A tariff tantrum. DeepSeek’s deep impact. The Philadelphia Eagles’ return to the Super Bowl. Investors have seen plenty to put them on edge so far in 2025.

Key Takeaways AI stocks had a volatile week as Wall Street reckoned with the implications of a sophisticated, cost-efficient AI model from Chinese start-up DeepSeek.Semiconductor stocks such as Nvidia and Broadcom sold off on Monday as investors worried DeepSeek's efficiencies would temper enthusiasm for AI infrastructure spending.

A warning of a U.S. stock market bubble, advises diversification into value stocks, commodities, and international equities to mitigate risk.

The ramifications of Chinese startup DeepSeek, with its promise of delivering cheaper, more energy-efficient alternatives to harness artificial intelligence, have yet to be fully reflected in U.S. equities. That’s the thinking of Don Townswick, director of equity strategies at Conning Asset Management, which oversees $170 billion in assets.

Because Nvidia is still growing its revenue rapidly, using trailing earning metrics can give a false impression of where the company is headed. However, they're also useful in this case because its future had a wrench thrown into it thanks to DeepSeek's breakthrough.

The efficiency gains of DeepSeek’s AI models startled the power industry, which is set to invest billions in electricity projects.