Alphabet (GOOG) Stock Today: Google Class C Shares Face AI Rival Pressure, New Antitrust Risks, and a Waymo Recall — What Investors Are Watching (Dec. 12, 2025)

Alphabet Inc.’s Class C stock (NASDAQ: GOOG) is under the microscope on December 12, 2025, as investors weigh a fast-moving mix of AI competition, regulatory headlines in the EU and U.S., and Waymo safety scrutiny—all against the backdrop of a market that’s turning more selective about the payoff timeline for Big Tech’s AI spending. ^[1]

GOOG closed at $313.70 on Dec. 11 after swinging between roughly $309.88 and $321.99, and it was indicated modestly higher in premarket trading early Dec. 12 (delayed quote) as traders digested fresh headlines. ^[2]

Key takeaways driving GOOG right now

• AI competition is intensifying: OpenAI rolled out GPT‑5.2 and landed Disney as a strategic partner, adding fresh pressure to the “AI platform” narrative across the sector—including Google Search, Gemini, and Workspace. ^[3]
• Regulatory risk is back on the front page: Reuters reports the EU is preparing to fine Google next year over alleged Digital Markets Act compliance shortfalls in Search,…