On August 24th, NYSE Regulation advised members of recent amendments to NYSE and NYSE Amex Equities Rule 15 (Pre-Opening Indications). The amendments clarify the use of the last reported sale on the exchanges as the reference price for pre-opening indications; and define the reference price of a security in the event that there is no last reported sale in that security on the exchanges. The amendments are effective September 5, 2010. NYSE Regulation Information Memo 10-38.