BlackRock designates JPMorgan, Jane Street as Bitcoin ETF authorized participants BlackRock disclosed JPMorgan Securities and Jane Street as intended participants for its proposed Bitcoin ETF before the SEC decision. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Bitcoin - @ January 1, 1970 12:00 am