Regulatory Notice 08-13

FINRA Consolidates the Collection of Short Interest Data; Effective Date: May 15, 2008

Executive Summary

Effective May 15, 2008, firms must report short interest positions in all securities-including NASDAQ, Amex, NYSE, ARCA and OTC equity securities-through a single source on a bi-monthly basis: FINRA's Web-based Regulation Filing Applications system ( Firms are reminded that they must designate each issue symbol contained in their short interest reports with the correct exchange/market code. Also effective May 15, 2008, the market/exchange code of "Z" (Other) will be eliminated and certain other market/exchange codes will be temporarily unavailable in RFA. To enable firms to test their program changes, FINRA will make the RFA test site available from April 14, 2008 through May 2, 2008.

Questions regarding this Notice may be directed to:

  • Legal Section, Market Regulation, at (240) 386-5126;
  • Office of General Counsel, at (202) 728-8071;
  • Yvonne Huber, Market Regulation, at (240) 386-5034; or
  • Michele Bowan, Market Regulation, at (240) 386-4986.


The effective date of the consolidation of the collection of short interest data has been extended to June 30, 2008. As a result, the testing period for these changes has been extended to June 3, 2008.