US Stock Futures Slide as Iran Denies Nuclear Inspection Claims and Tech Shares Plunge

Bearish (-0.7)Impact: High

Published on June 23, 2026 (4 hours ago) · By Vibe Trader

US Stock Futures Slide as Iran Denies Nuclear Inspection Claims and Tech Shares Plunge

US stock futures experienced a sharp decline during European trading hours on Tuesday, with Dow Jones futures falling by 0.72% to around 51,750, S&P 500 futures down 1.4% near 7,430, and Nasdaq 100 futures dropping 2.29% to approximately 29,950 [1]. The downturn was triggered by fading optimism over a potential US-Iran peace agreement after Iran's foreign ministry denied US Vice-President JD Vance's claim that Iran would allow International Atomic Agency (IAEA) nuclear inspectors back into the country. Tehran clarified that 'no new commitments' had been made regarding nuclear inspection policies following the first round of bilateral talks in Washington aimed at ending the conflict [1].

Geopolitical tensions were compounded by investor concerns over the Federal Reserve's hawkish policy outlook, which negated any positive momentum from temporary signs of easing US-Iran tensions. This combination of monetary policy caution and geopolitical friction carried over from the previous session's losses on Wall Street [1].

During Monday's regular US trading session, technology shares led a sharp sell-off, with the S&P 500 and Nasdaq 100 sliding by 0.37% and 1.32%, respectively. The Dow Jones, however, managed a modest gain of 0.29% [1]. Major mega-cap technology stocks were at the forefront of the decline: SpaceX plunged 16.4% for its third consecutive losing session after unveiling a new bond offering, Alphabet fell 5%, Amazon dropped 4.8%, Broadcom slid 4.7%, Microsoft lost 3.2%, and Meta Platforms shed 2.3% [1]. In contrast, Micron jumped 6.8% after announcing a new strategic partnership with AI firm Anthropic [1].

CONCLUSION

US stock futures are under pressure due to renewed geopolitical uncertainty and a hawkish Federal Reserve outlook, with technology shares experiencing significant losses. The denial by Iran of nuclear inspection claims has dampened hopes for a US-Iran peace agreement, further weighing on market sentiment. Despite the sector-wide sell-off, Micron's partnership with Anthropic provided a rare bright spot in the tech space.

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US Stock Futures Slide as Iran Denies Nuclear Inspection Claims and Tech Shares Plunge | Vibetrader