Contract Specifications Futures (10x)

Underlying asset/ ticker Deribit BTC Index
Contract 1 dollar per Index Point
Trading hours 24H
Minimum price change US $0.01
Settlement Daily settlements at 8.00 UTC. Your realized and unrealized session profits (profits made from one settlement to other settlement) are always in real time added to your equity but are only available for withdrawal after settlement. At settlement your session profits/losses will be booked to your BTC cash balance.
Expiration dates Expirations are always at 08.00 UTC at the end of the month. Currently there is monthly future expiring every month (last friday of the month), and there is a quarterly future expiring the end of the quarter after the expiration date of the monthly future.
Contract size US $10
Initial margin 10% (10x leverage trading). Initial margin requirements can be changed without prior notice if market circumstances demand such action.
Maintenance margin 3%. When account margin balance is lower than the maintenance margin, positions in the account will be incrementally (up to 400 future contracts/liquidation) reduced as to keep maintenance margin lower than the equity in the account. Maintenance margin requirements can be changed without prior notice if market circumstances demand such action.
Mark price The mark price is the price at which the future contract will be valued during trading hours. This can (temporarily) vary from the actual futures market prices to protect against manipulative trading. See here for a detailed explanation.
Delivery/Expiration Every Friday 08.00 UTC
Delivery Price Time weighted average of Deribit BTC index measured between 07.30 and 08.00 UTC
Delivery method Cash settlement in BTC
Fees Taker fee 0.05% / Maker rebate 0.02% / Delivery fee 0.025%

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Futures
Example (futures)