Brevan Howard Asset Management is preparing to start investing in digital assets, becoming the latest money manager looking to exploit the boom in cryptocurrencies. The firm led by Aron Landy will begin by investing up to 1.5% of its $5.6 billion main hedge fund in digital assets, according to a person with knowledge of the matter. The initial allocation will be overseen by Johnny Steindorff and Tucker Waterman, co-founders of crypto investment firm Distributed Global, the person said, asking not to be identified because the information is private. A spokesman for Jersey-based Brevan Howard declined to comment.