The "Last Size Extra Decimal" feature controls how Last Size values are displayed across platforms. By default, Last Size values are displayed as integers. When configured, the feature formats Last Size values to a specified number of decimal places, giving users greater precision in how trade size data appears in the interface. This feature is effective starting February 23, 2026.
Additional Information
- Where can I configure the "Last Size Extra Decimal" setting?
- What is the default behavior of "Last Size Extra Decimal"?
- What values can I set for "Last Size Extra Decimal"?
- Does the "Last Size Extra Decimal" setting apply in Client Portal (CP)?
- How can I see the unformatted Last Size value?
- What is the “Last Size Extra Decimal” ON/OFF toggle in Client Portal, and what does it do?
- If I change the "Last Size Extra Decimal" setting in Trader Workstation, will it immediately affect IBKR Desktop and Client Portal?
- How do I turn off decimal formatting and return to integer display?
- Where in the settings can I find the "Last Size Extra Decimal" option?