Spirit Airlines Is on Shaky Footing After Judge Blocks JetBlue Deal

Some investors and analysts said the airline might have to seek bankruptcy protection if it couldn’t find another buyer.

U.S. Steel Acquisition Proposal Tests Biden’s Industrial Policy

The president is under pressure from Democrats and Republicans to block the sale to Japan’s Nippon Steel, which could upset a key foreign ally.

How Elon Musk and Larry Page’s AI Debate Led to OpenAI and an Industry Boom

The people who were most afraid of the risks of artificial intelligence decided they should be the ones to build it. Then distrust fueled a spiraling competition.

Chasing Big Mergers, Oil Executives Dismiss Peak Oil Concerns

Exxon Mobil and Chevron are spending tens of billions of dollars buying oil and gas assets, betting that the International Energy Agency’s predictions of declining oil demand are wrong.

The Upshot of Microsoft’s Activision Deal: Big Tech Can Get Even Bigger

With the completion of the blockbuster acquisition, the notion that tech giants can grow through “vertical transactions” remains intact.

A ‘Shadow’ Lending Market in the U.S., Funded by Insurance Premiums

Apollo was the first to use annuities to build a major financing business. Others followed, driving the growth of the private lending market and worrying regulators.

How Short Seller Nathan Anderson Beat Carl Icahn “at His Own Game”

After a short seller targeted Icahn Enterprises, the activist investor made changes. At 87, he insists he’s not going anywhere and will refocus on rattling company cages.

Court Ruling Clears Path for Microsoft to Buy Activision

Microsoft could now complete its purchase of the video game giant as soon as this month, but it is still blocked from closing in Britain.

JPMorgan Paid $175 Million for a Business It Now Says Was a Scam

A young founder promised to simplify the college financial aid process. It was a compelling pitch. Especially, as now seems likely, to those with little firsthand knowledge of financial aid.

Elon Musk Faces Trial Over His 2018 Plan to Take Tesla Private

Investors are seeking billions of dollars in damages for their losses after Mr. Musk posted a proposal on Twitter that never materialized.