Margin Details

Balance Description Update Frequency
Margin Debit A margin debit indicates the amount you owe Fidelity based on margin trade executions. If there is cash in your Core, a journal would take place on settlement date to reduce this debit balance. If there was not enough cash in the Core, you would start paying margin interest on this value at settlement. Intraday
Cash (core) Account settlement position for trade activity and money movement, including core and other eligible additional Fidelity money markets. Executed Buy orders and cash withdrawals will reduce the Core, and executed Sell orders and cash deposits will increase the Core. Overnight
Margin Interest Rate This is the most recent margin interest rate that is applicable to your account. This rate is calculated by combining Fidelity's base rate with a rate related to the size of your account's margin debit balance. Overnight
Daily Margin Interest Accrued The daily margin interest accrued is based on the previous business day's margin balance and refers to interest applicable for that day.
When the previous business day is a Friday or the day preceding a market holiday, interest is accrued forward. As such, in a typical week, the number shown on Saturday morning will account for interest accrued for Friday, Saturday, and Sunday.
Overnight
Margin Interest Accrued (month to date) The total amount of interest accrued during the month. Interest rate periods run for 30 calendar days beginning on the 21st of each month until the 20th of the next month. However, changes in the Fidelity base rate accompanying the Fed rate changes always mark the end of a calculation period. Overnight

Real-Time, Intraday, and Overnight

Additional Details

For more detailed information about your account balances, you can expand the balances table by clicking Show All or you can expand an individual section by clicking the "+" sign to the left of any section name , or just clicking the name of the section. When the table is expanded for a detailed view of individual balance fields, the "+" sign becomes a "-" sign that you can click to collapse the table and return to the summary view. If all the sections of the balances table have been expanded (because you either clicked Show All or expanded each section individually), you can collapse the table and return to the summary view by clicking either Hide All or the "-" sign to its left.

Positive/Negative and Credit/Debit