How can I preview the margin impact of closing a position in TWS/Mosaic?

To preview the margin impact of closing a position in Trader Workstation (TWS) or Mosaic, follow these steps:

  1. Right-click on any data line with a position in your TWS/Mosaic interface.
  2. Navigate to "Contract Info" in the context menu that appears.
  3. Left-click on "Show Margin Impact" within the Contract Info submenu.
  4. A pop-up window will open, displaying the impact on your margin requirements. The message will read: "Closing out this position would have the following impact on your margin requirements."
  5. In the pop-up window, focus on the "Change" column, particularly on the Initial Margin line. This will show you the specific impact on your margin requirements.

Understanding the "Change" column:

  • A positive number indicates an increase in margin requirements.
  • A negative number indicates a decrease in margin requirements.

This feature is particularly useful as it helps you understand how closing a position will affect your account's margin balance before you take any action. It allows you to make more informed decisions about managing your positions and margin requirements.

Additional Information

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