MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

GW&K Investment Management, LLC's Holding History (CIK: 0001082917)

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

Q4 2025

Shares 30,579 Value ($000) $6 Avg Close $169.50 Range $154.80 - $183.58

Q3 2025

Shares 30,621 Value ($000) $5 Avg Close $193.45 Range $172.51 - $222.19

Q2 2025

Shares 144,016 Value ($000) $32 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 142,374 Value ($000) $31 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 142,643 Value ($000) $32 Avg Close $257.54 Range $220.08 - $289.94

Q3 2024

Shares 141,913 Value ($000) $36 Avg Close $228.65 Range $187.70 - $258.10

Q2 2024

Shares 134,926 Value ($000) $27 Avg Close $200.47 Range $187.45 - $222.81

Q1 2024

Shares 130,185 Value ($000) $29 Avg Close $228.96 Range $194.52 - $282.26

Q4 2023

Shares 133,851 Value ($000) $39 Avg Close $233.72 Range $195.99 - $288.33

Q3 2023

Shares 137,653 Value ($000) $29 Avg Close $233.55 Range $192.90 - $268.22

Q2 2023

Shares 142,437 Value ($000) $37 Avg Close $286.65 Range $245.65 - $383.62

Q1 2023

Shares 143,922 Value ($000) $56 Avg Close $339.53 Range $266.01 - $381.21

Q4 2022

Shares 143,054 Value ($000) $40 Avg Close $246.25 Range $210.55 - $283.35

Q3 2022

Shares 20,620 Value ($000) $4,588 Avg Close $244.83 Range $207.63 - $267.12

Q2 2022

Shares 10,029 Value ($000) $2,568 Avg Close $260.22 Range $237.15 - $332.85

Q1 2022

Shares 9,724 Value ($000) $3,308 Avg Close $344.01 Range $304.48 - $391.34

Q4 2021

Shares 2,135 Value ($000) $878 Avg Close $373.74 Range $323.75 - $410.92

Q3 2021

Shares 2,171 Value ($000) $913 Avg Close $434.10 Range $386.93 - $472.28

Q2 2021

Shares 2,184 Value ($000) $1,012 Avg Close $449.61 Range $407.56 - $515.46

Q1 2021

Shares 2,262 Value ($000) $1,126 Avg Close $503.06 Range $444.56 - $555.48

Q4 2020

Shares 68,751 Value ($000) $39,227 Avg Close $513.28 Range $445.05 - $571.70

Q3 2020

Shares 89,719 Value ($000) $43,208 Avg Close $465.37 Range $409.02 - $528.32

Q2 2020

Shares 99,863 Value ($000) $50,023 Avg Close $438.02 Range $297.02 - $495.82

Q1 2020

Shares 154,690 Value ($000) $51,445 Avg Close $327.01 Range $258.83 - $365.21

Q4 2019

Shares 147,220 Value ($000) $55,812 Avg Close $343.80 Range $297.75 - $386.27

Q3 2019

Shares 151,015 Value ($000) $49,458 Avg Close $335.01 Range $297.39 - $394.69

Q2 2019

Shares 170,045 Value ($000) $54,656 Avg Close $270.14 Range $225.08 - $320.72

Q1 2019

Shares 214,955 Value ($000) $52,896 Avg Close $211.23 Range $192.59 - $233.31

Q4 2018

Shares 235,943 Value ($000) $49,857 Avg Close $192.62 Range $159.95 - $215.45

Q3 2018

Shares 228,568 Value ($000) $40,797 Avg Close $178.37 Range $164.65 - $196.55

Q2 2018

Shares 230,125 Value ($000) $45,533 Avg Close $192.09 Range $180.81 - $204.01

Q1 2018

Shares 235,909 Value ($000) $51,296 Avg Close $190.22 Range $171.07 - $212.71

Q4 2017

Shares 219,735 Value ($000) $44,332 Avg Close $174.10 Range $158.03 - $190.10

Q3 2017

Shares 218,812 Value ($000) $40,373 Avg Close $176.21 Range $159.36 - $192.97

Q2 2017

Shares 570,484 Value ($000) $114,724 Avg Close $176.15 Range $163.16 - $194.23

Q1 2017

Shares 595,939 Value ($000) $111,733 Avg Close $166.41 Range $135.53 - $184.55

Q4 2016

Shares 607,530 Value ($000) $89,258 Avg Close $145.60 Range $133.06 - $158.12

Q3 2016

Shares 697,740 Value ($000) $115,539 Avg Close $148.56 Range $129.96 - $163.14

Q2 2016

Shares 660,904 Value ($000) $96,095 Avg Close $121.40 Range $107.26 - $133.06

