c0e205a4_d_Questions___Data___FINRA_org__Field_Name
[Description] The number of customer accounts with uncovered short equity positions maintained for the correspondent or self-clearing firm on the "processed date." [Questions & Responses] We assume that the definition of short position is one that results from a bonafide "short sale." Is this assumption correct? Yes We assume that customers who sell short against the box are included in this count. Is this assumption correct? Yes. We assume that this data element would not include short options and bonds. Is this assumption correct? Yes. [Field Name] 
Short Interest Accounts
Insite Frequently Asked Questions - Data | FINRA.org