On April 1st, the SEC granted immediate effectiveness to NASDAQ OMX PHLX's proposal to amend Rule 1080, Commentary .07, to provide for an Order Price Protection feature on Phlx XL, the Exchange's enhanced electronic trading platform for options. OPP is a feature of the Phlx XL system that would prevent certain orders from executing or being placed on the book at prices outside pre-set standard limits. The system would reject such orders rather than executing them automatically. Comments should be submitted on or before April 29, 2010. SEC Release No. 34-61828.