CBOE GLOBAL MKTS INC

Ticker: CBOE CUSIP: 12503M108 Class: COM

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2025

Shares 1,500 Value ($000) $377 Avg Close $248.74 Range $231.60 - $262.98

Q3 2025

Shares 1,500 Value ($000) $368 Avg Close $240.25 Range $227.43 - $255.27

Q2 2025

Shares 1,500 Value ($000) $350 Avg Close $222.22 Range $200.32 - $235.37

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,500	$377	$248.74	$231.60 - $262.98
Q3 2025	1,500	$368	$240.25	$227.43 - $255.27
Q2 2025	1,500	$350	$222.22	$200.32 - $235.37