Hsaka

Open interest for Okex's quarterly contract (27 march) is over $700m Bitmex only has $260m OI for the same contract

Open interest for Okex's perpetual swap is $300m. Bitmex has $1.04b for the same contract.

Okex has $1b total OI for bitcoin related Huobi has $750m OI for it's quarterly contract (perp-swap is in the works? not sure need clatification) Bitmex has $1.5b total OI for bitcoin related Which one do you see and hear about most on twitter relative to % of total OI?

Also, max leverage. But I reckon we hear the most about Mex cause most trade on mex.

ooo I didn't even consider the leverage, good shout. I can't say whether this is bad or good though, as you'f experct the exchange with higher leverage to have less *natural* OI but more ability to lead markets due to more frequent liqs ---> liquidity

Okex quarterlies are still the most liquid non perpetual product. Also still holds two of the largest notional liquidations in the last 3 years.