Wall Street's main indexes opened higher on Wednesday, with the benchmark S&P 500 just shy of a record high, as investors cheered streaming giant Netflix's strong quarterly performance and President Donald Trump's multi-billion dollar support to bolster AI infrastructure.

Dubbed Stargate, the joint venture was poised to receive an initial cash injection of $100bn from the tech giants, rising to as much as $500bn over the next four years, according to two people familiar with the matter.

U.S. President Donald Trump on Tuesday announced a private sector investment of up to $500 billion to fund infrastructure for artificial intelligence, aiming to outpace rival nations in the business-critical technology.

U.S. stock index futures rose on Wednesday, led by those tied to the Nasdaq, as investors cheered streaming giant Netflix's strong quarterly performance and President Donald Trump's multi-billion dollar support to bolster AI infrastructure.