Markets Close: US Today

• S&P 500 futures dipped 0.17% to 7,680 during early trading, while Nasdaq 100 futures fell 0.65% to 29,200.
• Dow Jones futures slipped to 53,350 as investors weighed new geopolitical risks and upcoming central bank signals.

The Big Picture

Markets are navigating a perfect storm of Iran sanctions, U.S.-Canada tariff threats, and anticipation for Nvidia earnings and the Jackson Hole symposium.

• Treasury Secretary **Scott...