Ahead of the United States' announcement of sanctions against Iran, the three major U.S. stock indexes opened mixed.
On the 24th (local time) at the New York Stock Exchange, the Dow Jones Industrial Average rose 163.36 points, or 0.31%, to 53,440.37. The Standard & Poor's (S&P) 500 fell 23.59 points, or 0.31%, to 7,650.78, and the Nasdaq composite dropped 241.37 points, or 0.92%, to 25,939.08.
Investors were on edge ahead of the U.S. announcement of economic sanctions on Iran.
The previous day, U.S. Treasury Secretary Scott Bessent posted an op-ed in the Financial Times (FT) titled "Iran's economic D-Day is coming."
In the piece, Minister Bessent said, "We are preparing the largest single financial attack ever mounted against an adversary," adding, "Countries that do not cooperate will become global outcasts."
Minister Bessent plans to disclose detailed sanctions at a press briefing in the afternoon.
Also in focus this week are Federal Reserve (Fed) Chair Kevin Warsh's speech at the Jackson Hole Economic Policy Symposium and Nvidia's earnings report.
By sector, consumer goods and financials were strong, while technology and energy were weak.
As U.S.-Canada trade talks collapsed, shares of steelmakers Nucor and Steel Dynamics rose around 4%.
Memory corporations' shares weakened on caution ahead of Nvidia's earnings. SanDisk (-10.73%) and Western Digital (-7.02%) both fell sharply.
International oil prices declined.
West Texas Intermediate (WTI) for October 2026 delivery was down 1.63% from the previous session at $85.64 a barrel.