Google recently launched Gemini 3, the newest version of its artificial intelligence model, one of many factors boosting its parent company Alphabet's stock. Why This Matters to You Alphabet owns Google, YouTube, and several other companies that millions of Americans use every day. It is also one of the most valuable companies in the world, with a market capitalization of about $3.8 trillion on Monday, and its stock has been roaring lately. Optimism about the company's positioning in AI looked to be lifting ...