IEX says stock exchanges should disclose more on data revenue

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CBOE HLDGS (NYSE: CBOE) Delayed: 310.45 -3.5 (1.11%)
Previous Close $313.95    52 Week High $72.53 
Open $315.00    52 Week Low $58.43 
Day High $316.82    P/E 156.01 
Day Low $307.41    EPS $1.99 
Volume 953,960       

IntercontinentalExchange Inc. (NYSE: ICE) Delayed: 162.33 +1.09 (0.68%)
Previous Close $161.24    52 Week High $287.02 
Open $162.41    52 Week Low $53.27 
Day High $162.96    P/E 21.30 
Day Low $161.36    EPS $7.62 
Volume 3,000,990       

NASDAQ OMX Group (NASDAQ: NDAQ) Delayed: 99.31 -0.04 (0.04%)
Previous Close $99.35    52 Week High $71.92 
Open $99.94    52 Week Low $54.62 
Day High $100.01    P/E 44.14 
Day Low $99.04    EPS $2.25 
Volume 2,528,958