US benchmark equity indexes closed mixed on Tuesday after the consumer price index increased in April.

The Nasdaq gained 1.6% to 19,010.08, and the S&P 500 increased 0.7% to 5,886.55. The Dow Jones Industrial Average fell 0.6% to 42,140.43. Among sectors, technology posted the biggest gain, while health care posted the steepest decline.

US Treasury yields were mixed with the 10-year rate increasing 2.5 basis points to 4.5% and the two-year rate dropping 0.8 basis point to 4%.

June West Texas Intermediate crude oil increased 2.9% to $63.75 a barrel on Tuesday.

In economic news, the consumer price index rose 0.2% in April, compared with a Bloomberg consensus that called for a 0.3% increase.

Annually, inflation cooled to 2.3% last month from March's 2.4%, which was the Street's estimate for April. The latest figure was the smallest 12-month increase since February 2021, according to the Bureau of Labor Statistics.

"There isn't a lot of evidence of tariffs boosting the (consumer price index) in April, but this shouldn't be surprising as it takes time," Oxford Economics said. "The areas where tariffs likely boosted prices in April were in furniture/bedding, appliances, and to a lesser extent toys."

In company news, First Solar (FSLR) shares surged 23%, the biggest gain on the S&P. Wolfe Research upgraded its rating on the company's stock to outperform from peer perform.

Super Micro Computer (SMCI) shares rose 16%. Raymond James initiated coverage of the stock with an outperform rating and $41 price target.

UnitedHealth Group (UNH) shares fell 18%, the biggest drop on the S&P. The company suspended its full-year outlook amid higher-than-expected medical costs, and Andrew Witty stepped down as chief executive officer, citing personal reasons.

OMS Energy Technologies (OMSE) shares declined 17% in their Nasdaq debut after the company priced its initial public offering of 3.7 million shares at $9 apiece.

Gold increased 0.8% to $3,253.20 per troy ounce, while silver was up 1.5% to $33.11 per troy ounce.