Q1 2016

Shares 706,089 Value ($000) $88,141 Avg Close $104.04 Range $89.17 - $116.19

Q4 2015

Shares 791,964 Value ($000) $88,375 Avg Close $92.99 Range $78.27 - $105.44

Q3 2015

Shares 825,881 Value ($000) $76,708 Avg Close $87.71 Range $79.52 - $94.87

Q2 2015

Shares 869,766 Value ($000) $80,688 Avg Close $79.87 Range $74.17 - $89.60

Q1 2015

Shares 882,479 Value ($000) $73,158 Avg Close $71.51 Range $59.68 - $80.40

Q4 2014

Shares 968,111 Value ($000) $69,423 Avg Close $59.29 Range $54.38 - $66.53

Q3 2014

Shares 930,619 Value ($000) $57,568 Avg Close $50.63 Range $42.39 - $56.56

Q2 2014

Shares 1,034,858 Value ($000) $55,944 Avg Close $48.96 Range $44.53 - $53.88

Q1 2014

Shares 970,977 Value ($000) $57,501 Avg Close $55.22 Range $51.55 - $60.27

Q4 2013

Shares 960,812 Value ($000) $64,305 Avg Close $58.63 Range $53.33 - $63.89

Q3 2013

Shares 925,088 Value ($000) $55,463 Avg Close $47.53 Range $41.58 - $55.43

Q2 2013

Shares 795,182 Value ($000) $37,175 Avg Close $38.12 Range $32.31 - $42.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	30,579	$6	$169.50	$154.80 - $183.58
Q3 2025	30,621	$5	$193.45	$172.51 - $222.19
Q2 2025	144,016	$32	$216.56	$190.86 - $229.08
Q1 2025	142,374	$31	$206.23	$183.82 - $224.26
Q4 2024	142,643	$32	$257.54	$220.08 - $289.94
Q3 2024	141,913	$36	$228.65	$187.70 - $258.10
Q2 2024	134,926	$27	$200.47	$187.45 - $222.81
Q1 2024	130,185	$29	$228.96	$194.52 - $282.26
Q4 2023	133,851	$39	$233.72	$195.99 - $288.33
Q3 2023	137,653	$29	$233.55	$192.90 - $268.22
Q2 2023	142,437	$37	$286.65	$245.65 - $383.62
Q1 2023	143,922	$56	$339.53	$266.01 - $381.21
Q4 2022	143,054	$40	$246.25	$210.55 - $283.35
Q3 2022	20,620	$4,588	$244.83	$207.63 - $267.12
Q2 2022	10,029	$2,568	$260.22	$237.15 - $332.85
Q1 2022	9,724	$3,308	$344.01	$304.48 - $391.34
Q4 2021	2,135	$878	$373.74	$323.75 - $410.92
Q3 2021	2,171	$913	$434.10	$386.93 - $472.28
Q2 2021	2,184	$1,012	$449.61	$407.56 - $515.46
Q1 2021	2,262	$1,126	$503.06	$444.56 - $555.48
Q4 2020	68,751	$39,227	$513.28	$445.05 - $571.70
Q3 2020	89,719	$43,208	$465.37	$409.02 - $528.32
Q2 2020	99,863	$50,023	$438.02	$297.02 - $495.82
Q1 2020	154,690	$51,445	$327.01	$258.83 - $365.21
Q4 2019	147,220	$55,812	$343.80	$297.75 - $386.27
Q3 2019	151,015	$49,458	$335.01	$297.39 - $394.69
Q2 2019	170,045	$54,656	$270.14	$225.08 - $320.72
Q1 2019	214,955	$52,896	$211.23	$192.59 - $233.31
Q4 2018	235,943	$49,857	$192.62	$159.95 - $215.45
Q3 2018	228,568	$40,797	$178.37	$164.65 - $196.55
Q2 2018	230,125	$45,533	$192.09	$180.81 - $204.01
Q1 2018	235,909	$51,296	$190.22	$171.07 - $212.71
Q4 2017	219,735	$44,332	$174.10	$158.03 - $190.10
Q3 2017	218,812	$40,373	$176.21	$159.36 - $192.97
Q2 2017	570,484	$114,724	$176.15	$163.16 - $194.23
Q1 2017	595,939	$111,733	$166.41	$135.53 - $184.55
Q4 2016	607,530	$89,258	$145.60	$133.06 - $158.12
Q3 2016	697,740	$115,539	$148.56	$129.96 - $163.14
Q2 2016	660,904	$96,095	$121.40	$107.26 - $133.06
Q1 2016	706,089	$88,141	$104.04	$89.17 - $116.19
Q4 2015	791,964	$88,375	$92.99	$78.27 - $105.44
Q3 2015	825,881	$76,708	$87.71	$79.52 - $94.87
Q2 2015	869,766	$80,688	$79.87	$74.17 - $89.60
Q1 2015	882,479	$73,158	$71.51	$59.68 - $80.40
Q4 2014	968,111	$69,423	$59.29	$54.38 - $66.53
Q3 2014	930,619	$57,568	$50.63	$42.39 - $56.56
Q2 2014	1,034,858	$55,944	$48.96	$44.53 - $53.88
Q1 2014	970,977	$57,501	$55.22	$51.55 - $60.27
Q4 2013	960,812	$64,305	$58.63	$53.33 - $63.89
Q3 2013	925,088	$55,463	$47.53	$41.58 - $55.43
Q2 2013	795,182	$37,175	$38.12	$32.31 - $42.94