Walleye Trading’s MarketAxess Holdings MKTX Stock Holding History

Walleye 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	$11.3K	Sell	100 -200	-67%	-$28.5K	﹤0.01%	3806
2026 Q1	$49.5K	Buy	300 +200	+200%	+$35K	﹤0.01%	3683
2025 Q4	$18.1K	Hold	100	–	–	﹤0.01%	4116
2025 Q3	$17.4K	Sell	100 -25,700	-100%	-$5.03M	﹤0.01%	4157
2025 Q2	$5.76M	Buy	25,800 +10,900	+73%	+$2.4M	0.01%	1132
2025 Q1	$3.22M	Buy	+14,900	New	+$3.13M	0.01%	1345
2024 Q2	–	Sell	-900	Closed	-$197K	–	4683
2024 Q1	$197K	Sell	900 -1,200	-57%	-$283K	﹤0.01%	3434
2023 Q4	$615K	Buy	2,100 +1,500	+250%	+$363K	﹤0.01%	2898
2023 Q3	$128K	Buy	+600	New	+$145K	﹤0.01%	3847
2016 Q4	–	Sell	-1,500	Closed	-$248K	–	4991
2016 Q3	$248K	Buy	1,500 +1,000	+200%	+$162K	﹤0.01%	2653
2016 Q2	$74K	Sell	500 -300	-38%	-$39.9K	﹤0.01%	3737
2016 Q1	$98K	Sell	800 -3,300	-80%	-$377K	﹤0.01%	3351
2015 Q4	$458K	Buy	+4,100	New	+$419K	﹤0.01%	1944
2015 Q3	–	Sell	-4,100	Closed	-$380K	–	5304
2015 Q2	$380K	Buy	+4,100	New	+$362K	﹤0.01%	1910

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 $3.38T AUM 44.17% 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

Walleye Trading's MKTX Position: Q2 2026 in Review

Walleye Trading reduced its MarketAxess Holdings (MKTX) stake by 89% in Q2 2026, selling an estimated $2.41M and leaving 2,147 shares worth $244K. The position accounts for ﹤0.01% of the portfolio, ranked #3036.

Walleye Trading first reported a position in MKTX in Q3 2015 and has held it in 18 quarters since. The position peaked at $3.15M in Q1 2026. 397 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

Walleye Trading held 2,147 shares of MarketAxess Holdings worth $244K as of Q2 2026.
Walleye Trading sold 16,923 MarketAxess Holdings shares in Q2 2026, an estimated $2.41M.
MarketAxess Holdings made up ﹤0.01% of Walleye Trading's portfolio in Q2 2026, its #3036 holding.
Walleye Trading first reported a position in MarketAxess Holdings in Q3 2015 and has held it in 18 quarters since.
Walleye Trading's MarketAxess Holdings position peaked at $3.15M in Q1 2026.
397 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on Walleye Trading's 13F filing for Q2 2026, filed 3 Aug 2026.