Notice to Members 07-24

New Requirement for the Reporting of Consolidated Short Interest Positions to the Intermarket Surveillance Group (ISG);

Effective September 2007

This Notice to Members advises member firms that, effective September 2007, they are required to increase the frequency of short interest reporting from monthly to twice a month.1 Attachment A outlines the revised Short Interest Reporting Schedule for September 2007 through December 2007. Additionally, the short interest reporting rules of certain ISG self-regulatory organizations (SROs) are included as Attachment B.

1 See Securities Exchange Act Release No. 55406 (March 6, 2007), 72 FR 11071 (March 12, 2007) (order approving SR-NASD-2006-131, SR-NYSE-2006-111, SR-Amex-2007-005).