you already added 796-bitcoin-futures,
there are 3 big volume futures exchange:
796,okcoin,bitvc(huobi subsidiary).
their market share(volume) is:
796:okcoin:bitvc(huobi subsidiary)=1:1:1.
(Very important influence,need add:
1,okcoin bitcoin futures:weekly
2,okcoin bitcoin futures:quarter
3,bitvc bitcoin futures:weekly
4,bitvc bitcoin futures:quarter
)
(Can try adding, volume is small now:
1,okcoin,bitvc bitcoin futures:"monthly","Two weeks after"
2,okcoin,bitvc litecoin futures:all
)
OKCoin futures available here:
https://cryptowat.ch/okcoin/btcusd-weekly-futures/
https://cryptowat.ch/okcoin/ltcusd-weekly-futures/
See discussion at https://bitcointalksearch.org/topic/m.9491644