As of 26 January at 01:30 UTC, the Mark Method for ALTUSDTF24 was changed to Fair Price marking.
This was possible, as we have now constructed a robust index that represents the spot prices of ALT.
ALT is now priced on the .BALTT index which incorporates ALT prices from Binance, Huobi, and Gate.io.
Please note that this also means Limit Down and Limit Up price protections have been removed.
If you have any questions please contact Support.