Ken Griffin of Citadel in a letter to clients on Friday addressed the firm's purchase of assets from Leopold Aschenbrenner's Situational Awareness hedge fund.
According to a letter obtained by CNBC's Sara Eisen, Griffin told clients that Citadel has unwound more than 80% of the aggregate risk from the original portfolio purchased by conducting more than 100 block trades over $4 billion in market value.
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