Order Approving a Proposed Rule Change To Amend NYSE Arca Rule 1.1(ll) To Modify the Formula for Establishing the Official Closing Price for a Derivative Securities Product When There Is No Closing Auction or if the Closing Auction Is Less Than One Round Lot, by Excluding the NBBO Midpoint if the Midpoint Multiplied by 10% Is Less Than the NBBO Spread or if the NBBO Is Crossed