CBOE HOLDINGS INC

CUSIP: 12503m108 Class: COM

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

InstitutionSharesValue ($000)
BAHL & GAYNOR INC342,860$86,058
ISTHMUS PARTNERS, LLC61,367$15,403
FRANKLIN STREET ADVISORS INC /NC14,628$3,672
BERKSHIRE ASSET MANAGEMENT LLC/PA1,535$385
Total (4 institutions)420,390$105,518