US equity indexes traded mixed, with big tech pushing the Nasdaq Composite higher in midday trading Wednesday.

The Nasdaq Composite rose 0.6% to 19,132.1, and the S&P 500 rose 0.1% to 5,893.6. The Dow Jones Industrial Average was 0.4% lower at 42,121.5.

Technology, consumer discretionary, and communication services were sole gainers intraday. Healthcare and utilities led the decliners.

In company news, Nvidia (NVDA) jumped 3.8% intraday, the top gainer on the Dow, as the tech bellwether announced a partnership with Humain, an artificial intelligence company backed by Saudi Arabia's Public Investment Fund.

Alphabet's (GOOG, GOOGL) Google and Advanced Micro Devices (AMD) also disclosed separate partnerships with the firm. Shares of Advanced Micro Devices, which unveiled a $6 billion share repurchase program Wednesday, jumped 5.6% intraday, among the strongest performers on the Nasdaq and the S&P 500. Alphabet's shares were up 4.2% intraday, among the biggest movers on the Nasdaq.

Tesla's (TSLA) board has formed a special committee to review Elon Musk's compensation and explore alternative ways to reward him for past performance if his contested $56 billion pay deal is not reinstated, the Financial Times reported Wednesday.

Separately, Tesla intends to ship components to the US from China for Cybercab and Semi trucks by the end of May, Reuters reported Wednesday, citing a person with direct knowledge of the matter.

Tesla's shares advanced 3.8% intraday, among the leaders on the S&P 500 and the Nasdaq.