3From Near-Collapse to a $400 Million Bet: Situational Awareness Doubles Down on Chip Startup Source Foundry

Embattled hedge fund Situational Awareness may have had to sell off the majority of its public portfolio last month, but the AI-focused fund is still making some big bets. This week, the fund invested $400 million into Source Foundry, a startup founded by Stanford researchers aiming to make chip manufacturing faster and cheaper, according to The Wall Street Journal. That brings its total investment in Source Foundry to $500 million.

The investment marks a stunning show of confidence from a fund that was, just weeks earlier, on the brink of collapse. It also underscores the growing appetite among deep-pocketed investors for startups that promise to reshape the semiconductor industry, the backbone of the AI revolution.

The Startup: Source Foundry

Source Foundry is a stealthy chip manufacturing startup founded in 2025 in San Francisco by Stanford materials scientist Abdulmalik Obaid (CEO) and Joe Burg. The company aims to reinvent the way chips are manufactured, developing simpler, faster, and more cost-effective semiconductor tools for AI computing.

The startup has already raised at least several hundred million dollars to date, including a recent fundraising at a valuation of $5 billion. Sequoia Capital previously backed the company.

Source Foundry is positioning itself as a potential alternative to industry giants like ASML, the Dutch company that dominates the market for advanced chip-making equipment. By developing more efficient manufacturing processes, the startup aims to bridge the gap between the surging demand for AI computing power and the industry's ability to scale production.

The Investor: Situational Awareness

Situational Awareness was founded by Leopold Aschenbrenner, a former OpenAI researcher in his mid-twenties who had no trading experience when he launched the fund in 2024. Despite his youth and lack of Wall Street pedigree, Aschenbrenner quickly garnered a cult-like following among investors for his bold bets on the AI sector.

Early returns were reportedly strong, but the fund faced steep losses in recent months amid a broader decline in AI infrastructure stocks. In July 2026, the portfolio value of Situational Awareness fell 67% after suffering steep losses on AI stocks. The fund was heavily leveraged nearly 4x, and the selloff triggered a cascade of margin calls from its prime brokers.

At the end of July, Situational Awareness sold the bulk of its public stock portfolio to Ken Griffin's Citadel. The hedge fund held on to its Anthropic shares, as well as its private stakes in other startups. Its assets under management reportedly fell from $20 billion to $10 billion.

In a letter to investors, Aschenbrenner acknowledged the severity of the situation, writing: "We came closer to permanent capital impairment than is acceptable to us". He added: "We let you down this month". Still, the fund's gains for the year were so staggering that it continued to be up 80% in 2026.

A Bold Bet on the Future of Chips

Despite the near-collapse, Aschenbrenner wasted no time in deploying capital. The $400 million investment in Source Foundry was made just days after the fund's public portfolio sale. It represents one of the largest known private-company bets by the fund.

Aschenbrenner's strategy has been to back early-stage startups before they have a product or revenue, as well as publicly traded stocks an uncommon approach that spans nearly every stage of a company's life cycle. The investment in Source Foundry shows his willingness to fund technically complicated and ambitious bets that will take many years to develop commercially viable technology.

The hedge fund retained its portfolio of private stakes, including a multibillion-dollar stake in Anthropic, as well as investments in cloud startup Fluidstack and chip startup MatX. Aschenbrenner had told investors he would invest up to 30% of the portfolio in private companies.

A Bet on American Semiconductor Independence

The Source Foundry investment comes at a time when the U.S. government is pouring billions into domestic chip manufacturing through the CHIPS Act. Startups like Source Foundry are seen as critical to reducing reliance on foreign suppliers and maintaining technological leadership.

For Situational Awareness, the bet is a high-risk, high-reward play. If Source Foundry succeeds in developing its technology, it could become a major player in the semiconductor industry and a massive win for the fund. If it fails, the $500 million investment could be a costly misstep for a fund already nursing deep wounds.

The story of Situational Awareness is one of extremes: a 24-year-old former OpenAI researcher who built a $20 billion fund, lost two-thirds of it in a month, and then turned around and placed a $400 million bet on a stealth chip startup. It's a narrative that captures the volatility, ambition, and sheer audacity of the AI investment boom.

As Aschenbrenner wrote to his investors: "These dynamics are essentially similar to a bank run: vulnerability begetting more vulnerability". Whether the Source Foundry bet will be a moment of redemption or a sign of overconfidence remains to be seen. But one thing is clear: Situational Awareness is not backing down.