The Google Cloud logo was seen at Google’s announcement of its largest-ever investment in Germany on November 11, 2025 in Berlin, Germany.
Sean Gallup Getty Images News | Getty Images
alphabet On Monday, artificial intelligence trading revived after being sluggish the previous week. The company’s stock price rose 6.3%, and related AI names rose. broadcom, micron technology and AMD. Major indexes rebounded; Nasdaq Composite It was the best day in six months.
Investors were particularly enthusiastic about Broadcom because it helps Google’s parent company, Alphabet, design and manufacture custom AI chips. In other words, the more market share Alphabet’s AI products gain, the greater the benefit for Broadcom, which is currently the case for Nvidia and the broader AI sector. As a result, Broadcom stock rose 11.1%, making it the top gainer in the S&P 500.
But while investors may be rooting for Alphabet’s leadership on Monday, not everyone wants Alphabet to make the final call.
“Some investors fear that Alphabet will win the AI wars due to significant improvements to the Gemini AI model and continued benefits from custom TPU chips,” Melius Research analyst Ben Reitzes wrote to clients in a note Monday. “A GOOGL win will actually hurt some of the stocks we cover, so be prepared for volatility.”
Melissa Brown, managing director of investment decision research at SimCorp, approaches the market movement from a different angle, saying it’s concerning when a single stock drives the market higher. “I don’t see that as a sustainable force that will drive the market higher over the coming days,” she added.
Alphabet on Monday may have delivered alpha in the sense that it outperformed the market and could start a new phase of the AI frenzy, but leaving it an omega could spell trouble for investors.
What you need to know today
And finally…
Futures and options traders work on the NYSE American (AMEX) floor of the New York Stock Exchange on November 19, 2025 in New York City, USA.
Brendan McDiarmid | Reuters
Could the market be facing an “everything bubble”? Investor opinions are divided
Dan Hanbury, who co-manages global strategic equity strategies at investment management firm NinetyOne, told CNBC that while the formation of an AI bubble seems to be “the ultimate problem right now,” crazy prices go far beyond the realm of artificial intelligence.
“If you take a step back and look at valuations, I think it’s very difficult to argue that there isn’t a bubble in the U.S. market,” he acknowledged. But despite “many red flags” in the stock market, market participants need to take a broader view, Hanbury said.
— Chloe Taylor
