In traditional options trading, delta and gamma, as known as BS delta and BS gamma, are derived from the Black-Scholes or Black options pricing model. BS delta measures the rate of change of the option price relative to the change of underlying price. BS gamma measures the rate of change of BS delta relative to the change of underlying price. For the OKX BTCUSD options contract, the calculation of delta and gamma is different from the traditional way.

Dear valued customers, Due to the huge amount of futures trading bills stored in our database, it is essential for us do perform a data migration from 09pm-10pm on Jul 27, 2018 (Hong Kong time). During the migration, you will only be able to check the futures trading bills of the last 15 days. We expect that the data migration will take approximately one week. After the migration is completed, the futures trading bills of the last 3 months will be able to be retrieved.

Regards, OKX 23:30 Mar 30, 2018 -------------------------------------------------------------------------------------------------------- UPDATED on 21:10 Currently the futures contracts data rollback has been completed. We will commence the rollback of user intra-account transfers between "Spot Account" and "Futures Account" at 21:30 Mar 30, 2018 (Hong Kong Time). The details are as follows: 1.

Once this maintenance is completed, we'll restore historical data services as soon as possible. Thank you for your support! OKX Team March 15, 2024

OKX will rollback all the data of weekly, bi-weekly and quarterly futures contracts of all tokens to 4:47 Mar 30, 2018 (Hong Kong time). 2. All weekly, bi-weekly and quarterly futures contracts will be delivered. After delivery, all open orders will be cancelled, and all holding positions will be closed at the delivery price. Weekly futures contract delivery price: The last traded price of the weekly futures contract after the rollback.

Initial: Funding account 5,000 USDT Flexible/Fix Loan: user stakes 5,000 USDT to borrow 0.1 BTC Comparison between user assets after the loan and snapshot data: Account equity Snapshot Initial assets 5,000 USDT Loan User puts down 5,000 USDT as collateral to borrow 0.1 BTC Borrowed loan? Funding account: 0.1 BTC Grow account: 3,422.46 USDT Note: This is a user's collateral equity.

For more details on the network upgrade, please visit: Mina Berkeley Upgrade OKX teamMay 31, 2024

The data on each page will appear as follows.

Discount based on BS Delta: a separate discount coefficient between 0 and 1 is applied to value of each OTM option. The smaller the absolute value of an option's BS Delta, the smaller the coefficient value is. The coefficient is set to 0 for deep OTM options, i.e. deep OTM options can not be used as collateral for borrowing at all. Upper limit: in each PM account, the sum of values of all long options after adjustments a & b above is further capped at a pre-defined upper limit level.

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.

Data calculations involve the rounding of certain numbers, which may result in minor data discrepancies. Numerical abbreviations vary across different languages. OKX doesn't guarantee the accuracy of the data. Internal transfer data has been factored into the calculations for deposits and withdrawals in the annual report. This report does not include data of transactions made via "Convert" feature.

Your rights You have certain data protection rights, including the right to: be informed about the purposes for which your personal data are processed; access your personal data; stop direct marketing; restrict the processing of your personal data; have incomplete or inaccurate personal data corrected; ask us to stop processing your personal data; be informed of a personal data breach (unless the breach is unlikely to be prejudicial to you); complain to the Data Protection Ombudsman; and require

The Asset Overview page includes data from all accounts, while the spot cost price and PnL data are calculated based on the specific data from the trading account. For instance, assets in the funding account do not affect the calculation of spot cost price and PnL, only the assets in the trading account could be included in the calculation. The highlighted sections on the pages below will be phased out.

If you carry out multiple trading strategies, including spot trading, bot trading, options trading, or other non-lead contract trading, data from these trades will be removed from your PnL calculation and your lead trade data and PnL curve will change.

However, this approach resulted in the inclusion of data from non-lead contract trading, spot trading, bot trading, and option trading in the PnL calculations, making it difficult to specifically measure lead trade data.