William Blair & Company’s MarketAxess Holdings MKTX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$287K Buy
+1,287
New +$287K ﹤0.01% 1285
2024
Q1
Sell
-955
Closed -$280K 1830
2023
Q4
$280K Buy
+955
New +$280K ﹤0.01% 1283
2023
Q3
Sell
-2,062
Closed -$539K 1823
2023
Q2
$539K Sell
2,062
-689
-25% -$180K ﹤0.01% 1030
2023
Q1
$1.08M Buy
2,751
+299
+12% +$117K ﹤0.01% 813
2022
Q4
$684K Buy
2,452
+84
+4% +$23.4K ﹤0.01% 948
2022
Q3
$527K Sell
2,368
-228
-9% -$50.7K ﹤0.01% 1020
2022
Q2
$665K Sell
2,596
-2,587
-50% -$663K ﹤0.01% 975
2022
Q1
$1.76M Sell
5,183
-698
-12% -$237K 0.01% 730
2021
Q4
$2.42M Sell
5,881
-249
-4% -$102K 0.01% 676
2021
Q3
$2.58M Sell
6,130
-95
-2% -$40K 0.01% 635
2021
Q2
$2.89M Sell
6,225
-230
-4% -$107K 0.01% 597
2021
Q1
$3.21M Sell
6,455
-608
-9% -$303K 0.01% 555
2020
Q4
$4.03M Sell
7,063
-816
-10% -$466K 0.01% 478
2020
Q3
$3.79M Sell
7,879
-866
-10% -$417K 0.02% 453
2020
Q2
$4.38M Sell
8,745
-693
-7% -$347K 0.02% 404
2020
Q1
$3.14M Sell
9,438
-532
-5% -$177K 0.02% 431
2019
Q4
$3.78M Buy
9,970
+8,393
+532% +$3.18M 0.02% 457
2019
Q3
$516K Sell
1,577
-2,864
-64% -$937K ﹤0.01% 931
2019
Q2
$1.43M Sell
4,441
-455
-9% -$146K 0.01% 665
2019
Q1
$1.21M Sell
4,896
-445
-8% -$110K 0.01% 685
2018
Q4
$1.13M Sell
5,341
-1,362
-20% -$288K 0.01% 660
2018
Q3
$1.2M Sell
6,703
-67,815
-91% -$12.1M 0.01% 689
2018
Q2
$14.7M Buy
74,518
+2,549
+4% +$504K 0.1% 192
2018
Q1
$15.6M Sell
71,969
-20,367
-22% -$4.43M 0.11% 180
2017
Q4
$18.6M Buy
92,336
+23,438
+34% +$4.73M 0.13% 173
2017
Q3
$12.7M Sell
68,898
-1,147
-2% -$212K 0.1% 207
2017
Q2
$14.1M Sell
70,045
-10,460
-13% -$2.1M 0.11% 203
2017
Q1
$15.7M Sell
80,505
-3,053
-4% -$596K 0.13% 178
2016
Q4
$12.3M Buy
83,558
+2,271
+3% +$334K 0.11% 196
2016
Q3
$13.5M Buy
81,287
+65,808
+425% +$10.9M 0.12% 189
2016
Q2
$2.25M Buy
+15,479
New +$2.25M 0.02% 453
2015
Q3
Sell
-4,527
Closed -$419K 1481
2015
Q2
$419K Buy
+4,527
New +$419K ﹤0.01% 1819