An Equity Maintenance (EM) call occurs when a pattern day trader (PDT) account dips below $25,000 net value. PDT is a regulatory designation for investors that execute four or more day-trades in five business days. You can have the first PDT flag lifted through the app if you unintentionally exceed the day trades limit. Please note this is a one-time per 90 days service. If an account day trades with an open EM call, the account will be restricted to liquidate-stocks-only status for 90 days.