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David Sacks, the Trump administration’s A.I. and crypto czar, has helped formulate policies that aid his Silicon Valley friends and many of his own tech investments.

A combination of strategic planning, good timing and a long-awaited product helped the maker of electronic story boxes weather the onset of tariffs.

A growing batch of companies give customers access to whatever medical tests they want — no doctor’s orders required.

The deal would combine two of the country’s major newspaper groups, a move likely to attract antitrust scrutiny.

Growing jitters over the Federal Reserve, crypto and the future of the artificial intelligence boom have helped drive a global sell-off.

The chipmaker at the center of the artificial intelligence boom reported blowout results. But that hasn’t resolved some key questions behind the tech rally.

The retailer increased its guidance for the year, anticipating more price-conscious shoppers would flock to its stores.

Mr. Musk’s xAI will work with the Saudi artificial intelligence company Humain on a new data center, part of Crown Prince Mohammed bin Salman’s effort to diversify his kingdom’s ec

The presence of business leaders at a White House event for Crown Prince Mohammed bin Salman underscores a deepening of U.S. and Saudi ties.

Uncertainty over the availability of the company’s chips, which are used in cars and electronics, had added to concerns of a global shortage.

To avoid regulatory scrutiny, big tech companies had steered clear of buying start-ups outright. Meta’s antitrust win may change that thinking.

Larry Summers, a former Treasury secretary, is stepping back from public commitments. It’s the latest fallout for an associate of Jeffrey Epstein.

The Amazon founder is tapping his fortune to help fund Project Prometheus, an artificial intelligence start-up, even as he has said A.I. may be in a bubble.

As President Trump has championed crypto and the industry has gone mainstream, funds from scammers and other criminal groups have flowed onto major crypto exchanges.