Margin call risk forecaster
What it does
Our margin call risk forecaster lets you estimate a potential margin call on your portfolio line of credit. It shows how much of a margin call you could face if your marginable portfolio value dropped by a chosen percentage.
Using the forecaster
Move the slider to adjust the hypothetical drop and see the corresponding margin call amount. If the hypothetical drop results in a margin call, the forecaster estimates the cash deposit needed to satisfy it.

Keep in mind
- This tool only applies to your portfolio line of credit; it doesn't apply to long short direct indexing strategies.
- The forecaster shows what would happen if your portfolio's value dropped on the specific day you use it. Your portfolio value can change at any time, and your stock's margin requirement is also subject to change.
- Borrowing on margin increases your investing risk, including the potential to lose more than you invested. Review our margin disclosure before borrowing.