When you check your account balance at your bank, it will show the amount of cash you have stored with the bank.
If you have pending transactions, your account balance might be greater than the amount that is actually available to you. That is because the money needed to make those transactions has not yet been removed from your account.
An account balance with a brokerage is likely to look different from a bank account balance. That’s because you don’t just keep cash with a broker.
Instead, the account balance that you see when you check your brokerage account will be the sum of any cash you hold and any stocks you have bought.
Because the value of stocks changes all the time, your account balance will also vary more frequently with stockbroker than a bank.