Question 1

How is my profit and loss calculated?

Accepted Answer

We provide several different profit and loss (P&L) and price calculations shown below.

Daily P&L (shown in base currency): ((Position Now * Current Market Price) - (Position * Price at Reset Time) + (Net Traded Amount) ) * Daily exchange rate to the base currency. This value shows the change in the market value of your open position relative to a reset time (details below). Please note that Daily P&L uses the time zone of the specific instrument, and…

Question 2

Why is my realized P&L different in TWS than my statement?

Accepted Answer

Interactive Brokers trading platforms use Average Cost Accounting when calculating Realized P&L and your cost price (average price) is synced to your statement once every evening. Your statements, however, will use the tax lot matching method you have selected…

Question 3

Why is my daily P&L wrong in TWS?

Accepted Answer

Daily P&L is your profit or loss for the day since prior Close of each instrument in the portfolio. The Daily P&L is reset daily based on the following:

P&L of an instrument that closes today and reopens tomorrow will be reset 5 minutes before midnight based on the exchange time zone…

Question 4

What should I do if my position's P&L is showing as "N/A"?

Accepted Answer

First, try to log out and back into the trading platform. If the problem persists, please contact IBKR Client Services…

Question 5

How is realized P&L (Profit and Loss) calculated for a short position after a reverse stock split?

Accepted Answer

Calculating realized P&L for a short position after a reverse stock split can be a bit complex due to the nature of short selling and the effects of a reverse split. Here is a detailed explanation of how to calculate it:

Determine the total pre-split cost basis…

Question 6

How can I display unrealized P&L in percentage in TWS?

Accepted Answer

Within your Portfolio in TWS, right-click on the column header Unrealized P&L and select one of the following display options:

Display Value: show absolute values
Display Percentage: show percentage values…

Question 7

What's the difference between Mark Price and Last Price?

Accepted Answer

The Mark Price is used to value the contract by IBKR's credit system and to keep your account values such as Net Liquidation Value, Equity with Loan Value, Excess Equity and Available Funds updated in real time. In addition, the Mark Price is used for the projected Daily P&L and Unrealized P&L values displayed on the trading screen…

Question 8

How can I see P&L on each trade separately, and not just an average?

Accepted Answer

To see P&L per trade, add the "Realized P&L" field to the Trades window (in Mosaic, it is a tab on the Activity panel; in Classic, click Trade Log from the Account menu). This field shows the total P&L on the trade, and if you use the "+" sign to view each fill you will see the P&L for each fill on that trade. …

Question 9

Do I get real-time P&L without a market data subscription?

Accepted Answer

Unrealized P&L and Daily P&L are calculated in real-time, regardless of whether or not you are subscribed to real-time market data.

Additional Information…

P&L Calculations