell about 1% in premarket trading. Chip stocks, which were hit hard during Monday's selloff, were mostly moving within a narrow range. Nvidia was slightly higher, showing that not every AI-related stock was falling, according to Reuters. The weakness in technology stocks is important because th...