Some believe Alphabet's success with its TPU chips could make it a challenger to Nvidia's data center dominance.

Even though many Americans remain glum about the economy and the state of the country, there may be good news in financial markets next year.

AI stocks stumbled as investors questioned valuations and rising market concentration, today, Dec. 17, 2025. The U.S. Census Bureau's October estimates show stagnating retail sales, which puts pressure on retailers and other consumer-focused sectors.

Shares of Medline, which sells medical products such as ECG/EKG machines and post-operation bandages, were up more than 31% in afternoon trade above 38. The Nasdaq-listed stock opened nearly 21% above its IPO price of $29 a share, which marked $6.26 billion raised by the company.

The "Magnificent Seven" stocks have been the primary driver of this market power concentration. Those seven companies — Microsoft ( MSFT ), Amazon ( AMZN ), Alphabet ( GOOGL ), Meta ( META ), Tesla ( TSLA ), Nvidia ( NVDA ), and Apple ( AAPL) — are essentially powering the artificial intelligence boom.

SES AI stock has fallen dramatically in recent weeks. A major collaboration is lifting its stock higher today.

The Dow, S&P 500, and Nasdaq rallied Thursday after the November CPI report. The Dow and S&P 500 snapped four-day losing streaks.

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This artificial intelligence IPO stock is up 73% so far in 2025. Here is why it could be a bust in 2026. CoreWeave's revenue growth is explosive as data center demand skyrockets. However, the company is borrowing extensively to fund that growth. The stock may suffer under the weight of this debt load sooner rather than later.

The first Consumer Price Index Report since the government shutdown showed inflation slowing. Follow for the latest moves in the Dow, Nasdaq and S&P 500, as well as the top finance, economics and business stories.