(Updates with index/price moves and company/geopolitical news from the first paragraph.)

US equity indexes rose amid semiconductor-led gains in technology and a decline in crude oil after midday Tuesday.

The Nasdaq Composite jumped 1.2% to 26,135.1, with the S&P 500 up 0.7% to 7,489.7, and the Dow Jones Industrial Average higher by 0.3% to 52,348.4.

Technology was the standout gainer, followed by industrials.

Of the top 20 stocks with a market capitalization of more than $200 billion, 17 were from the tech sector, according to data compiled by Finviz. Within those tech names, the majority were either semiconductors or semiconductor equipment and materials. The top gainer was Advanced Micro Devices (AMD), trading up 7.1%.

In geopolitical news, US envoy for the Middle East Steve Witkoff and President Donald Trump's son-in-law Jared Kushner are in Doha to meet Qatari mediators, CNN reported Tuesday, citing Qatar's Foreign Ministry spokesperson. The US duo will not meet with Iranian officials, the news report added.

The mediators are working as go-betweens for US-Iran talks, which won't include any high-level officials, Qatar's Foreign Ministry spokesman Majed al-Ansari said, according to an Associated Press report.

The front-month global benchmark North Sea Brent slipped 0.2% to $73.01 per barrel, and the US West Texas Intermediate fell 1.1% to $70.00 per barrel.