The account mode determines the gains and losses, as well as the risk offset. Differences across account modes only happen in cross margin mode. Isolated margin mode means isolating a portion of the assets, with no differences across different account modes.
Margin free mode
You can trade spot or long options.
Single-currency cross margin mode
You can trade spot, margin, expiry futures, perpetual futures, and options using a single account by transferring your assets into the cross margin account.
All settled cross margin positions in the same currency share a common margin balance, offsetting resulting profits and losses.
Multi-currency cross margin mode
Under this mode, you can trade with all instruments, including spot, margin, expiry futures, perpetual futures, and options, after you deposit assets to your multi-currency margin account.
The USD value of your assets is used to calculate margin for placing orders and holding positions
When using auto-borrow, if the balance or equity of a certain currency in your account is insufficient while its equivalent value in USD is sufficient, you can continue selling assets in this currency through spot trading, or trade the derivatives that are settled in this currency. When a certain currency's equity is less than 0 due to being oversold or the loss of contracts that are settled in this currency, the liability and the corresponding interest of this currency will be generated automatically.
Portfolio margin mode
Portfolio margin mode allows you to trade spot, margin, perpetual futures, expiry futures, and options with one account and uses a risk-based model that determines margin requirements. Click here to learn more.