MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

AQR CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001167557)

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

Q4 2025

Shares 2,558,097 Value ($000) $463,655 Avg Close $169.50 Range $154.80 - $183.58

Q3 2025

Shares 951,088 Value ($000) $165,727 Avg Close $193.45 Range $172.51 - $222.19

Q2 2025

Shares 758,462 Value ($000) $167,195 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 129,508 Value ($000) $28,019 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 94,205 Value ($000) $21,294 Avg Close $257.54 Range $220.08 - $289.94

Q3 2024

Shares 15,027 Value ($000) $3,850 Avg Close $228.65 Range $187.70 - $258.10

Q2 2024

Shares 19,264 Value ($000) $3,863 Avg Close $200.47 Range $187.45 - $222.81

Q1 2024

Shares 20,519 Value ($000) $4,499 Avg Close $228.96 Range $194.52 - $282.26

Q4 2023

Shares 40,433 Value ($000) $11,841 Avg Close $233.72 Range $195.99 - $288.33

Q3 2023

Shares 41,993 Value ($000) $8,836 Avg Close $233.55 Range $192.90 - $268.22

Q2 2023

Shares 13,393 Value ($000) $3,501 Avg Close $286.65 Range $245.65 - $383.62

Q1 2023

Shares 10,836 Value ($000) $4,199 Avg Close $339.53 Range $266.01 - $381.21

Q4 2022

Shares 22,018 Value ($000) $6,141 Avg Close $246.25 Range $210.55 - $283.35

Q3 2022

Shares 36,752 Value ($000) $8,177 Avg Close $244.83 Range $207.63 - $267.12

Q2 2022

Shares 7,137 Value ($000) $1,827 Avg Close $260.22 Range $237.15 - $332.85

Q1 2022

Shares 6,877 Value ($000) $2,340 Avg Close $344.01 Range $304.48 - $391.34

Q4 2021

Shares 6,389 Value ($000) $2,628 Avg Close $373.74 Range $323.75 - $410.92

Q3 2021

Shares 14,401 Value ($000) $6,058 Avg Close $434.10 Range $386.93 - $472.28

Q2 2021

Shares 17,760 Value ($000) $8,233 Avg Close $449.61 Range $407.56 - $515.46

Q1 2021

Shares 32,195 Value ($000) $16,031 Avg Close $503.06 Range $444.56 - $555.48

Q4 2020

Shares 33,178 Value ($000) $18,693 Avg Close $513.28 Range $445.05 - $571.70

Q3 2020

Shares 30,908 Value ($000) $14,885 Avg Close $465.37 Range $409.02 - $528.32

Q2 2020

Shares 27,224 Value ($000) $13,612 Avg Close $438.02 Range $297.02 - $495.82

Q1 2020

Shares 27,108 Value ($000) $9,015 Avg Close $327.01 Range $258.83 - $365.21

Q4 2019

Shares 28,528 Value ($000) $10,815 Avg Close $343.80 Range $297.75 - $386.27

Q3 2019

Shares 18,204 Value ($000) $5,913 Avg Close $335.01 Range $297.39 - $394.69

Q2 2019

Shares 65,772 Value ($000) $21,140 Avg Close $270.14 Range $225.08 - $320.72

Q1 2019

Shares 62,096 Value ($000) $15,281 Avg Close $211.23 Range $192.59 - $233.31

Q4 2018

Shares 64,088 Value ($000) $13,542 Avg Close $192.62 Range $159.95 - $215.45

Q3 2018

Shares 40,741 Value ($000) $7,272 Avg Close $178.37 Range $164.65 - $196.55

Q2 2018

Shares 43,916 Value ($000) $8,689 Avg Close $192.09 Range $180.81 - $204.01

Q1 2018

Shares 51,787 Value ($000) $11,261 Avg Close $190.22 Range $171.07 - $212.71

Q4 2017

Shares 52,268 Value ($000) $10,545 Avg Close $174.10 Range $158.03 - $190.10

Q3 2017

Shares 120,157 Value ($000) $22,170 Avg Close $176.21 Range $159.36 - $192.97

Q2 2017

Shares 288,516 Value ($000) $58,021 Avg Close $176.15 Range $163.16 - $194.23

Q1 2017

Shares 339,797 Value ($000) $63,709 Avg Close $166.41 Range $135.53 - $184.55

Q4 2016

Shares 289,330 Value ($000) $42,508 Avg Close $145.60 Range $133.06 - $158.12

Q3 2016

Shares 125,745 Value ($000) $20,822 Avg Close $148.56 Range $129.96 - $163.14

Q2 2016

Shares 82,869 Value ($000) $12,049 Avg Close $121.40 Range $107.26 - $133.06

