Por que até agora os gringos não estão falando sobre isso? 
https://bitcointalk.org/index.php?topic=1787676.0
https://bitcointalk.org/index.php?topic=1914840.0
https://bitcointalk.org/index.php?topic=1797944.0
https://bitcointalk.org/index.php?topic=1794797.0
https://etfdailynews.com/2017/04/29/as-sec-reviews-bitcoin-etf-again-an-ethereum-etf-might-come-first/
https://www.forbes.com/sites/allaneberhart/2017/04/06/sec-rejects-bitcoin-etfs-should-you-reject-bitcoin-investments/#1a39bbf379bd
http://www.cnbc.com/2017/04/26/bitcoin-price-sec-winklevoss-etf-review.html