Michael Burry, the investor who famously predicted the 2008 housing market collapse, sparked fresh debate about market valuations on Monday after posting a cryptic message on X as investor enthusiasm continues to build across artificial intelligence, technology stocks and SpaceX‘s (NASDAQ:SPCX) historic public market debut.



“It has been ridiculous for a very very long time,” Burry wrote Monday, but stopped short of elaborating on the statement.



<h2>A Familiar Warning From Burry</h2>



Earlier this year, the famed “Big Short” investor cautioned that the semiconductor sector was beginning to resemble the dot-com era, comparing the chip rally with the peak of the late-1990s technology bubble.



Burry has previously warned on everything from the housing bubble and meme-stock frenzy to passive investing and elevated equity valuations. 



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<blockquote>It has been ridiculous for a very very long time.— Cassandra Unchained (@michaeljburry) June 15, 2026</blockquote>
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<h2>Markets Are Riding A Wave Of Optimism</h2>



Burry’s post comes as investor enthusiasm has surged across financial markets, fueled by AI boom, soaring technology stocks and SpaceX’s record-breaking IPO. 



Nvidia Corp (NASDAQ:NVDA), Microsoft Corp (NASDAQ:MSFT), Meta Platforms Inc (NASDAQ:META), Google‘s parent Alphabet Inc (NASDAQ:GOOG) (NASDAQ:GOOGL) and other AI leaders have added billions of dollars in market value as investors bet that AI will transform industries and unlock a new era of growth.



The optimism has extended beyond AI. SpaceX made its public market debut on Friday, raising $75 billion by selling 555.6 million shares at $135 each, making it the largest IPO on record. The stock opened at $150 and climbed to an intraday high of $176.52.



Burry is not alone in expressing caution over AI. Bridgewater Associates founder Ray Dalio has warned that investor enthusiasm around AI resembles previous periods of technological euphoria, while fellow “Big Short” investor Steve Eisman has said he is increasingly concerned about the sustainability of the rally.



<h2>Bubble Warnings Have Become A Burry Trademark</h2>



Burry rose to prominence after predicting and profiting from the collapse of the U.S. housing market before the 2008 financial crisis, a bet later chronicled in the book, The Big Short.



Since then, the investor has become one of Wall Street’s most closely watched contrarian investors, frequently warning about asset bubbles, speculative excesses and risks that he believes are being overlooked by the broader market.



Price Action: SpaceX gained 19.6% on Monday to $192.50 and rose further 3.49% in after-market trading.



Benzinga Edge Stock Rankings show SPCX stock has a positive price trend across the short, medium and long-term.



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This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.



Photo Courtesy: Spyro the Dragon on Shutterstock.com

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Investor Michael Burry posted a cryptic message on X, stating market valuations have been 'ridiculous for a very very long time,' reigniting concerns about excesses amid surging enthusiasm for AI stocks and SpaceX's record-breaking IPO. This warning aligns with his history of predicting bubbles, such as the 2008 housing crash and dot-com era parallels.

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Michael Burry Makes An Observation As Investors Embrace AI And SpaceX: 'Been Ridiculous For A Very Very Long Time'