c0e205a4_d_Questions___Data___FINRA_org__Field_Name
[Description] The total dollar value of maintenance margin calls in customer accounts maintained by the correspondent or self-clearing firm, that are aged more than 5 business days past the initial call date as of the "processed date." [Questions & Responses] What is the definition of a FINRA Call? Are you referring to internal 'house maintenance requirements? This term refers to required maintenance margin calls under NYSE and / or FINRA rules. These requirements may differ from "house" maintenance calls. [Field Name] 
Aged Maintenance Margin Calls (NYSE and FINRA)
Insite Frequently Asked Questions - Data | FINRA.org