CBOE GLOBAL MKTS INC

Ticker: CBOE CUSIP: 12503M108 Class: COM

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014

Shares 87,119 Value ($000) $4,931 Avg Close $45.89 Range $41.21 - $50.84

Q4 2013

Shares 98,164 Value ($000) $5,101 Avg Close $42.59 Range $37.85 - $46.22

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	87,119	$4,931	$45.89	$41.21 - $50.84
Q4 2013	98,164	$5,101	$42.59	$37.85 - $46.22