MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2025

Shares 9,203 Value ($000) $1,668 Avg Close $169.50 Range $154.80 - $183.58

Q3 2025

Shares 9,516 Value ($000) $1,658 Avg Close $193.45 Range $172.51 - $222.19

Q2 2025

Shares 9,198 Value ($000) $2,054 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 8,622 Value ($000) $1,865 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 8,017 Value ($000) $1,812 Avg Close $257.54 Range $220.08 - $289.94

Q3 2024

Shares 8,218 Value ($000) $2,105 Avg Close $228.65 Range $187.70 - $258.10

Q2 2024

Shares 8,324 Value ($000) $1,669 Avg Close $200.47 Range $187.45 - $222.81

Q1 2024

Shares 8,321 Value ($000) $1,824 Avg Close $228.96 Range $194.52 - $282.26

Q4 2023

Shares 8,301 Value ($000) $2,431 Avg Close $233.72 Range $195.99 - $288.33

Q3 2023

Shares 7,576 Value ($000) $1,619 Avg Close $233.55 Range $192.90 - $268.22

Q2 2023

Shares 6,570 Value ($000) $1,718 Avg Close $286.65 Range $245.65 - $383.62

Q1 2023

Shares 6,380 Value ($000) $2,496 Avg Close $339.53 Range $266.01 - $381.21

Q4 2022

Shares 6,362 Value ($000) $2 Avg Close $246.25 Range $210.55 - $283.35

Q3 2022

Shares 5,506 Value ($000) $1,225 Avg Close $244.83 Range $207.63 - $267.12

Q2 2022

Shares 5,495 Value ($000) $1,407 Avg Close $260.22 Range $237.15 - $332.85

Q1 2022

Shares 5,088 Value ($000) $1,731 Avg Close $344.01 Range $304.48 - $391.34

Q4 2021

Shares 4,773 Value ($000) $1,963 Avg Close $373.74 Range $323.75 - $410.92

Q3 2021

Shares 4,762 Value ($000) $2,003 Avg Close $434.10 Range $386.93 - $472.28

Q2 2021

Shares 4,759 Value ($000) $2,206 Avg Close $449.61 Range $407.56 - $515.46

Q1 2021

Shares 4,752 Value ($000) $2,366 Avg Close $503.06 Range $444.56 - $555.48

Q4 2020

Shares 4,744 Value ($000) $2,707 Avg Close $513.28 Range $445.05 - $571.70

Q3 2020

Shares 3,518 Value ($000) $1,694 Avg Close $465.37 Range $409.02 - $528.32

Q2 2020

Shares 2,168 Value ($000) $1,086 Avg Close $438.02 Range $297.02 - $495.82

Q1 2020

Shares 2,423 Value ($000) $806 Avg Close $327.01 Range $258.83 - $365.21

Q4 2019

Shares 2,442 Value ($000) $926 Avg Close $343.80 Range $297.75 - $386.27

Q3 2019

Shares 2,419 Value ($000) $792 Avg Close $335.01 Range $297.39 - $394.69

Q2 2019

Shares 2,213 Value ($000) $711 Avg Close $270.14 Range $225.08 - $320.72

Q1 2019

Shares 6,639 Value ($000) $1,634 Avg Close $211.23 Range $192.59 - $233.31

Q4 2018

Shares 6,597 Value ($000) $1,394 Avg Close $192.62 Range $159.95 - $215.45

Q3 2018

Shares 7,633 Value ($000) $1,362 Avg Close $178.37 Range $164.65 - $196.55

Q2 2018

Shares 10,151 Value ($000) $2,008 Avg Close $192.09 Range $180.81 - $204.01

Q1 2018

Shares 10,134 Value ($000) $2,204 Avg Close $190.22 Range $171.07 - $212.71