Q1 2016

Shares 58,679 Value ($000) $7,325 Avg Close $104.04 Range $89.17 - $116.19

Q4 2015

Shares 25,197 Value ($000) $2,812 Avg Close $92.99 Range $78.27 - $105.44

Q3 2015

Shares 10,185 Value ($000) $946 Avg Close $87.71 Range $79.52 - $94.87

Q2 2015

Shares 13,720 Value ($000) $1,273 Avg Close $79.87 Range $74.17 - $89.60

Q1 2015

Shares 9,852 Value ($000) $817 Avg Close $71.51 Range $59.68 - $80.40

Q4 2014

Shares 6,552 Value ($000) $470 Avg Close $59.29 Range $54.38 - $66.53

Q3 2014

Shares 28,652 Value ($000) $1,772 Avg Close $50.63 Range $42.39 - $56.56

Q2 2014

Shares 67,652 Value ($000) $3,657 Avg Close $48.96 Range $44.53 - $53.88

Q1 2014

Shares 31,252 Value ($000) $1,851 Avg Close $55.22 Range $51.55 - $60.27

Q4 2013

Shares 33,352 Value ($000) $2,230 Avg Close $58.63 Range $53.33 - $63.89

Q3 2013

Shares 21,048 Value ($000) $1,264 Avg Close $47.53 Range $41.58 - $55.43

Q2 2013

Shares 10,148 Value ($000) $474 Avg Close $38.12 Range $32.31 - $42.94

Q4 2012

Shares 14,248 Value ($000) $503 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,558,097	$463,655	$169.50	$154.80 - $183.58
Q3 2025	951,088	$165,727	$193.45	$172.51 - $222.19
Q2 2025	758,462	$167,195	$216.56	$190.86 - $229.08
Q1 2025	129,508	$28,019	$206.23	$183.82 - $224.26
Q4 2024	94,205	$21,294	$257.54	$220.08 - $289.94
Q3 2024	15,027	$3,850	$228.65	$187.70 - $258.10
Q2 2024	19,264	$3,863	$200.47	$187.45 - $222.81
Q1 2024	20,519	$4,499	$228.96	$194.52 - $282.26
Q4 2023	40,433	$11,841	$233.72	$195.99 - $288.33
Q3 2023	41,993	$8,836	$233.55	$192.90 - $268.22
Q2 2023	13,393	$3,501	$286.65	$245.65 - $383.62
Q1 2023	10,836	$4,199	$339.53	$266.01 - $381.21
Q4 2022	22,018	$6,141	$246.25	$210.55 - $283.35
Q3 2022	36,752	$8,177	$244.83	$207.63 - $267.12
Q2 2022	7,137	$1,827	$260.22	$237.15 - $332.85
Q1 2022	6,877	$2,340	$344.01	$304.48 - $391.34
Q4 2021	6,389	$2,628	$373.74	$323.75 - $410.92
Q3 2021	14,401	$6,058	$434.10	$386.93 - $472.28
Q2 2021	17,760	$8,233	$449.61	$407.56 - $515.46
Q1 2021	32,195	$16,031	$503.06	$444.56 - $555.48
Q4 2020	33,178	$18,693	$513.28	$445.05 - $571.70
Q3 2020	30,908	$14,885	$465.37	$409.02 - $528.32
Q2 2020	27,224	$13,612	$438.02	$297.02 - $495.82
Q1 2020	27,108	$9,015	$327.01	$258.83 - $365.21
Q4 2019	28,528	$10,815	$343.80	$297.75 - $386.27
Q3 2019	18,204	$5,913	$335.01	$297.39 - $394.69
Q2 2019	65,772	$21,140	$270.14	$225.08 - $320.72
Q1 2019	62,096	$15,281	$211.23	$192.59 - $233.31
Q4 2018	64,088	$13,542	$192.62	$159.95 - $215.45
Q3 2018	40,741	$7,272	$178.37	$164.65 - $196.55
Q2 2018	43,916	$8,689	$192.09	$180.81 - $204.01
Q1 2018	51,787	$11,261	$190.22	$171.07 - $212.71
Q4 2017	52,268	$10,545	$174.10	$158.03 - $190.10
Q3 2017	120,157	$22,170	$176.21	$159.36 - $192.97
Q2 2017	288,516	$58,021	$176.15	$163.16 - $194.23
Q1 2017	339,797	$63,709	$166.41	$135.53 - $184.55
Q4 2016	289,330	$42,508	$145.60	$133.06 - $158.12
Q3 2016	125,745	$20,822	$148.56	$129.96 - $163.14
Q2 2016	82,869	$12,049	$121.40	$107.26 - $133.06
Q1 2016	58,679	$7,325	$104.04	$89.17 - $116.19
Q4 2015	25,197	$2,812	$92.99	$78.27 - $105.44
Q3 2015	10,185	$946	$87.71	$79.52 - $94.87
Q2 2015	13,720	$1,273	$79.87	$74.17 - $89.60
Q1 2015	9,852	$817	$71.51	$59.68 - $80.40
Q4 2014	6,552	$470	$59.29	$54.38 - $66.53
Q3 2014	28,652	$1,772	$50.63	$42.39 - $56.56
Q2 2014	67,652	$3,657	$48.96	$44.53 - $53.88
Q1 2014	31,252	$1,851	$55.22	$51.55 - $60.27
Q4 2013	33,352	$2,230	$58.63	$53.33 - $63.89
Q3 2013	21,048	$1,264	$47.53	$41.58 - $55.43
Q2 2013	10,148	$474	$38.12	$32.31 - $42.94
Q4 2012	14,248	$503	—	—