The U.S. Security and Exchange Commission (SEC) is reviewing around 40 bitcoin ETF filings with multiple decision deadlines on futures-linked products hitting next week. Under federal law, ETFs are cleared for approval if the regulator allows a mandated deadline to pass. CoinDesk's Nikhilesh De breaks down the process for ETF approvals, the proposals most likely to be allowed to launch first, and the wider U.S. crypto regulatory landscape.