BlackRock’s MarketAxess Holdings MKTX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$454M Sell
3,999,836
-75,318
-2% -$10.7M 0.01% 1290
2026
Q1
$672M Buy
4,075,154
+328,682
+9% +$57.6M 0.01% 905
2025
Q4
$679M Buy
3,746,472
+1,896,063
+102% +$324M 0.01% 899
2025
Q3
$322M Sell
1,850,409
-799,477
-30% -$156M 0.01% 1357
2025
Q2
$592M Buy
2,649,886
+44,490
+2% +$9.78M 0.01% 943
2025
Q1
$564M Sell
2,605,396
-558,489
-18% -$117M 0.01% 959
2024
Q4
$715M Buy
3,163,885
+259,984
+9% +$68.4M 0.01% 836
2024
Q3
$744M Sell
2,903,901
-45,535
-2% -$10.7M 0.02% 801
2024
Q2
$591M Sell
2,949,436
-274,497
-9% -$56.6M 0.01% 884
2024
Q1
$707M Buy
3,223,933
+45,367
+1% +$10.7M 0.02% 801
2023
Q4
$931M Sell
3,178,566
-415,939
-12% -$101M 0.02% 609
2023
Q3
$768M Sell
3,594,505
-314,564
-8% -$76.2M 0.02% 646
2023
Q2
$1.02B Sell
3,909,069
-19,610
-0.5% -$5.85M 0.03% 533
2023
Q1
$1.54B Buy
3,928,679
+608,107
+18% +$215M 0.05% 385
2022
Q4
$926M Buy
3,320,572
+110,405
+3% +$28.4M 0.03% 544
2022
Q3
$714M Buy
3,210,167
+23,861
+0.7% +$6.12M 0.02% 632
2022
Q2
$816M Sell
3,186,306
-232,029
-7% -$63.5M 0.03% 589
2022
Q1
$1.16B Sell
3,418,335
-145,658
-4% -$52.8M 0.03% 524
2021
Q4
$1.47B Buy
3,563,993
+54,516
+2% +$21.5M 0.04% 460
2021
Q3
$1.48B Sell
3,509,477
-35,424
-1% -$16.3M 0.04% 443
2021
Q2
$1.64B Buy
3,544,901
+78,312
+2% +$37.3M 0.05% 400
2021
Q1
$1.73B Buy
3,466,589
+31,079
+0.9% +$16.6M 0.05% 370
2020
Q4
$1.96B Sell
3,435,510
-211,814
-6% -$115M 0.06% 307
2020
Q3
$1.76B Buy
3,647,324
+118,334
+3% +$58.5M 0.06% 288
2020
Q2
$1.77B Buy
3,528,990
+175,020
+5% +$81.5M 0.07% 269
2020
Q1
$1.12B Buy
3,353,970
+80,824
+2% +$28.2M 0.05% 328
2019
Q4
$1.24B Buy
3,273,146
+96,133
+3% +$35.3M 0.05% 386
2019
Q3
$1.04B Buy
3,177,013
+231,165
+8% +$82.7M 0.04% 421
2019
Q2
$947M Sell
2,945,848
-579,430
-16% -$167M 0.04% 454
2019
Q1
$868M Buy
3,525,278
+45,814
+1% +$10.4M 0.04% 473
2018
Q4
$735M Buy
3,479,464
+4,153
+0.1% +$860K 0.04% 485
2018
Q3
$620M Buy
3,475,311
+63,817
+2% +$12.3M 0.03% 635
2018
Q2
$675M Buy
3,411,494
+117,686
+4% +$24.4M 0.03% 560
2018
Q1
$716M Buy
3,293,808
+189,575
+6% +$39M 0.03% 530
2017
Q4
$626M Buy
3,104,233
+47,260
+2% +$8.92M 0.03% 589
2017
Q3
$564M Sell
3,056,973
-6,615
-0.2% -$1.27M 0.03% 593
2017
Q2
$616M Buy
3,063,588
+62,914
+2% +$12.1M 0.03% 544
2017
Q1
$563M Buy
3,000,674
+2,982,691
+16,586% +$541M 0.03% 585
2016
Q4
$2.64M Sell
17,983
-3,224
-15% -$512K ﹤0.01% 1122
2016
Q3
$3.51M Buy
21,207
+4,028
+23% +$654K 0.01% 1014
2016
Q2
$2.5M Buy
17,179
+2,638
+18% +$351K ﹤0.01% 1071
2016
Q1
$1.81M Buy
14,541
+1,230
+9% +$140K ﹤0.01% 1140
2015
Q4
$1.49M Buy
13,311
+12,312
+1,232% +$1.26M ﹤0.01% 1190
2015
Q3
$92K Sell
999
-21
-2% -$2.03K ﹤0.01% 1747
2015
Q2
$95K Sell
1,020
-63
-6% -$5.56K ﹤0.01% 1812
2015
Q1
$90K Sell
1,083
-87
-7% -$6.89K ﹤0.01% 1801
2014
Q4
$83K Hold
1,170
﹤0.01% 1782
2014
Q3
$73K Hold
1,170
﹤0.01% 1796
2014
Q2
$64K Sell
1,170
-45
-4% -$2.46K ﹤0.01% 1827
2014
Q1
$72K Hold
1,215
﹤0.01% 1790
2013
Q4
$81K Sell
1,215
-31
-2% -$2.04K ﹤0.01% 1798
2013
Q3
$74K Buy
1,246
+46
+4% +$2.46K ﹤0.01% 1735
2013
Q2
$56K Buy
+1,200
New +$51.6K ﹤0.01% 1818

Other funds holding MKTX

BlackRock's MKTX Position: Q2 2026 in Review

BlackRock reduced its MarketAxess Holdings (MKTX) stake by 1.8% in Q2 2026, selling an estimated $10.7M and leaving 3,999,836 shares worth $454M. The position accounts for 0.01% of the portfolio, ranked #1290.

BlackRock first reported a position in MKTX in Q2 2013 and has held it in 53 quarters since. The position peaked at $1.96B in Q4 2020. 393 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

  • BlackRock held 3,999,836 shares of MarketAxess Holdings worth $454M as of Q2 2026.
  • BlackRock sold 75,318 MarketAxess Holdings shares in Q2 2026, an estimated $10.7M.
  • MarketAxess Holdings made up 0.01% of BlackRock's portfolio in Q2 2026, its #1290 holding.
  • BlackRock first reported a position in MarketAxess Holdings in Q2 2013 and has held it in 53 quarters since.
  • BlackRock's MarketAxess Holdings position peaked at $1.96B in Q4 2020.
  • 393 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.