PDT Partners’s MarketAxess Holdings MKTX Stock Holding History

PDT Partners’s Portfolio MKTX Stock Details MKTX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$706K	Hold	4,280	–	–	0.04%	376
2025 Q4	$776K	Buy	+4,280	New	+$730K	0.05%	368
2022 Q4	–	Sell	-1,530	Closed	-$340K	–	795
2022 Q3	$340K	Sell	1,530 -3,801	-71%	-$975K	0.05%	544
2022 Q2	$1.36M	Buy	5,331 +4,131	+344%	+$1.13M	0.12%	279
2022 Q1	$408K	Buy	+1,200	New	+$435K	0.04%	635
2021 Q3	–	Sell	-1,719	Closed	-$797K	–	855
2021 Q2	$797K	Sell	1,719 -6,188	-78%	-$2.95M	0.05%	412
2021 Q1	$3.94M	Sell	7,907 -1,793	-18%	-$956K	0.28%	133
2020 Q4	$5.53M	Sell	9,700 -6,424	-40%	-$3.5M	0.37%	86
2020 Q3	$7.76M	Sell	16,124 -994	-6%	-$491K	0.51%	42
2020 Q2	$8.57M	Buy	17,118 +14,488	+551%	+$6.75M	0.58%	23
2020 Q1	$875K	Buy	+2,630	New	+$916K	0.07%	249
2014 Q3	–	Sell	-23,035	Closed	-$1.25M	–	1472
2014 Q2	$1.25M	Buy	23,035 +18,835	+448%	+$1.03M	0.03%	616
2014 Q1	$249K	Buy	+4,200	New	+$260K	0.01%	1170
2013 Q4	–	Sell	-11,635	Closed	-$699K	–	961
2013 Q3	$699K	Sell	11,635 -13,797	-54%	-$737K	0.02%	911
2013 Q2	$1.19M	Buy	+25,432	New	+$1.09M	0.03%	749

Other funds holding MKTX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Primecap Management

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

AQR Capital Management

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

North Reef Capital Management Laguna Beach, California $2.91B AUM 11.03% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VanEck Associates

VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return

Millennium Management

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return