US stocks: S&P 500, Nasdaq close lower, dragged by Alphabet and megacap tech; focus on Iran (opens original article in a new tab)

US markets closed mixed with S&P 500 and Nasdaq declining due to tech sector losses, while Dow rose on healthcare and industrial gains. Oil prices dropped as US-Iran talks progressed.

• S&P 500 and Nasdaq closed lower due to declines in megacap tech stocks like Alphabet
• Dow Jones edged higher on healthcare and industrial gains despite mixed market conditions
• Oil prices fell as US and Iran agreed on a roadmap for a final deal within 60 days