Alphabet Stock Jumps on Antitrust Ruling and Gemini Release

Alphabet Inc.'s stock price rose by 0.61% to $340.65 on September 3, as investors reacted positively to a federal judge's decision to reject the Justice Department's demand for Google to sell its ad exchange. The ruling instead imposed behavioral remedies on the company.

The decision removes one of the most significant risks facing Alphabet, which generates over $350 billion in annual revenue primarily from advertising. The ad exchange is a crucial component of Google's business, and a forced sale would have required unwinding years of technical integration and exposed the company to direct competition.

Additionally, Google released Gemini 3.8 Flash, its third Flash iteration in six weeks, which is a model tuned for coding and enterprise workflows priced at $0.75 per million input tokens. This release directly challenges concerns about whether Google's core search business is structurally vulnerable to AI-native competitors.

Berkshire Hathaway Chief Executive Greg Abel publicly endorsed Alphabet's AI positioning this week, stating that Berkshire's portfolio company exposure gives the firm visibility that supports confidence in Google's standing as a winner in the current AI cycle. However, the FTC investigation into YouTube remains an unresolved legal threat, which regulators are examining for potential violations of consumer protection statutes.

Alphabet's stock has climbed approximately 11% from its late-August low but still lags about 10% behind its 12-month high. Wall Street's 12-month consensus price target has drifted higher on the back of the ad-revenue beat and the antitrust ruling, although analysts differ on whether the AI investment cycle will generate competitive returns before 2028.