Record-Breaking Rally at Risk as Markets Fret About Iran Peace Talks. Stock Futures Stutter.

Stocks looked set to drop on Tuesday as jitters about the Iran war resurfaced, with investors worrying it will be tough for the market to extend its record-breaking run if there is no further progress in peace talks. S&P 500 futures fell 0.1% and contracts tied to the tech-heavy Nasdaq 100 were 0.3% lower. The S&P and Nasdaq eked out record closing highs on Monday as investors opted to add Big Tech stocks–but not much else–to their portfolios.