CME Group (CME) call put ratio 2 calls to 1 put with a focus on September 230 calls

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CME Group Inc. (NASDAQ: CME) Delayed: 278.23 --0 (-0%)
Previous Close $278.23    52 Week High $117.80 
Open $278.23    52 Week Low $81.87 
Day High $278.23    P/E 95.28 
Day Low $278.23    EPS $2.92 
Volume 182