Tech stocks gained in overnight trading. Super Micro, Apple, Amazon up 3%; Tesla, AMD, Palantir up 2%; Meta, Alphabet up 1%.

A U.S. federal court on Wednesday blocked President Donald Trump's "Liberation Day" tariffs from going into effect, ruling that the president overstepped his authority by imposing across-the-board duties on imports from nations that sell more to the United States than they buy.

Nvidia shares rose 5% in overnight trading. NVIDIA Corp., the world’s most valuable chipmaker, gave an upbeat revenue forecast for the current period, even as a slowdown in China weighed on results. The broad chip sector rode Nvidia’s wave with SOXL up 7.5%; Marvell up 6.4%; Arm, Broadcom up more than 3%.

C3.ai, Inc. stock surged 13.8% in overnight trading after the enterprise artificial intelligence software maker reported earnings that beat analysts expectations.

The company reported a loss of 16 cents a share, beating forecasts for a loss of 20 cents a share, on sales of $108.7 million, which was slightly ahead of expectations for $107.8 million.

“This was a momentum-building year for C3 AI, achieving 25% revenue growth year-over-year,” CEO Thomas Siebel said in a release accompanying the report. For the full fiscal year ending in April, revenue was $389.1 million, up 25% from the prior year. Losses per share were 41 cents.

Salesforce shares rose about 2% in overnight trading. The software giant posted fiscal first-quarter revenue of $9.83 billion, up 8% from a year before. The company's guidance had been for $9.71 billion to $9.76 billion in revenue, which would have translated to 6% to 7% growth. Analysts tracked by FactSet had been modeling $9.75 billion.

"I'm pleased by our momentum as we capitalize on the exciting agentic AI opportunity," Chief Financial Officer Robin Washington said in a release.

Crypto shares jumped in overnight trading. TeraWulf up 5.5%; CleanSpark, Riot Platforms, MARA Holdings up 3%; Bit Digital, Canaan up 2%.

JD Vance has hailed the arrival of cryptocurrencies into the US economy’s “mainstream”, vowed to establish “pro-innovation” rules for digital assets, and praised the crypto billionaires who backed Donald Trump’s White House bid last year. Speaking to thousands of orange-clad bitcoin investors in Las Vegas on Wednesday, the US vice-president touted the emergence of crypto, and predicted that the number of Americans holding bitcoin would soon double.