FYI: (This is a follow-up article)
ProShares, which is the 10th largest ETF company, according to ETF.com, filed Wednesday with the SEC for two bitcoin ETFs.
The ETFs will track bitcoin futures contracts traded on the Chicago Board of Options Exchange, the filing said. However, those futures contracts aren't available yet and VanEck withdrew its application for a similar bitcoin ETF for that reason.
Regards,
Ted
https://www.cnbc.com/2017/09/28/proshares-files-for-bitcoin-etf-and-one-to-bet-against-it.html