The content discusses Ark Invest and 21Shares’ efforts to strengthen their filing for a bitcoin ETF after BlackRock announced its plans to enter the market. Cboe, a listing exchange, shares its willingness to enter into a surveillance-sharing agreement with a bitcoin spot trading platform. The trading platform represents a significant portion of US-based Bitcoin trading. These additions differentiate the proposal from other bitcoin ETF proposals that rely on surveillance via the Chicago Mercantile Exchange. Ark Invest CEO Cathie Wood expresses optimism about the approval of a Bitcoin ETF, believing it would be a turning point in bitcoin’s institutional adoption. The article also mentions upcoming events and provides information about Blockworks’ research and newsletter services.

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