MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

Callahan Advisors, LLC's Holding History (CIK: 0001395055)

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

Q2 2025

Shares 5,500 Value ($000) $1,228 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 5,500 Value ($000) $1,190 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 5,503 Value ($000) $1,244 Avg Close $257.54 Range $220.08 - $289.94

Q3 2024

Shares 5,503 Value ($000) $1,410 Avg Close $228.65 Range $187.70 - $258.10

Q2 2024

Shares 5,503 Value ($000) $1,104 Avg Close $200.47 Range $187.45 - $222.81

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	5,500	$1,228	$216.56	$190.86 - $229.08
Q1 2025	5,500	$1,190	$206.23	$183.82 - $224.26
Q4 2024	5,503	$1,244	$257.54	$220.08 - $289.94
Q3 2024	5,503	$1,410	$228.65	$187.70 - $258.10
Q2 2024	5,503	$1,104	$200.47	$187.45 - $222.81