The Gate ALL Composite Index selects approximately 500 USDT trading pairs from Gate futures markets weekly as its constituents, weighted using the real-time index prices of the selected markets.The following types of contracts are excluded from the Gate ALL Index:Pre-market perpetual contractsU-margined futures contractsU-margined perpetual contracts quoted in USDC or other stablecoinsCoin-margined perpetual and futures contractsComprehensive index perpetual contractsContracts delisted within the next 48 hoursGate selects the top 500 futures markets as the latest constituents of the ALL Index at 16:00 (UTC+8) daily. Contracts not listed before 16:00 will not be included in the composition adjustments, and contracts delisted within the next 48 hours will be removed from the Gate ALL Composite Index....