The U.S. indices were mostly higher during midday trading on Tuesday as investors await a monetary policy announcement from Federal Reserve Chair Janet Yellen.
Tech was leading after Monday's selloff. Nvidia Corp. (NVDA) , in particular, was moving higher after inking a deal to provide chips to some of China's largest cloud-computing companies. Alibaba (BABA) , Baidu (BIDU) and Tencent are integrating Nvidia chips into its data centers.
Red Hat Inc. (RHT) also contributed to sector gains after a better-than-expected second quarter. Adjusted earnings bested estimates by a dime. Revenue increased nearly 21%. For the third quarter, the open-source software company anticipates revenue of at least $730 million, higher than estimated.
Equifax Inc. (EFX) shares were lower after the credit-reporting company announced that Chairman and CEO Richard Smith will retire. The announcement follows a data breach that compromised the personal information for about 143 million U.S. customers. Paulino do Rego Barros Jr. was named interim CEO while the board conducts a search to find a new permanent CEO. Smith, who had served as CEO since 2005, has agreed to serve as an unpaid adviser to Equifax to assist in the transition.
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