Apple Siri deal drives Google past historic trillion-dollar milestone: Big tech gets even bigger

On Monday, Apple announced a huge new deal with Google — the AI version of Siri will be powered by Google Gemini. Not long after, Google achieved something very few other Big Tech companies have.

Specifically, Google's parent company Alphabet became just the fourth company to hit a $4 trillion stock market valuation, following Nvidia, Apple, and Microsoft, per CNBC.

The other three companies all reached that threshold less than a year ago, so this is a recent phenomenon in the stock market.