“It will bring more participants into the market who will now be able to express a viewpoint on bitcoin,” said Cameron Winklevoss, president of Gemini, in a phone interview. CBOE’s relationship with Gemini marks a deeper foray into the world of digital currencies, which hit a market capitalization of $100 billion this year. U.S. equity options exchanges have been plagued by flatlining volumes in recent years. CBOE’s marquee product—the CBOE Volatility Index, or VIX—slumped to historic lows this year. Unlike global stock markets that have experienced extraordinary calm, digital currencies have oscillated wildly, likely making them alluring assets for derivatives traders.

https://www.wsj.com/articles/cboe-teams-up-with-winklevoss-twins-for-bitcoin-data-1501675200