AI INFRASTRUCTURE

Former OpenAI Researcher’s Hedge Fund Makes Major Bearish Bets on AI Chip Makers

Leopold Aschenbrenner's hedge fund, Situational Awareness, has placed significant bearish bets exceeding $5 billion against major AI chip manufacturers, while showing bullish tendencies in other areas.

Former OpenAI Researcher’s Hedge Fund Makes Major Bearish Bets on AI Chip Makers
CoinSynaptic Desk
AI INFRASTRUCTURE · Correspondent
· PUBLISHED MAY 18, 2026 · UPDATED 11:57 ET · 2 MIN READ

A striking turn in the AI infrastructure market has emerged as Leopold Aschenbrenner's hedge fund, Situational Awareness, positions itself with substantial bearish bets against prominent AI chip manufacturers. The fund's recent trading activity revealed over $5 billion in put options on industry giants, suggesting a cautious outlook on the sector's future performance.

Aschenbrenner, recognized for his previous role on OpenAI's alignment team, has attracted attention with his bold moves following the publication of his influential paper, "Situational Awareness: The Decade Ahead," which raised alarms about the rapid progression of AI technology. Three months after the paper's release, he launched his fund, which has made waves in the investment community by taking a notably bearish stance on stocks including Nvidia and Advanced Micro Devices (AMD).

Significant Positions in Puts

The hedge fund's latest 13F filing, dated May 18, disclosed that it acquired over $1.5 billion worth of put options on Nvidia alone, alongside an impressive $2 billion in puts on the VanEck Semiconductor ETF. These financial instruments allow investors to profit from a decline in stock prices, indicating Aschenbrenner's anticipation of a downturn in the chip market.

Further details reveal that the fund has also engaged in bearish bets on other key players in the AI hardware space, with more than $1 billion in puts on both Broadcom and Oracle. A comprehensive breakdown of the fund's bearish positions highlights the following:

  • Nvidia: $1.56 billion
  • Oracle: $1.07 billion
  • Broadcom: $1 billion
  • Advanced Micro Devices: $969.2 million
  • Taiwan Semiconductor Manufacturing Co.: $535.1 million
  • ASML Holding NV: $494.1 million
  • Intel: $159.1 million
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This aggressive shorting strategy aligns with a broader trend of skepticism among major investors regarding the sustainability of the tech-fueled rally that has recently propelled stock prices to new heights.

Illustrative visual for: Former OpenAI Researcher's Hedge Fund Makes Major Bearish Bets on AI Chip Makers

Aschenbrenner is not alone in this bearish outlook. Notable investors like Michael Burry, famed for his role in "The Big Short," have also revealed short positions against Nvidia. His recent critiques reflect a growing concern that the AI chip market may be overvalued amid geopolitical tensions, particularly issues arising from China.

In addition to its bearish positions, Situational Awareness has adopted a more optimistic view towards certain chip makers and infrastructure stocks. The fund holds long positions and call options on several companies, which include:

  • SanDisk: $388.8 million
  • CoreWeave: $140.6 million
  • CleanSpark: $104.5 million
  • Bloom Energy: $55.3 million

This diversification signifies a calculated strategy to capitalize on different segments of the AI infrastructure while hedging against potential downturns in the semiconductor sector.

Looking Ahead

The aggressive stance taken by Aschenbrenner’s Situational Awareness fund raises questions about the future trajectory of the AI chip industry. As investor sentiment shifts, the implications of these bearish bets could extend beyond just a few stocks, potentially influencing broader market trends in the AI infrastructure space.

While the fund did not respond to requests for comment, its trading movements signal a cautious approach to what many perceive as an overheated market. Moving forward, market observers will be keen to see how these bearish positions and underlying market conditions unfold, particularly as the tech landscape continues to evolve rapidly.

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