The shift in the PMM assignment for bin 8 follows Citadel Derivatives Group's recent purchase of the PMM from Adirondack Trading Partners LLC, which had leased the PMM rights to Morgan Stanley & Co.
Morgan Stanley will continue to serve as PMM in bin 10 and as CMM in bins 1, 2, 3, 4, 5, 6, 7, 8 and 9. Citadel serves as CMM in bins 1, 2, 3, 4, 5, 6, 7, 9 and 10.
"ISE is pleased to add another high-caliber PMM to an already strong list of world-class liquidity providers. Citadel Derivatives Group has distinguished itself ever since it joined ISE as a Competitive Market Maker in August 2002. We are confident that as a PMM, Citadel will further leverage its advanced trading systems and expertise making high-quality markets to enhance the ISE trading experience," said Gary Katz, ISE's Chief Operating Officer.