Brian Kelly, Head of BKCM, highlights the investment case for the REX BKCM ETF (BKC), which owns companies involved in cryptocurrencies and blockchain.  Eric Ervin, President & CEO of Reality Shares, spotlights the first China-focused blockchain ETF, the Reality Shares Nasdaq NexGen Economy China ETF (BCNA). Also, ETF.com's Dave Nadig discusses risk-managed ETFs designed to help hedge against market declines.