The American exchange-traded fund (ETF) issuer Invesco has for the first time revealed the reason for its surprise decision to pull out of the race to bring a bitcoin (BTC) futures-backed ETF to the market - and just like its competitor Bitwise Asset Management, the firm has blamed the rules from the US Securities and Exchange Commission (SEC).... Read More: Invesco Joins Bitwise in Blaming the SEC for Decision to Withdraw ETFs