Dow Jones| Nasdaq | US Stock Market Today | Live: US stock futures muted amid focus on US-Iran negotiations

US stock index futures traded largely flat on Monday after Friday's market holiday, as investors monitored progress in the US-Iran negotiations held in Switzerland. Mediators reported encouraging progress in the first round of talks, with a 60-day roadmap agreed, though tensions remain over Lebanon and the Strait of Hormuz. Separately, oil prices fell up to 2% on the diplomatic optimism, while memory-chip makers like Micron and SanDisk gained around 4% premarket on AI demand hopes ahead of Micron's quarterly results. Investors are also awaiting Thursday's PCE inflation report for signals on the Fed's rate path, with markets pricing in a 25-basis-point hike in September.