OpenAI, SpaceX and other IPOs could break the S&P 500, Jeremy Grantham says

Market Intelligence Analysis

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Why This Matters

Jeremy Grantham, a renowned investor, warns that the overheated IPO market could negatively impact the S&P 500, potentially breaking it. This is due to the high valuations and speculation surrounding companies like OpenAI and SpaceX. Grantham's warning suggests a bearish outlook for the US stock market.

Market Impact

Market impact analysis based on bearish sentiment with 90% confidence.

Sentiment
Bearish
AI Confidence
90%
Time Horizon
Short Term

Article Context

Note: This is a brief excerpt for context. Click below to read the full article on the original source.

How an overheated IPO market this year could derail U.S. stocks.

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Original article published by MarketWatch on February 17, 2026.
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