Eric Balchunas, senior ETF analyst at Bloomberg, tweeted that ARK Invest has revised its 19b-4 information document for its Bitcoin spot ETF application. Similar to BlackRock's approach, ARK Invest's revision introduced a supervision sharing agreement between the Chicago Board Options Exchange (CBOE) and a well-known cryptocurrency exchange (possibly Coinbase).

Since ARK Invest's application for a Bitcoin spot ETF was earlier than BlackRock's, this modification may put it ahead in SEC approval.