US stock futures plummet, large tech stocks lead the decline again Odaily Planet Daily News: Due to the sell-off of large technology stocks and their transmission to Asian artificial intelligence related stocks, US stock futures fell on Tuesday, while investors are waiting for further progress in the US Iran negotiations. On Tuesday, the Asian technology sector suffered a heavy blow, ending its eight day streak of gains. The Japanese and Korean stock markets collectively retreated, with the Korean stock market plummeting nearly 10%. At present, super large technology stocks generally exhibit synchronous fluctuations, with Alphabet performing weakly and SpaceX falling due to the fading of the IPO boom. Market sentiment is gradually spreading to other leading technology stocks, and a cautious attitude towards the technology sector is returning. This change is in stark contrast to last year, when almost all companies related to artificial intelligence were seen as "gold mines" and any enterprise mentioning AI was highly sought after by the market. But now, the market is gradually entering a validation period of 'delivering performance', and investors demand that large-scale investment in AI infrastructure must bring actual returns. This is particularly prominent in companies like SpaceX that have negative cash flow but still raise $75 billion from IPOs. This shift has kept market sentiment tense, and this week the focus of the market will shift to Micron Technology's earnings conference call. Many investors hold AI stocks and have achieved considerable returns, and any volatility could prompt them to reduce their holdings and lock in profits, "said Jian Shi Cortesi, a fund manager at Gam Investment Management." Currently, technology stocks are particularly sensitive to the outlook for interest rates and potential interest rate hikes by the Federal Reserve