MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

Capital World Investors's Holding History (CIK: 0001422849)

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

Q1 2021

Shares 151,400 Value ($000) $75,385 Avg Close $503.06 Range $444.56 - $555.48

Q4 2020

Shares 151,400 Value ($000) $86,383 Avg Close $513.28 Range $445.05 - $571.70

Q3 2020

Shares 206,000 Value ($000) $99,208 Avg Close $465.37 Range $409.02 - $528.32

Q2 2020

Shares 444,496 Value ($000) $222,657 Avg Close $438.02 Range $297.02 - $495.82

Q1 2020

Shares 444,466 Value ($000) $147,816 Avg Close $327.01 Range $258.83 - $365.21

Q4 2019

Shares 759,935 Value ($000) $288,099 Avg Close $343.80 Range $297.75 - $386.27

Q3 2019

Shares 859,641 Value ($000) $281,532 Avg Close $335.01 Range $297.39 - $394.69

Q2 2019

Shares 875,253 Value ($000) $281,324 Avg Close $270.14 Range $225.08 - $320.72

Q1 2019

Shares 1,875,100 Value ($000) $461,425 Avg Close $211.23 Range $192.59 - $233.31

Q4 2018

Shares 1,875,100 Value ($000) $396,227 Avg Close $192.62 Range $159.95 - $215.45

Q3 2018

Shares 1,875,100 Value ($000) $334,687 Avg Close $178.37 Range $164.65 - $196.55

Q2 2018

Shares 1,707,600 Value ($000) $337,866 Avg Close $192.09 Range $180.81 - $204.01

Q1 2018

Shares 1,688,000 Value ($000) $367,039 Avg Close $190.22 Range $171.07 - $212.71

Q4 2017

Shares 1,665,000 Value ($000) $335,914 Avg Close $174.10 Range $158.03 - $190.10

Q3 2017

Shares 1,466,000 Value ($000) $270,492 Avg Close $176.21 Range $159.36 - $192.97

Q2 2017

Shares 1,466,000 Value ($000) $294,813 Avg Close $176.15 Range $163.16 - $194.23

Q1 2017

Shares 1,466,000 Value ($000) $274,860 Avg Close $166.41 Range $135.53 - $184.55

Q4 2016

Shares 660,000 Value ($000) $96,967 Avg Close $145.60 Range $133.06 - $158.12

Q3 2016

Shares 660,000 Value ($000) $109,289 Avg Close $148.56 Range $129.96 - $163.14

Q2 2016

Shares 660,000 Value ($000) $95,964 Avg Close $121.40 Range $107.26 - $133.06

Q1 2016

Shares 660,000 Value ($000) $82,388 Avg Close $104.04 Range $89.17 - $116.19

Q4 2015

Shares 590,000 Value ($000) $65,838 Avg Close $92.99 Range $78.27 - $105.44

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	151,400	$75,385	$503.06	$444.56 - $555.48
Q4 2020	151,400	$86,383	$513.28	$445.05 - $571.70
Q3 2020	206,000	$99,208	$465.37	$409.02 - $528.32
Q2 2020	444,496	$222,657	$438.02	$297.02 - $495.82
Q1 2020	444,466	$147,816	$327.01	$258.83 - $365.21
Q4 2019	759,935	$288,099	$343.80	$297.75 - $386.27
Q3 2019	859,641	$281,532	$335.01	$297.39 - $394.69
Q2 2019	875,253	$281,324	$270.14	$225.08 - $320.72
Q1 2019	1,875,100	$461,425	$211.23	$192.59 - $233.31
Q4 2018	1,875,100	$396,227	$192.62	$159.95 - $215.45
Q3 2018	1,875,100	$334,687	$178.37	$164.65 - $196.55
Q2 2018	1,707,600	$337,866	$192.09	$180.81 - $204.01
Q1 2018	1,688,000	$367,039	$190.22	$171.07 - $212.71
Q4 2017	1,665,000	$335,914	$174.10	$158.03 - $190.10
Q3 2017	1,466,000	$270,492	$176.21	$159.36 - $192.97
Q2 2017	1,466,000	$294,813	$176.15	$163.16 - $194.23
Q1 2017	1,466,000	$274,860	$166.41	$135.53 - $184.55
Q4 2016	660,000	$96,967	$145.60	$133.06 - $158.12
Q3 2016	660,000	$109,289	$148.56	$129.96 - $163.14
Q2 2016	660,000	$95,964	$121.40	$107.26 - $133.06
Q1 2016	660,000	$82,388	$104.04	$89.17 - $116.19
Q4 2015	590,000	$65,838	$92.99	$78.27 - $105.44