BP PLC, Royal Dutch Shell PLC, and other energy companies don’t have to face a redo of claims they rigged North Sea crude oil commodities prices, the Second Circuit ruled.

Facebook Inc. co-founder Chris Hughes, an outspoken critic of the social media company’s size and power, announced Oct. 17 the launch of a $10 million fund to help tame big tech.

Ohio legislators are considering whether to rewrite antitrust laws to reflect the growth of big tech in the latest sign of growing bipartisan state-level interest in confronting Alphabet Inc.’s Google and Facebook Inc.

The National Association of Realtors and four residential real estate giants must face an antitrust lawsuit alleging a nationwide scheme to rig broker commissions, a Western District of Missouri judge ruled Oct. 16.

Merck & Co. and Glenmark Pharmaceuticals Ltd. shouldn’t face claims that their alleged scheme to delay competition for the blockbuster cholesterol drug Zetia raised the price of generic versions too, an Eastern District of Virginia magistrate said.

Actress Suzanne Somers sued QVC Inc. for fraud and antitrust violations in the Eastern District of Pennsylvania, claiming the at-home shopping company used catch-and-kill tactics to favor another dietary supplement over hers.