Leopold Aschenbrenners AI hedge fund sells most public holdings after 67% July loss

Leopold Aschenbrenner's Situational Awareness hedge fund, which had built a reputation around artificial intelligence market exposure, experienced a dramatic reversal in July 2026. The fund suffered a 67% loss during the month—a sharp decline that erased much of the exceptional gains the fund had accumulated earlier in the year, according to CNBC's reporting on July 30.

In response to the market deterioration, Situational Awareness liquidated the majority of its public equity holdings by selling the portfolio to Citadel, the multi-billion dollar asset manager led by Ken Griffin. This transaction represents a significant de-risking maneuver for Aschenbrenner's fund and marks a notable retreat from the concentrated AI equity positioning that had initially driven strong returns.

The episode illustrates the inherent risks of thematic concentration in hedge fund portfolios, particularly in sectors experiencing rapid multiple compression or sentiment shifts. The AI equity complex, which had been a primary driver of market gains through mid-2026, faced a sharp correction in July that devastated funds with substantial long exposure. Aschenbrenner's forced liquidation demonstrates how quickly momentum-driven strategies can reverse when underlying thesis assumptions no longer hold, and how leverage or concentration amplifies losses during market dislocations.

The sale to Citadel—itself a sophisticated market participant with substantial trading and asset management operations—suggests that Aschenbrenner's fund opted for an orderly exit through a single institutional buyer rather than attempting to liquidate positions piecemeal in public markets, potentially limiting further price impact on the underlying equities.