(Updates with index/price moves and geopolitical news from the first paragraph.)
US equity indexes rose amid standout gains in communication services and consumer discretionary in midday trading on Monday.
The Nasdaq Composite jumped 1.4% to 25,646.1, the S&P 500 rose 0.8% to 7,412.5, and the Dow Jones Industrial Average advanced 0.5% to 52,123.5.
Technology was among the top three gainers intraday. Materials and real estate led the decliners.
In geopolitical news, President Donald Trump said the US will meet with Iran in Doha, Qatar, on Tuesday, after US officials said both sides agreed to "stand down for now" and that negotiations remained on track following strikes over the weekend, CNN reported Monday, adding that Iran has not confirmed that talks will take place.
The front-month global benchmark North Sea Brent rose 1.3% to $72.95 per barrel, and the US West Texas Intermediate climbed 1.9% to $70.52 per barrel.
Most US Treasury yields rose, with the 10-year up 1.1 basis points to 4.38%. The two-year rate jumped 2.9 basis points to 4.12%.
Gold futures slumped 1.6% to $4,032.5, and silver futures dropped 2.5% to $57.73.