Crypto exchange Kraken has raised $800 million in fresh funding, including $200 from investment from Citadel Securities, to accelerate its efforts to bring traditional financial markets onto blockchain infrastructure, the company said Tuesday. The round was split across two tranches, with the main one led by institutional investors including Jane Street, DRW Venture Capital, HSG, Oppenheimer Alternative Investment Management and Tribe Capital. A follow-on $200 million investment came from market-making gi ...