Citadel reduces risk in its Situational Awareness portfolio by shedding more than 80% of aggregate risk, according to reporting referenced by CNBC and Yahoo News.

The coverage indicates the firm is materially changing the composition of the portfolio to lower overall risk exposure. While the articles describe the same headline figure, they provide limited additional detail in the text available to this prompt, including specifics on how the risk reduction is measured, which holdings are involved, or the timeline for the changes.

Overall, the outlets align on the central point: Citadel is significantly reducing the portfolio’s aggregate risk, while differing primarily in how they frame the move in the context of its broader investment activity. Neither source excerpt here adds further concrete figures beyond the “over 80%” reduction.