U.S. Options

Effective for trading on Friday, February 27, 2015, Citadel Securities, LLC will assume the duties of Primary Lead Market Maker...

Effective for trading on Friday, February 27, 2015, Group One Trading, L.P. will assume the duties of Primary Lead Market...

Effective March 1, 2015, pending SEC approval, the MIAX Options Fee Schedule will be amended as follows: Establishment of an additional...

NPS Pharmaceuticals, Inc. (NPSP) will be de-listed from the MIAX Options Exchange effective prior to the opening of business on...

MIAX Regulatory Circular 2015-12 identifies an option class to be included in the MIAX Penny Pilot Program starting on Monday,...

MIAX Regulatory Circular 2015-11 identifies newly listed option classes that will start trading at MIAX on Monday, February 23, 2015,...

The option classes listed below will begin trading on the MIAX Options Exchange on Monday, February 23, 2015. ISHARES MSCI ACWI...

Centene Corporation (CNC) has announced a 2 for 1 stock split.  Associated strike price adjustments will become effective at the...