Product Modification Summary: Reduced Tick for Option Spreads on Standard and Poor’s 500 Stock Price Index Futures Contracts (Open Outcry and CME ClearPort) - Effective June 26, 2017
To
Clearing Member Firms; Back Office Managers
From
CME Clearing
#
17-229
Notice Date
19 June 2017
Effective Date
26 June 2017
Half-Tick Threshold Available for Option Spreads on Standard and Poor’s 500 Stock Price Index Futures Contracts (Open Outcry and CME ClearPort).