The Federal Trade Commission has appealed a district court ruling in its long-running antitrust case against Meta Platforms, escalating the dispute over whether the company's acquisitions of Instagram and WhatsApp violated U.S. competition law.

The appeal, filed by the FTC, challenges the outcome of the monopoly case that the agency pursued against Meta in the U.S. federal courts. At stake is the Commission's central theory: that Meta bought Instagram in 2012 and WhatsApp in 2014 to neutralize emerging rivals and preserve a monopoly in what the FTC has defined as a market for personal social networking services. The trial court ruling under appeal rejected the FTC's case, finding that the agency had not proven its market definition or its theory of competitive harm.

The Competitive Enterprise Institute, which reported on the appeal, framed the FTC's persistence with a pointed metaphor — a "wooden racket" — suggesting that the agency is fighting a modern technology dispute with an outdated enforcement toolkit. The image captures the core doctrinal question now heading to appellate review: whether century-old antitrust doctrines, built for industrial-era monopolies, can stretch to cover a social media company whose products are free to consumers.

The deciding bodies involved are the U.S. District Court for the District of Columbia, which ruled after a bench trial, and the U.S. Court of Appeals for the D.C. Circuit, where the FTC's notice of appeal now lands. Meta Platforms, Inc. is the appellee.

For antitrust practitioners, the appeal carries consequences on three fronts.

First, the D.C. Circuit's treatment of market definition will matter well beyond Meta. If the appellate court accepts the trial court's finding that the FTC failed to establish a distinct personal social networking market — separate from broader platforms such as TikTok and YouTube — the government's ability to challenge acquisitions in dynamic digital markets will narrow considerably. Merger review strategy at both agencies depends on how expansively courts read product markets.

Second, the case tests the limits of retrospective merger challenges. The Instagram and WhatsApp deals closed more than a decade ago and cleared FTC review at the time. A holding on whether the government may unwind consummated acquisitions this late, and on what evidentiary showing, will shape how the agencies sequence enforcement priorities and how companies assess residual risk on long-closed transactions.

Third, the appeal keeps structural remedies — divestiture of Instagram or WhatsApp — on the table as a live doctrinal question, even though the trial court declined to order them. Counsel for technology acquirers should track briefing on remedy standards, because any appellate guidance on when breakups are appropriate will inform both future litigation posture and deal negotiations.

The practical timeline is measured in years. Appellate briefing in the D.C. Circuit typically runs several months after the record is assembled, and oral argument would follow. Meta's business operations continue unaffected during the appeal; the district court's judgment in its favor stands unless reversed.

For now, the FTC has chosen to continue the fight rather than accept the trial court's judgment. The D.C. Circuit will decide whether the agency's case gets a second life or whether the trial court's ruling stands as the final word in the government's most prominent structural challenge to a Big Tech platform.