At the close, the Dow Jones Industrial Average and the broad-based S&P 500 had each gained 0.6 percent, while the tech-heavy Nasdaq Composite Index had risen 0.8 percent.
The US stock market is showing no major concern about the ceasefire between the US and Iran, despite the parties being unable to agree on Lebanon, where Israel's bloody attacks have again prompted Iran to close the Strait of Hormuz.
The price trend for oil was somewhat less dramatic; at 10 p.m., North Sea oil was trading around $97 a barrel.
