U.S. Stock Futures Plunge, Tech Giants Lead Decline as Market Sentiment Turns Cautious

U.S. Stock Futures Plunge, Tech Giants Lead Decline as Market Sentiment Turns Cautious

N
News Editor
2026-06-23 07:01:03
U.S. stock futures fell on Tuesday as a sell-off in mega-cap tech stocks spilled over to Asian AI-related shares, dragging down Japanese and South Korean markets with Kospi plunging nearly 10%. The market has shifted from AI euphoria to a performance verification phase, with investors demanding tangible returns from massive AI infrastructure spending.
US stock futurestech stocksartificial intelligencemarket sentimentUS-Iran talksJapan South Korea markets

U.S. Stock Futures Drop, Asian Tech Stocks Under Pressure

U.S. stock futures declined sharply on Tuesday as a rout in mega-cap technology stocks spread to Asian artificial intelligence-related equities, according to Odaily Planet Daily. Investors are also awaiting further developments in U.S.-Iran negotiations, adding to cautious sentiment. The Asian tech sub-sector suffered heavy losses, ending an eight-day winning streak. Japan and South Korea saw broad-based retreats, with South Korea's Kospi index plunging nearly 10% in one of the worst single-day drops.

Major tech names showed synchronized movement, with Alphabet underperforming and SpaceX declining as the IPO frenzy faded. The simultaneous downturn suggests that bearish sentiment is broadening from individual firms to the entire tech sector, prompting a reassessment of valuations.

Market Shift from AI Hype to Performance Verification

The current environment contrasts sharply with last year, when virtually any AI-related company was treated as a "gold mine" and every mention of AI attracted investor enthusiasm. Now, the market has entered a phase where companies must demonstrate results: massive AI infrastructure spending must yield tangible returns. This pressure is most evident in firms like SpaceX, which raised $75 billion through its IPO despite negative cash flow. The shift has kept market sentiment on edge, with all eyes on Micron Technology's upcoming earnings call this week.

"Many investors hold AI stocks and have already booked substantial gains. Any volatility may prompt them to reduce positions to lock in profits," said Jian Shi Cortesi, a fund manager at Gam Investment Management. "Tech stocks are particularly sensitive to interest rate outlook and potential Fed rate hikes." Analysts note that elevated valuations and capital-intensive business models leave tech companies vulnerable to sentiment swings amid rising rate uncertainty.

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