When Mirror Mode is off:

If you hold more funds than the Leader, your maximum trade amount will not exceed the Leader’s maximum trade amount. For example, if your Leader’s full balance is $200, but your balance is $900, you will only trade $200 of your balance.

When Mirror Mode is on:

You will use your full balance to trade, trading with the same ratios as the Leader. For example, if your Leader’s full balance is $10 while yours is $1,000, you would trade the entire $1,000. Then, if the Leader trades $5, you would trade $500, matching the ratio. We recommend using Mirror Mode only when you fully understand the possible risks. Mirror Mode options cannot be changed once Copy Trading has started.