LPGA Commissioner Michael Whan announced on March 7 , 2011 , that CME had signed a three - year contract to sponsor the tournament .
The title sponsor is the CME Group , a financial securities corporation based in Chicago .
LPGA Commissioner Michael Whan announced on March 7 , 2011 , that corporation had signed a three - year contract to sponsor the tournament .
The title sponsor is the CME Group , a financial securities corporation based in Chicago .