Deribit

Deribit is currently the largest cryptocurrency options exchange. Its Bitcoin options trading volume accounts for more than 80% of the total market trading volume, and the Ethereum options trading volume accounts for more than 90% of the total market trading volume. Like most cryptocurrency exchanges, Deribit trades 24x7. Despite the fact that Deribit accounts for the vast majority of Bitcoin options market trading volume, it is an unregulated exchange.