If applicable, a Margin Call summary section will appear at the top of the Balances tool. It contains a number of details about the types, amounts, and due dates of your outstanding margin calls. These details include:
Margin calls due today
Total margin calls due
Day trade calls due
Expand the summary section to display details of the margin calls by type and amount, including the impact of your actions and fluctuations in the market value of your positions on the calls since previous close. The list of calls is also broken down by type, date issued, date due, status, current amount, original amount, and amount due.