Global markets slumped as US stock indexes opened lower and crude oil prices dropped sharply ahead of a scheduled economic address by US Treasury Secretary Scott Bessent concerning new sanctions on Iran. According to reporting from The Wall Street Journal and Bloomberg, the Nasdaq composite opened down 172.22 points, or 0.66%, at 26,008.24, while crude oil futures fell significantly as investors braced for what administration officials termed an economic isolation plan.
Crude Oil Prices Fall on Sanctions Expectations
Crude oil prices dropped amid market anticipation of stricter trade restrictions against Tehran. According to Reuters and CNBC, crude oil fell 2.22%, or $1.93, to settle at $85.13 per barrel for October delivery as traders evaluated the impact of impending US trade measures. The New York Times reported that the United States prepared to intensify its economic pressure campaign, prompting a broad sell-off in energy commodities as traders weighed potential disruptions to global petroleum flows.
Treasury Secretary Bessent Addresses Iran Strategy
US Treasury Secretary Scott Bessent scheduled an afternoon briefing to outline the administration’s new economic measures against Iran, an event widely previewed across financial networks.

Broader Equity Market Movements
Technology shares led losses across major US benchmarks as investors rotated out of growth stocks. Yahoo Finance figures showed the S&P 500 dropped 19.85 points, or 0.26%, to 7,654.52, while the Dow Jones Industrial Average gained 136.71 points, or 0.26%, to reach 53,413.72. Semiconductor equities acted as a primary drag on the broader indexes, pulling both the S&P 500 and Nasdaq into negative territory during early trading sessions.
Concurrently, trade tensions expanded outside the Middle East as Bloomberg reported that Donald Trump pledged to double auto tariffs on Canadian vehicles and parts beginning next year. The combination of shifting geopolitical sanctions and regional trade disputes contributed to a defensive posture among equity investors, driving safe-haven demand into assets such as gold, which rose 0.96% to $4,725.40 per ounce, according to market data.
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