DOJ and States Press On Against Alphabet (GOOGL) in Google Antitrust Fight With June 17 Filing

The Department of Justice and dozens of plaintiff states are continuing to press their landmark monopolization case against Google LLC, advancing the litigation with a June 17 filing in the U.S. Court of Appeals for the D.C. Circuit. The move keeps a years-long regulatory overhang squarely over parent company Alphabet (NASDAQ: GOOGL, GOOG). The case traces to October 2020, when the DOJ and eleven state attorneys general alleged Google illegally maintained a monopoly in general search and search advertising in violation of Section 2 of the Sherman Act. In August 2024, U.S. District Judge Amit Mehta found Google liable, ruling that its exclusive default-placement deals—most notably the multibillion-dollar arrangement making Google the default search engine on Apple (NASDAQ: AAPL) devices—unlawfully entrenched its roughly 90% share of search. The remedies phase, however, delivered a split outcome. In September 2025, Judge Mehta declined the government's most severe proposals, rejecting a forced sale of the Chrome browser and instead imposing behavioral remedies: limits on exclusive default agreements and requirements that Google share certain search-related data and syndication access with rivals. Both sides are now appealing. Google filed its opening appellate brief on May 22, 2026, asking the D.C. Circuit to overturn the underlying monopoly finding outright and to discard the data-sharing and syndication obligations already in effect. The company argues its dominance flowed from superior products, innovation, and investment rather than anticompetitive conduct. The government's response continues the cross-appeal it launched on February 3, 2026, joined by a coalition of state attorneys general. Plaintiffs have characterized Mehta's order as insufficient—described in filings as a 'slap on the wrist for a recidivist monopolist'—and are pushing to reinstate structural relief, including the Chrome divestiture the district court rejected. The June 17 filing reinforces that the United States and the states intend to defend the liability ruling while seeking tougher remedies on appeal. For investors, the practical near-term impact remains limited. Legal analysts broadly assess the probability of a court-ordered Chrome breakup as low at the appellate stage, and the behavioral remedies now in force have not materially dented Alphabet's search advertising economics. The D.C. Circuit's briefing schedule is expected to be finalized around mid-2026, with oral arguments anticipated in late 2026 or early 2027 and a final decision possibly extending into 2027 or beyond—potentially reaching the Supreme Court. The enduring risk for Alphabet is twofold: a remote but non-trivial chance of structural divestiture, and the steady erosion of high-margin default-placement deals that have long protected its search moat. The same dynamics carry implications for Apple, which has collected substantial annual payments tied to those default arrangements. Until the appellate process resolves, the case represents a persistent regulatory uncertainty rather than an imminent financial shock.