CNBC Daily Open: Iran-U.S. tensions, China's factory data and a steady Bank of Japan

U.S.–Iran tensions kept escalating after President Donald Trump urged Congress to add Iran tariffs to a sanctions bill that already has bipartisan support for Russia and Tehran. The proposed duties are expected to have limited impact because the U.S. imports almost nothing from Iran, totaling just $1.4 million in goods in 2025, with art and antiques making up 55% of that value. Oil prices softened further as crude flows through the Strait of Hormuz showed signs of recovery, with West Texas Intermediate down 1.6% for September and Brent nearly 1% lower. In deals, Couche-Tard will buy Poland’s Zabka for about 32.62 billion zloty ($8.6 billion).