Q4 2017

Shares 5,490 Value ($000) $1,108 Avg Close $174.10 Range $158.03 - $190.10

Q3 2017

Shares 5,483 Value ($000) $1,012 Avg Close $176.21 Range $159.36 - $192.97

Q2 2017

Shares 5,485 Value ($000) $1,103 Avg Close $176.15 Range $163.16 - $194.23

Q1 2017

Shares 5,496 Value ($000) $1,030 Avg Close $166.41 Range $135.53 - $184.55

Q4 2016

Shares 5,564 Value ($000) $817 Avg Close $145.60 Range $133.06 - $158.12

Q3 2016

Shares 5,566 Value ($000) $922 Avg Close $148.56 Range $129.96 - $163.14

Q2 2016

Shares 7,230 Value ($000) $1,051 Avg Close $121.40 Range $107.26 - $133.06

Q1 2016

Shares 6,707 Value ($000) $837 Avg Close $104.04 Range $89.17 - $116.19

Q4 2015

Shares 10,812 Value ($000) $1,207 Avg Close $92.99 Range $78.27 - $105.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,203	$1,668	$169.50	$154.80 - $183.58
Q3 2025	9,516	$1,658	$193.45	$172.51 - $222.19
Q2 2025	9,198	$2,054	$216.56	$190.86 - $229.08
Q1 2025	8,622	$1,865	$206.23	$183.82 - $224.26
Q4 2024	8,017	$1,812	$257.54	$220.08 - $289.94
Q3 2024	8,218	$2,105	$228.65	$187.70 - $258.10
Q2 2024	8,324	$1,669	$200.47	$187.45 - $222.81
Q1 2024	8,321	$1,824	$228.96	$194.52 - $282.26
Q4 2023	8,301	$2,431	$233.72	$195.99 - $288.33
Q3 2023	7,576	$1,619	$233.55	$192.90 - $268.22
Q2 2023	6,570	$1,718	$286.65	$245.65 - $383.62
Q1 2023	6,380	$2,496	$339.53	$266.01 - $381.21
Q4 2022	6,362	$2	$246.25	$210.55 - $283.35
Q3 2022	5,506	$1,225	$244.83	$207.63 - $267.12
Q2 2022	5,495	$1,407	$260.22	$237.15 - $332.85
Q1 2022	5,088	$1,731	$344.01	$304.48 - $391.34
Q4 2021	4,773	$1,963	$373.74	$323.75 - $410.92
Q3 2021	4,762	$2,003	$434.10	$386.93 - $472.28
Q2 2021	4,759	$2,206	$449.61	$407.56 - $515.46
Q1 2021	4,752	$2,366	$503.06	$444.56 - $555.48
Q4 2020	4,744	$2,707	$513.28	$445.05 - $571.70
Q3 2020	3,518	$1,694	$465.37	$409.02 - $528.32
Q2 2020	2,168	$1,086	$438.02	$297.02 - $495.82
Q1 2020	2,423	$806	$327.01	$258.83 - $365.21
Q4 2019	2,442	$926	$343.80	$297.75 - $386.27
Q3 2019	2,419	$792	$335.01	$297.39 - $394.69
Q2 2019	2,213	$711	$270.14	$225.08 - $320.72
Q1 2019	6,639	$1,634	$211.23	$192.59 - $233.31
Q4 2018	6,597	$1,394	$192.62	$159.95 - $215.45
Q3 2018	7,633	$1,362	$178.37	$164.65 - $196.55
Q2 2018	10,151	$2,008	$192.09	$180.81 - $204.01
Q1 2018	10,134	$2,204	$190.22	$171.07 - $212.71
Q4 2017	5,490	$1,108	$174.10	$158.03 - $190.10
Q3 2017	5,483	$1,012	$176.21	$159.36 - $192.97
Q2 2017	5,485	$1,103	$176.15	$163.16 - $194.23
Q1 2017	5,496	$1,030	$166.41	$135.53 - $184.55
Q4 2016	5,564	$817	$145.60	$133.06 - $158.12
Q3 2016	5,566	$922	$148.56	$129.96 - $163.14
Q2 2016	7,230	$1,051	$121.40	$107.26 - $133.06
Q1 2016	6,707	$837	$104.04	$89.17 - $116.19
Q4 2015	10,812	$1,207	$92.99	$78.27 - $105.44