MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 288,742 Value ($000) $52,334 Avg Close $169.50 Range $154.80 - $183.58

Q3 2025

Shares 260,461 Value ($000) $45,385 Avg Close $193.45 Range $172.51 - $222.19

Q2 2025

Shares 250,037 Value ($000) $55,843 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 88,922 Value ($000) $19,238 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 83,668 Value ($000) $18,912 Avg Close $257.54 Range $220.08 - $289.94

Q3 2024

Shares 14,647 Value ($000) $3,753 Avg Close $228.65 Range $187.70 - $258.10

Q2 2022

Shares 1,811 Value ($000) $464 Avg Close $260.22 Range $237.15 - $332.85

Q2 2021

Shares 55,977 Value ($000) $25,950 Avg Close $449.61 Range $407.56 - $515.46

Q1 2021

Shares 106,601 Value ($000) $53,079 Avg Close $503.06 Range $444.56 - $555.48

Q4 2020

Shares 152,714 Value ($000) $87,132 Avg Close $513.28 Range $445.05 - $571.70

Q3 2020

Shares 187,330 Value ($000) $90,216 Avg Close $465.37 Range $409.02 - $528.32

Q2 2020

Shares 104,498 Value ($000) $52,345 Avg Close $438.02 Range $297.02 - $495.82

Q1 2020

Shares 169,169 Value ($000) $56,261 Avg Close $327.01 Range $258.83 - $365.21

Q4 2019

Shares 294,883 Value ($000) $111,793 Avg Close $343.80 Range $297.75 - $386.27

Q3 2019

Shares 181,319 Value ($000) $59,382 Avg Close $335.01 Range $297.39 - $394.69

Q2 2019

Shares 186,816 Value ($000) $60,046 Avg Close $270.14 Range $225.08 - $320.72

Q1 2019

Shares 181,709 Value ($000) $44,715 Avg Close $211.23 Range $192.59 - $233.31

Q4 2018

Shares 220,438 Value ($000) $46,581 Avg Close $192.62 Range $159.95 - $215.45

Q3 2018

Shares 281,411 Value ($000) $50,229 Avg Close $178.37 Range $164.65 - $196.55

Q2 2018

Shares 243,611 Value ($000) $48,201 Avg Close $192.09 Range $180.81 - $204.01

Q1 2018

Shares 138,788 Value ($000) $30,178 Avg Close $190.22 Range $171.07 - $212.71

Q4 2017

Shares 186,182 Value ($000) $37,562 Avg Close $174.10 Range $158.03 - $190.10

Q3 2017

Shares 422,996 Value ($000) $78,047 Avg Close $176.21 Range $159.36 - $192.97

Q2 2017

Shares 391,796 Value ($000) $78,790 Avg Close $176.15 Range $163.16 - $194.23

Q1 2017

Shares 353,396 Value ($000) $66,258 Avg Close $166.41 Range $135.53 - $184.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	288,742	$52,334	$169.50	$154.80 - $183.58
Q3 2025	260,461	$45,385	$193.45	$172.51 - $222.19
Q2 2025	250,037	$55,843	$216.56	$190.86 - $229.08
Q1 2025	88,922	$19,238	$206.23	$183.82 - $224.26
Q4 2024	83,668	$18,912	$257.54	$220.08 - $289.94
Q3 2024	14,647	$3,753	$228.65	$187.70 - $258.10
Q2 2022	1,811	$464	$260.22	$237.15 - $332.85
Q2 2021	55,977	$25,950	$449.61	$407.56 - $515.46
Q1 2021	106,601	$53,079	$503.06	$444.56 - $555.48
Q4 2020	152,714	$87,132	$513.28	$445.05 - $571.70
Q3 2020	187,330	$90,216	$465.37	$409.02 - $528.32
Q2 2020	104,498	$52,345	$438.02	$297.02 - $495.82
Q1 2020	169,169	$56,261	$327.01	$258.83 - $365.21
Q4 2019	294,883	$111,793	$343.80	$297.75 - $386.27
Q3 2019	181,319	$59,382	$335.01	$297.39 - $394.69
Q2 2019	186,816	$60,046	$270.14	$225.08 - $320.72
Q1 2019	181,709	$44,715	$211.23	$192.59 - $233.31
Q4 2018	220,438	$46,581	$192.62	$159.95 - $215.45
Q3 2018	281,411	$50,229	$178.37	$164.65 - $196.55
Q2 2018	243,611	$48,201	$192.09	$180.81 - $204.01
Q1 2018	138,788	$30,178	$190.22	$171.07 - $212.71
Q4 2017	186,182	$37,562	$174.10	$158.03 - $190.10
Q3 2017	422,996	$78,047	$176.21	$159.36 - $192.97
Q2 2017	391,796	$78,790	$176.15	$163.16 - $194.23
Q1 2017	353,396	$66,258	$166.41	$135.53 - $184.55