Cameron and Tyler Winklevoss said they hope to add more digital currency options to their Gemini Exchange in 2018, possibly including bitcoin cash and litecoin.

The twins made this announcement on Thursday at an event hosted by Cboe Global Markets Inc., Bloomberg reported. The Chicago futures exchange uses Gemini’s pricing data for bitcoin contracts, and it would need Gemini’s help to start offering derivatives for other cryptocurrencies. According to a previous report by Bloomberg, Cboe COO Chris Concannon has said:

Already, executives at LedgerX are planning for more upcoming contracts in 2018, possibly including ethereum futures.

In the meantime, Gemini, which currently lists bitcoin and ethereum, could add support for other blockchain-based assets. Some possible additions "are from the Satoshi Nakamoto family tree – bitcoin cash, litecoin," Tyler Winklevoss said, according to the Bloomberg article.

Gemini users have been able to withdraw airdropped bitcoin cash since October 2017, without any options for purchasing or selling such tokens. As of Thursday morning, OnChainFX estimated this cryptocurrency sold for roughly $1,077.28 per token.

With regards to litecoin, Tyler Winklevoss has reportedly described it as a popular "testnet" for bitcoin, the godfather of digital currencies. OnChainFX estimated litecoin prices surged 4,402 percent over the past year.

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