Dear valued customers: We are pleased to announce that V Systems(VSYS) is now listed on OKX. Please take note of the following go-live schedule: VSYS deposit -Aug 26 17:00 (HKT, UTC+8), VSYS spot trading - (VSYS/USDT，VSYS/USDK) - Aug 27 17:00 (HKT, UTC+8) VSYS withdrawal - Aug 28 17:00 (HKT, UTC+8) You may find more information about the token(s) here: V Systems(VSYS) Risk Warning: Trading digital assets involves significant risk and can result in the loss of your invested capital.

Fixed-margin mode: Margin ratio = (fixed margin + UPL) / initial margin Cross-margin mode: (Balance + RPL + UPL) / (position margin + withheld margin for working orders) 3.Clearing Without Mark Price: Clearing price = the last trading price at 09:00 every Friday (CET, UTC +1) With Mark Price: Clearing price = Mark Price at 09:00 every Friday (CET, UTC +1) 4.API Users may user V3-WebSocket Mark Price channel to obtain the latest Mark Price.

Starting October 23, 2025, for Institutional Loan users, only accounts with no option positions will be allowed to be added to risk units. Similarly, all accounts within existing risk units will be restricted from options trading. To ensure smooth operation of your risk units, remove any option trading account from the risk unit or close the option positions for those accounts. OKX team October 21, 2025

On our platform, mark price is used for liquidation checks and unrealized PnL calculations. This means a position may be affected by liquidation risk based on the mark price, even if the last price briefly looks different.

Orders are placed at prices close to the prevailing index or mark price and are refreshed every five seconds if unfilled. The system prioritises assets contributing most to net delta and processes up to five sub-accounts per cycle, in order of their delta contribution.

Risk unit merge: In our portfolio margin mode, risk units are consolidated. Perpetual futures, expiry futures, and options with the same underlying asset are merged into a single risk unit, as shown in the table below.

This means that you can switch to other account modes without needing to close your positions.Risk unit merge Risk unit merge: In the upgraded portfolio margin mode, risk units will be consolidated. Perpetual futures, expiry futures, and options with the same underlying asset will merge into a single risk unit, as shown in the table below.

The table below illustrates the range of offsetting instruments for various modes: Offset mode ETH-USDT risk unit ETH-USDC risk unit ETH-USD risk unit Derivatives ETHUSDT perpetual/expiry (positions and orders) ETHUSDC perpetual/expiry (positions and orders) ETHUSD perpetual/expiry/options (positions and orders) Spot-derivatives (USDT) ETHUSDT perpetual/expiry, ETH spot assets, ETH/USDT and ETH/USDC spot orders ETHUSDC perpetual/expiry (positions and orders) ETHUSD perpetual/expiry/options (positions

The Index Price represents the fair reference value of one virtual share or ETF unit. The Mark Price, used for liquidation, is calculated as Index Price plus a basis adjustment: a moving average of the difference between the OKX order book mid-price and the Index Price.What is the funding rate and how does it work? The funding rate is a periodic payment exchanged between long and short positions.

Mark Price The mark price for TradFi X-Perps follows the standard OKX formula: Mark Price = Index Price + Basis Moving Average Where: Basis Moving Average = Moving Average of (Mid Price − Index Price) Mid Price = (Best Ask + Best Bid) / 2 The mark price logic is the same as for regular X-Perps. Refer to the Mark Price documentation for details. Price Limits Price limits for TradFi X-Perps follow the same logic as regular X-Perps.

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However, it is possible under portfolio margin (PM) mode: in PM, margin is also calculated for long options positions, the calculated margin may exceed the premium paid, and risk from other positions within the same risk unit can be transmitted to it.8. My position was closed after the contract was delisted. Does that count as liquidation? No.

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