Maintenance margin is the minimum amount of equity that must be maintained in a margin position.
FINRA requires a 25% minimum on all symbols, but our clearing firm may require a higher maintenance requirement on specific symbols.
The reason for a higher maintenance requirement is due to the perceived volatility of a position. Utilizing positions with high maintenance requirements may potentially reduce the amount of credit you can borrow. You can find the maintenance requirement for a symbol through the research tab or within your portfolio slice.