As of today, 18 January 2023 at 04:00 UTC, the Mark Method for FLRUSDTH23 was changed to Fair Price marking. This was possible, because we have now constructed a robust index that represents the spot price of FLR – the .BFLR and .BFLRT index – which incorporate the FLR prices from Gate.io, Kraken, Kucoin, and OKX. Please note that this also means that Limit Down and Limit Up price protections have been removed. Fees have been updated so that maker and taker fees align with our standard fees. If you have any questions please contact Support.