itunix offers two asset modes for futures trading: Single-asset mode and Multi-assets mode.

In the single-asset mode, only USDT is used as the margin, while in the multi-assets mode, you can use other tokens as the margin for USDT-M futures trading.

In single-asset mode, the discount rate for these assets is calculated as 0, meaning they are not converted into margin but can be freely transferred.

In multi-assets mode, all supported tokens can be used as margin. The way to use them as margin is by converting the value of the token into USDT using a discount rate. Each token has its corresponding discount rate table, which can be viewed in Market Information -> Multi-assets mode -> "Discount Rate" section.

For example, the discount rate for BTC is shown in the table below:

Assuming the index price of BTC is 60,000, and the user deposits 10 BTC into the futures account. The value of the account at the index price would be 60,000 × 10 = 600,000 USDT. Under the multi-assets mode, the margin value would be calculated as: 100,000 × 0.975 + 400,000 × 0.97 + 100,000 × 0.965 = 582,000 USDT.