Group One Trading’s MarketAxess Holdings MKTX Stock Holding History

Group One Trading’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	–	Sell	-298	Closed	-$52.2K	–	8307
2025 Q4	$54K	Sell	298 -249	-46%	-$42.5K	﹤0.01%	5544
2025 Q3	$95.3K	Buy	+547	New	+$107K	﹤0.01%	5391
2025 Q2	–	Sell	-2,202	Closed	-$484K	–	8373
2025 Q1	$476K	Buy	2,202 +1,973	+862%	+$414K	﹤0.01%	3144
2024 Q4	$51.8K	Buy	+229	New	+$60.3K	﹤0.01%	5030
2022 Q3	–	Sell	-1,386	Closed	-$355K	–	7952
2022 Q2	$355K	Sell	1,386 -1,536	-53%	-$420K	﹤0.01%	3741
2022 Q1	$994K	Buy	2,922 +2,380	+439%	+$863K	﹤0.01%	3088
2021 Q4	$223K	Buy	542 +242	+81%	+$95.5K	﹤0.01%	4969
2021 Q3	$126K	Buy	+300	New	+$138K	﹤0.01%	5676
2014 Q1	–	Sell	-780	Closed	-$48.2K	–	5421
2013 Q4	$52K	Sell	780 -2,311	-75%	-$152K	﹤0.01%	3583
2013 Q3	$186K	Buy	3,091 +3,050	+7,439%	+$163K	﹤0.01%	2445
2013 Q2	$2K	Buy	+41	New	+$1.76K	﹤0.01%	4894

Other funds holding MKTX

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

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

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

NRCM

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

Group One Trading's MKTX Position: Q1 2026 in Review

Group One Trading sold out of MarketAxess Holdings (MKTX) in Q1 2026, closing a stake of 298 shares — an estimated $52.2K sold.

Group One Trading first reported a position in MKTX in Q2 2013 and held it in 11 quarters. The position peaked at $994K in Q1 2022. 448 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

Group One Trading reported no remaining MarketAxess Holdings position as of Q1 2026 after selling out during the quarter.
Group One Trading sold 298 MarketAxess Holdings shares in Q1 2026, an estimated $52.2K.
Group One Trading first reported a position in MarketAxess Holdings in Q2 2013 and held it in 11 quarters.
Group One Trading's MarketAxess Holdings position peaked at $994K in Q1 2022.
448 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.