Cboe Global Markets (CBOE) call put ratio 3.3 calls to 1 put with a focus on January 540 calls

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CBOE HLDGS (NYSE: CBOE) Delayed: 285.07 +0.21 (0.07%)
Previous Close $284.86    52 Week High $72.53 
Open $285.08    52 Week Low $58.43 
Day High $286.25    P/E 143.25 
Day Low $281.34    EPS $1.99 
Volume 646,576