MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2025
Shares 259 Value ($000) $47 Avg Close $169.50 Range $154.80 - $183.58
Q3 2025
Shares 2,289 Value ($000) $0 Avg Close $193.45 Range $172.51 - $222.19
Q2 2025
Shares 2,519 Value ($000) $1 Avg Close $216.56 Range $190.86 - $229.08
Q1 2025
Shares 6,943 Value ($000) $2 Avg Close $206.23 Range $183.82 - $224.26
Q4 2024
Shares 697 Value ($000) $0 Avg Close $257.54 Range $220.08 - $289.94
Q2 2024
Shares 3,816 Value ($000) $1 Avg Close $200.47 Range $187.45 - $222.81
Q4 2023
Shares 764 Value ($000) $0 Avg Close $233.72 Range $195.99 - $288.33
Q3 2023
Shares 2,472 Value ($000) $1 Avg Close $233.55 Range $192.90 - $268.22
Q3 2022
Shares 2,681 Value ($000) $596 Avg Close $244.83 Range $207.63 - $267.12
Q4 2021
Shares 37 Value ($000) $15 Avg Close $373.74 Range $323.75 - $410.92
Q3 2021
Shares 2,829 Value ($000) $1,313 Avg Close $434.10 Range $386.93 - $472.28
Q2 2021
Shares 2,929 Value ($000) $1,357 Avg Close $449.61 Range $407.56 - $515.46
Q1 2021
Shares 2,148 Value ($000) $1,069 Avg Close $503.06 Range $444.56 - $555.48
Q4 2020
Shares 929 Value ($000) $530 Avg Close $513.28 Range $445.05 - $571.70
Q3 2019
Shares 6,811 Value ($000) $2,230 Avg Close $335.01 Range $297.39 - $394.69
Q2 2019
Shares 2,651 Value ($000) $852 Avg Close $270.14 Range $225.08 - $320.72
Q1 2019
Shares 3,819 Value ($000) $939 Avg Close $211.23 Range $192.59 - $233.31
Q4 2018
Shares 3,551 Value ($000) $750 Avg Close $192.62 Range $159.95 - $215.45
Q3 2018
Shares 283 Value ($000) $50 Avg Close $178.37 Range $164.65 - $196.55
Q2 2018
Shares 840 Value ($000) $166 Avg Close $192.09 Range $180.81 - $204.01
Q1 2018
Shares 1,035 Value ($000) $225 Avg Close $190.22 Range $171.07 - $212.71
Q4 2017
Shares 776 Value ($000) $156 Avg Close $174.10 Range $158.03 - $190.10
Q2 2017
Shares 2,047 Value ($000) $411 Avg Close $176.15 Range $163.16 - $194.23
Q4 2016
Shares 815 Value ($000) $119 Avg Close $145.60 Range $133.06 - $158.12
Q2 2016
Shares 1,714 Value ($000) $249 Avg Close $121.40 Range $107.26 - $133.06
Q1 2016
Shares 79 Value ($000) $9 Avg Close $104.04 Range $89.17 - $116.19
Q4 2015
Shares 568 Value ($000) $63 Avg Close $92.99 Range $78.27 - $105.44
Q3 2015
Shares 5 Value ($000) $0 Avg Close $87.71 Range $79.52 - $94.87