Wall St indexes advance with boost from chips, Iran optimism (opens original article in a new tab)

U.S. stock indexes closed higher with semiconductor shares leading the gain, following Intel's record high and an interim ceasefire agreement between U.S. and Iran. S&P 500, Nasdaq, and Dow all saw gains.

• Intel shares hit record high
• U.S. and Iran sign interim ceasefire agreement for 60 days
• S&P 500 gained 1.06%, Nasdaq rose 1.87%
• Dow up 0.14%