2.1 Calculate the mark price of Futures and Perpetual Mark price = Index price + Basis of moving average Basis of moving average = Moving average of (Mid price of contract - Index price) = Moving average of [(Best ask of contract + Best bid of contract) / 2 - Index price] Note: USDT-margined, USDC-margined and crypto-margined contracts refer to the index price of base currency as their index price. E.g.

spot, which only includes spot buy and sell Cost price = (Average cost price before last buy × Amount + Price of last buy × Amount) / Net buying amount PnL = (Last price – Cost price) × Net buying amount PnL Ratio = (Last price – Cost price) / Cost price

price-based limit price rules: Phase Highest price limit Lowest price limit First minute after listing Deal price of Call Auciton period * (1+H) No price limit 1 ~ N minutes after listing Close price of last minute * (1+H) No price limit After N minutes after listing No price limit No price limit Spot trading Buy orders: Orders placed above the highest price limit will trigger the price limit rules.

What is a spot index price? Spot Index price aims to measure the price of an underlying cryptocurrency. OKX’s USDT-margined contracts are denominated in USDT index price, USDC-margined contracts are denominated in USDC index price, while coin-margined contracts use the USD-equivalent spot index price of the underlying cryptocurrency.

Options can be classified into in-the-money (ITM), at-the-money (ATM) and out-of-the-money (OTM), depending on the difference between the strike price and the price of the underlying asset. Contract Type Relationship between S (final settlement price) and K (strike price) ITM/ATM/OTM Call options S>K ITM SK OTM S=K ATM 2.

Following a sharp rise in its price beginning in early November 2024, the token experienced an initial sudden and substantial price decline of more than 80% across the market at approximately 2:28:32am (UTC+8) on April 14, 2025 ("Market Event"). We observed that substantial trading volume spikes and price decline initially happened across various centralised exchanges outside of OKX, before spreading to the overall market.

Options trading can be classified into in-the-money (ITM), at-the-money (ATM) and out-of-the-money (OTM), depending on the difference between the strike price and the price of the underlying asset. Contract Type Relationship between S (final settlement price) and K (strike price) ITM/ATM/OTM Call options S>K ITM SK OTM S=K ATM What's the settlement currency for Options trading on OKX? OKX Options Orderbooks are settled in BTC or ETH instead of stablecoins.

Dear OKX Wallet users, OKX Wallet will undergo an upgrade to enhance the pricing mechanism for inscription-based assets on September 3. Following this update, the valuation and asset data for certain inscription-type tokens will become more precise and reliable. Rest assured, this upgrade will not affect your assets as they are securely stored on blockchain. OKX Wallet will continue to provide you with high-quality products and services! OKX Wallet team September 2, 2025

Below is how you can add personalized messages to your custom price alerts on our platform: Navigate to the chart of the specific asset and select the Alerts option by selecting the bell icon above the trading chart to access the price alerts feature Start by selecting the Alerts option Select Create alerts or select an existing alert you want to edit Proceed to select the alert of your preference or the Create alerts option Set the Price and enter the price point that will trigger the alert Proceed

Dear OKTC users, Due to OKX delisting several spot trading pairs (refer to the announcement), OKTC Oracle will stop updating CHE prices. Stop updating CHE price time：October 27, 2023, 8: 00 - 8: 30 am UTC. OKTC October 26, 2023 (UTC)

Margin trading Opening positions: Long positions opened above the highest price limit and short positions opened below the lowest price limit will trigger the limit price rules. Closing positions: Long positions closed below the lowest price limit and short positions closed above the highest price limit will trigger the limit price rules. If limit price rules are triggered, the corresponding manually-placed orders will be adjusted to the price limit. 2.

On the trading screen, select Settings from the top menu Proceed with the selection of Settings from the pop-up menu On the Trading mode screen, select Spot cost price type Select between Average cost price or Cumulative cost price Select from the available options under the Spot cost price type options The cost price will also be reflected on your K-line Chart and the positions menu. Cost price on the K-line chart Cost price on the positions menu

The BTC/ETH prices of these orders are continuously updated using the Black-Scholes (BS) options pricing formula once they're placed in the order book, such that the corresponding IVs of the orders remain close to the levels you specify. The BTC/ETH prices of these orders are updated every 3 seconds in the order book. Limit orders based on USD price You can place a limit order with a USD price to specify the target price level of your options contract.

Margin mode of single currency account Profit and loss Long margin with base crypto, PnL is quoted with base crypto (using Mark price and Last price) Mark price PnL = Assets in position - (Debt + Interest) / Mark price Last price PnL = Assets in position - (Debt + Interest) / Last price Long margin with quote crypto, PnL is quoted with quote crypto (using Mark price and Last price) Mark price PnL = Assets in position * Mark price - (Debt + Interest) Last price PnL = Assets in position * Last price

TP trigger price: 8,000 USD TP order price: Market price or any price, e.g. 8,050 USD SL trigger price: 10,000 USD SL order price: Market price or any price, e.g. 10,050 USD TP will be triggered if BTC's market price drops to 8,000 USD and Jenny can exit the trade at the market price instantly or at the preset TP price, for example, 8,050 USD. Meanwhile, the SL order will be canceled.