Castle's flagship fund rose 5.9% in July. Previously, the company bought a batch of artificial intelligence stocks at a discount from troubled hedge fund Situational Awareness. People familiar with the matter said that prior to reaching this deal, Ken Griffin's castle's Wellington Fund rose only 0.45% in the month ending July 24. People familiar with the matter, who requested anonymity because the relevant information was not disclosed, said that the deal also boosted the fund's annual return to 12%. Last week, Castle bought part of the Situational Awareness open market stock portfolio at a 10% discount. At the time, the hedge fund, founded by former OpenAI researcher Leopold Aschenbrenner, was rushing to raise cash to meet the additional margin requirements faced by its highly artificial intelligence portfolio.

Castle's flagship fund rose 5.9% in July. Previously, the company bought a batch of artificial intelligence stocks at a discount from troubled hedge fund Situational Awareness. People familiar with the matter said that prior to reaching this deal, Ken Griffin's castle's Wellington Fund rose only 0.45% in the month ending July 24. People familiar with the matter, who requested anonymity because the relevant information was not disclosed, said that the deal also boosted the fund's annual return to 12%. Last week, Castle bought part of the Situational Awareness open market stock portfolio at a 10% discount. At the time, the hedge fund, founded by former OpenAI researcher Leopold Aschenbrenner, was rushing to raise cash to meet the additional margin requirements faced by its highly artificial intelligence portfolio.