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 Q2	$26.3K	Buy	+232	New	+$33.1K	﹤0.01%	5830
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 $6.73T AUM 46.02% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

NRCM

North Reef Capital Management Laguna Beach, California $2.61B AUM 11.5% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Group One Trading's MKTX Position: Q2 2026 in Review

Group One Trading opened a new position in MarketAxess Holdings (MKTX) in Q2 2026: 232 shares worth $26.3K. The stake represents ﹤0.01% of the portfolio and ranks #5830 among its holdings. This is a return to the name: Group One Trading previously reported a position in MKTX as recently as Q4 2025.

Group One Trading first reported a position in MKTX in Q2 2013 and has held it in 12 quarters since. The position peaked at $994K in Q1 2022. 397 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

Group One Trading held 232 shares of MarketAxess Holdings worth $26.3K as of Q2 2026.
MarketAxess Holdings was a new Group One Trading position in Q2 2026.
MarketAxess Holdings made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #5830 holding.
Group One Trading first reported a position in MarketAxess Holdings in Q2 2013 and has held it in 12 quarters since.
Group One Trading's MarketAxess Holdings position peaked at $994K in Q1 2022.
397 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.