Blackrock decided to look into providing ETFs for their customers that are based on Crypro Currencies. In my opinion that was the main reason for the price spark. But they cannot make that decision before the SEC hearing in August. Therefore the markets went up and are now moving back until this get's some confirmation. If that happens, in other words if the SEC approves that crypto based ETF can be traded on (non crypto) exchanges this could spark the next bull run.