On Tuesday, the stock market’s muted reaction to a major investment deal involving Anthropic, an artificial intelligence startup, raised concerns among investors about the potential unwinding of the AI trade. Microsoft and Nvidia announced plans to invest a staggering $15 billion into Anthropic, pushing its market valuation to approximately $350 billion—a significant increase from the $183 billion valuation recorded in September. If Anthropic were a publicly traded entity, it would rival the market capitalizations of major companies like American Express, McDonald’s, and PepsiCo.
However, contrary to past patterns of excitement surrounding AI investments, the stock market’s performance was lackluster. The S&P 500 index declined for the fourth consecutive day, dropping 0.8%, while both Microsoft and Nvidia saw their stocks fall by 2.7% and 2.8%, respectively. This shift diverges sharply from earlier reactions to significant AI-related announcements, such as Nvidia’s previous $100 billion commitment to OpenAI, which had raised its stock by nearly 4% following that news.
Peter Corey, chief market strategist at Pave Finance, commented on this behavioral shift in the market. He noted, “You’re starting to see the markets reverse their behavior,” indicating a growing concern that latest investments reflect an oversaturation of capital in AI ventures. Corey added that while the current downturn might be short-lived, the overall tone of the market remains troubling, alluding to potential long-term implications for stock valuations.
Traders at JPMorgan echoed similar sentiments, suggesting that the once-reliable trend of positive reactions to AI headlines seemed to be faltering. Their note stated that the market might be shifting as investors begin to worry about the sustainability of AI revenue streams.
Investors have been reducing their technology holdings this month, with the Nasdaq Composite index down nearly 5% in November. Looking ahead, Nvidia’s earnings report scheduled for Wednesday may provide a critical insight into the tech sector’s performance. Additionally, if upcoming nonfarm payroll numbers exceed expectations, there could still be a chance for a year-end rally.
Market technicians are monitoring key support levels in the S&P 500, particularly at 6,550. A sustained hold above that mark could signal a bullish trend. However, Corey cautioned that the reaction to the Anthropic investment might represent a pivotal moment for the stock market, which could lead to a prolonged bear market if tech valuations begin to retract in the coming year.
The risk of a significant downturn in tech stocks poses a threat to a market that has demonstrated resilience largely due to substantial investments in AI developments. This influx of capital has provided a boost to stock performance and consumer spending among affluent individuals.
Even proponents of AI are beginning to recognize the dangers of excessive inter-company investments, suggesting that such partnerships could increase vulnerabilities in the market. The rise of debt used to finance the ongoing AI push also introduces fresh risks. Skeptics highlight that the potential returns from large language models may not justify the enormous expenditures.
Kim Forrest, investment chief at Bokeh Capital Partners, articulated caution regarding extensive investments in unproven scientific endeavors. She stressed the importance of evaluating whether a technology offers real-world solutions that add value. “If not, it’s just interesting science,” she noted, adding that a decline in AI-related investments could lead to severe repercussions for the stock market as a whole.

