The S&P 500 gained 1.7% and added $1.2 trillion in market cap after the US-Iran deal reopened the Strait of Hormuz, sending oil prices down over 4%.

Shares have soared in Asia after a tentative deal was announced on ending the Iran war and reopening the Strait of Hormuz.

(Bloomberg) -- Stocks rallied, oil slumped and the dollar fell after the US and Iran said they had reached a deal to reopen the Strait of Hormuz.

Asian shares climb with Japan’s Nikkei nearing record close