With some downtime between jobs, I have finally written down a summary of all of the exchanges offering futures products that open the possibility for Crypto Index (or basis) Arbitrage opportunities available to the normal trader. This means I exclude futures products on CBOT, CME and LedgerX exchanges, as membership of these venues is beyond most mortals, or in the case of LedgerX, anyone who is not banked in the United States.

It's a rapidly growing flow and competition is hotting up now, with a range of expiries available for futures contracts: weekly, bi-weekly and monthly. This makes for an interesting, and very rewarding, environment in which to try different strategies and experiment with each exchange and index and get meaningful feedback quickly (given very few exchanges offer a viable sandbox to play in).

I'd welcome comments on:

is this analysis/summary useful and if anyone else is interested maintaining?
any other useful parameters to add
other exchanges offering futures products

Parameters:

Exchange (Futures & hedge)
Instrument Type (Future, cash)
Underlying
Contract CCY
Margin CCY
Settlement CCY
Max Leverage
Expiries (weekly, bi-weekly, quarterly)
Maker Fee
Taker Fee
Settlement Fee
Fee Comment (to describe tiering, for example)
Index (for futures contracts)
Initial Margin
Maintenance/Variation Margin
Link to contract specification

Futures Exchanges covered:

BitMEX
OKEX
Derebit
Crypto Facilities

Cash Exchanges covered:

Bitstamp
GDAX
Kraken
ITBit
HitBTC
Poloniex
Bittrex
Bitfinex