On September 13th, the SEC suspended a proposed rule change and instituted proceedings to determine whether to approve or disapprove a proposed rule change submitted by NASDAQ OMX BX. The Exchange proposed to amend the BOX Fee Schedule with respect to credits and fees for transactions in the BOX Price Improvement Period ("PIP"). The SEC believes that it is appropriate to evaluate the effect of the proposed rule change on competition among different types of market participants and on market quality, particularly with respect to the net fee differential that it would place on BOX Options Participants that respond to a PIP auction compared to a BOX Options Participant that initiated the PIP auction. Comments should be submitted within 45 days after publication in the Federal Register, which is expected during the week of September 19. SEC Release No. 34-65330.