You can have -1bps/1.5bps maker/taker fees at FTX. It seems pretty tough to achieve fees similar to this at BitMex, but you start out with the maker rebate and

You can have -1bps/1.5bps maker/taker fees at FTX. It seems pretty tough to achieve fees similar to this at BitMex, but you start out with the maker rebate and have to work only to get the taker fees down. With the maximum shitcoin-buying and volume, you'll be at -1bps/2.1bps, but it's not clear how much the unreleased shitcoin will cost yet. With only dollar volume you'll get -1bps/2.5bps, which is similar to the 0bps/1.5bps you can get at FTX by opening an FTT long/short (though the daily cost of this long/short has recently been higher that your fee savings if your daily turnover is anywhere near $2mm)