Anyone still holding a balance on BitMEX has two separate things to check before September 23, 2026, 04:00 UTC: whether the amount sits above the minimum withdrawal amount for that particular asset, and which network moves it out most cheaply. Both are public in the exchange's wallet interface, and together they decide whether a remaining balance can be moved at all. On 14 of 62 open withdrawal routes, the network fee on file as of September 11 matches or exceeds the minimum amount at which a withdrawal becomes possible in the first place.