U.S. stock futures moved higher on Tuesday, with the Dow Jones, S&P 500 and Nasdaq 100 up 0.22%, 0.33% and 0.64%, respectively, while the Russell 2000 gained 0.47%. The gains came as Iran vowed retaliation after U.S. Treasury Secretary Scott Bessent expanded sanctions intended to sever Tehran's economic lifelines, warning that "no one is above the reach of U.S. sanctions." Geopolitical risks around Gulf energy chokepoints emerged as oil prices attempted to stabilize after a steep decline. The 10-year Treasury yield was 4.71% and the two-year yield was 4.24%, while CME Group's FedWatch tool showed a 42.1% probability of a Federal Reserve rate hike at its September meeting. SPDR S&P 500 ETF Trust rose 0.37% to $766.30 and Invesco QQQ Trust advanced 0.69% to $711.21 in premarket trading. Longeveron fell 13.62% after announcing a 1-for-10 reverse stock split; Navitas Semiconductor gained 6.21% after agreeing to acquire Claros; Gorilla Technology plunged 9.72% after missing earnings estimates while exceeding revenue expectations; Real Brokerage dropped 88.96% after announcing a $450 million share repurchase authorization plan; and Zoom Communications slipped 0.057% ahead of expected quarterly earnings of $1.48 per share on $1.27 billion in revenue. Veteran market strategist Ed Yardeni maintained his bullish view, projecting the S&P 500 at 8,250 by year-end and 10,000 by the end of the decade. He said technology, resilient spending and "FEMO"—Fabulous Earnings Momentum—were supporting the rally, while warning that credit crunches pose the greatest threat to economic expansions. Investors were also awaiting June S&P Cotality Case-Shiller home prices, July new home sales and August Conference Board consumer confidence data. WTI crude fell 1.99% to about $83.32 a barrel, spot gold declined 0.49% to about $4,628.38 an ounce, the U.S. Dollar Index edged up 0.03% to 99.0330 and Bitcoin rose 3.80% to $79,955.49. Asian markets were mixed and European markets opened higher.