S&P 500, Nasdaq futures slide as Brent hits three-week high and 30-year yield reaches highest since 2007
U.S. stock index futures fell on Tuesday, with S&P 500 and Nasdaq contracts under pressure as geopolitical strains flared after U.S.-Iran peace hopes faded. Brent crude climbed to a three-week high and the 30-year U.S. Treasury yield touched its highest level since 2007, weighing on growth shares. Technology stocks led declines, with Tesla and Nvidia among the biggest laggards, while the VIX jumped, reflecting elevated investor anxiety.