About Negative Balance

Negative Balance Protection System

Standard Account

Pro Spread Account

Mass Standard Account

Zero-Cutting System Adopted
to control the loss

For Standard / Pro Spread / MASS Standard accounts, the negative balances will be automatically reset before your next deposit based on the replenishment rules. However, if any illegal transaction is found, the no margin call (zero-cut) will not be applicable.

POINTWhat Is a Margin Call?

A margin call is the broker's demands that an investor deposits additional money when account balance goes minus, so that the negative balance is brought up to zero.

Zero-Cutting System is a method that BigBoss will pay additional margin to return the negative balance to zero.

Customers are able to enjoy trading since there is no further risk to pay additional margin.

*Please note that if you make a deposit while holding an open position, it will be reflected in your account without the Zero-Cutting System.

Margin Call

More loss than the deposit
$5,000 loss
When $3,000 loss happens,
the total loss goes up to $5,000...

Negative Balance Protection

More loss than the deposit
$2,000 loss
Zero-Cutting System controls the loss
within the deposit amount.

Replenishment + Zero-Cutting System Rules

◆Eligible Accounts

Standard / Pro Spread / MASS Standard
*The current account-by-account Zero-Cutting System will remain unchanged and apply on Premier accounts ONLY.
(If you have credits, credits will be allotted for the replenishment first.)


Automatic replenishment is performed daily at 11:00 and 23:00 (GMT+0).
The balance will be automatically replenished from other accounts with balance. Please adjust the balance of your accounts before the replenishment.
*The above is the start time of processing. It may takes several hours to complete the process depending on the number of cases.
*If there are open positions with unrealized profit, the zero-cutting system is not applicable in which the negative balance can be reduced by closing the position.

◆Replenishment Rules
  • Funds allocated for replenishment are only from the balance of the eligible accounts listed above.
    *Funds allocated for replenishment are prioritized from the balance. When valid balance is no longer available, credit will be allotted.
  • If you have multiple accounts with valid balance (or credit),
    ①Account in the same currency as the account to be replenished will be prioritized for replenishment.
    ②Account with the highest balance will be prioritized for replenishment.
    ③When all balances are exhausted, account with the highest credit will be prioritized for replenishment.
  • If there are more than one account with the "same amount" of valid balance (or credit), the account with the oldest opening date will be prioritized for replenishment.
    *Even if there are open positions in the account, it will also be allocated for replenishment.
  • If there is more than one account with a negative balance, the accounts with the largest negative amount will be subject to replenishment first.
  • If an account balance remains negative after all positive account balances have been used, and if only one account is held, a zero-cut will be executed and we will bear the cost of the cut.
E.g.: If you hold 4 accounts,

Account A = Minus JPY 2,000,000 (Credit JPY 20,000)
Account B = Plus JPY 300,000 (Credit JPY 50,000)
Account C = Plus JPY 150,000 (Credit JPY 100,000)
Account D = Plus USD 10,000 (No Credit) *for USDJPY: 135

The replenishment of Account A with minus JPY 2,000,000 will be performed in the following order:

Balance of JPY 300,000 in Account B will be used
Balance of JPY 150,000 in Account C will be used
Balance of USD 10,000 (JPY 1,350,000) in Account D will be used
Credit of JPY 100,000 in Account C will be used
Credit of JPY 50,000 in Account B will be used
Credit of JPY 20,000 in Account A will be used
The remaining negative balance of JPY 30,000 will be zero-cut


  • If any of your Standard / Pro Spread / MASS Standard / CRYPTOS (all currency) accounts has a negative balance, you will not be able to withdraw from other accounts with balance.
    *Withdrawals from CRYPTOS accounts are also not allowed.
  • Even if the replenishment will lead to a stop out in the account with open positions, the replenishment will also be performed. Please be sure to manage the funds in your account carefully.
    *We assume no responsibility for any stop out caused by the replenishment.
※Find the FAQ (Frequently Asked Questions) here about Replenishment+Zero-cut.