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AI Stock Bubble: Echoes of Dot-Com Era, Looming Market Correction

Source: theglobeandmail.com

Published on October 12, 2025

Updated on October 12, 2025

Graph showing AI stock growth with a warning of a potential market bubble

AI Stocks Surge Amid Bubble Fears

Artificial intelligence (AI) stocks have become a dominant force in the market since the launch of ChatGPT, driving significant growth. However, experts warn that this rapid expansion may be fueling a tech bubble, similar to the dot-com crash of the early 2000s. This potential bubble is driven by excessive investment and speculation, raising concerns about an impending market correction.

AI Dominance in the Market

AI-related stocks now account for a substantial portion of the S&P 500's returns. According to a recent report by J.P. Morgan, these stocks are responsible for 75% of the index's returns, 80% of earnings growth, and 90% of capital spending growth. This dominance highlights the tech sector's reliance on AI for sustained market performance.

The Boom and Bust Cycle

Historically, revolutionary technologies with unlimited funding often experience a boom and bust cycle. The current heavy investment in AI by the tech sector is creating a financial imbalance, which could lead to a similar cycle. While the boom phase lays the groundwork for future advancements, the inevitable bust can have severe economic consequences.

Market Tipping Point

Investors are now grappling with the question of when the AI boom will reach its peak. Financial media outlets have begun to highlight concerns about high valuations and the concentration of Big Tech companies in the U.S. market. Apollo Global Management's chief economist has even suggested that the current AI bubble is larger than the IT bubble of the 1990s.

Valuation Debate

Despite these concerns, some market strategists argue that the current stock valuations are not as inflated as they were during the dot-com era. They point to earnings growth as a key factor supporting the market's rise. Additionally, much of the AI infrastructure is funded by cash flows rather than debt, which suggests a more stable financial foundation.

Infrastructure Spending

Morgan Stanley estimates that over the next three years, half of the $3 trillion investment in data centers will come from Big Tech's internal funds. This significant spending indicates strong momentum in the AI sector, despite the speculative behavior of the market.

Irrational Markets

Economist John Maynard Keynes famously noted that markets can remain irrational longer than investors can stay solvent. The dot-com bubble's excesses were evident long before the crash, and Alan Greenspan's warning of "irrational exuberance" in 1996 did little to curb the market's climb for years afterward.

AI Infrastructure Growth

Spending on data centers is rapidly increasing and is expected to soon surpass U.S. office building construction. This massive investment in AI infrastructure is almost guaranteed to continue, despite concerns about overspending.

Circular Funding

Meta's CEO, Mark Zuckerberg, has downplayed the risk of overspending on AI, emphasizing the importance of not building too slowly. Meanwhile, Nvidia plans to invest heavily in OpenAI, which will, in turn, spend significant amounts on computing power from Oracle. This creates a circular effect of money recycling among major industry players, reminiscent of the dot-com bubble.

Investor Caution

As the AI market continues to grow, investors are advised to exercise caution. Avoiding both premature exits and excessive risk-taking will be crucial in navigating the potential bubble and ensuring long-term financial stability.