In November 2013 CBOE launched Mini-SPX (ticker XSP) options with PM-settlement, and, as shown in the chart below, the maximum open interest for the XSP options has grown in all 12 months since the contract launch.
In the past month the XSP options hit an all-time high open interest of 292,227 contracts, and the XSP Index hit its all-time daily closing high level of 207.28 on November 26.
Key features of the Mini-SPX (XSP) options include —
CONTRACT SIZE AND ADDED FLEXIBILITY. Mini-SPX options[...]