Markets slip as Iran talks and inflation data loom while oil climbs

U.S. stock-index futures slipped Sunday as investors weighed ongoing Iran negotiations and awaited May’s PCE inflation data—the Fed’s preferred gauge—while oil rose on Middle East tensions. S&P 500 futures fell 0.4%, Nasdaq-100 futures 0.6%, and Dow futures about 183 points lower. WTI crude jumped near $78 and Brent around $81 as Trump threatened strikes on Iran and VP JD Vance met Iranian officials in Switzerland. After a weekly rebound and a Juneteenth market holiday, traders remain focused on inflation data and potential Fed rate moves, with some strategists warning of bear-market-like conditions later this year even as near-term conditions look constructive. Asia-Pacific markets were set to open mixed.