As of today, 18 April 2023 at 04:00 UTC, the Mark Method for ARBUSDTM23 was changed to Fair Price marking.
This was possible, because we have now constructed a robust index that represents the spot price of ARB – the .BARBT index – which incorporates the ARB prices from Binance, Bybit, Gate.io, Huobi, Kraken and OKX.
Please note that this also means that Limit Down and Limit Up price protections have been removed.
If you have any questions please contact Support.