Hudson Bay Capital Management’s MarketAxess Holdings MKTX Stock Holding History

Hudson Bay Capital Management’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	-13,054	Closed	-$2.37M	–	1516
2025 Q4	$2.37M	Sell	13,054 -919	-7%	-$157K	0.01%	680
2025 Q3	$2.43M	Buy	+13,973	New	+$2.73M	0.01%	723
2025 Q1	–	Sell	-29,897	Closed	-$6.76M	–	1414
2024 Q4	$6.76M	Sell	29,897 -28,618	-49%	-$7.53M	0.02%	438
2024 Q3	$15M	Buy	+58,515	New	+$13.7M	0.06%	204
2024 Q1	–	Sell	-50,000	Closed	-$14.6M	–	827
2023 Q4	$14.6M	Buy	+50,000	New	+$12.1M	0.09%	131
2017 Q3	–	Sell	-27,000	Closed	-$5.43M	–	477
2017 Q2	$5.43M	Buy	+27,000	New	+$5.17M	0.11%	175

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

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

NRCM

North Reef Capital Management Laguna Beach, California $2.61B AUM 11.5% 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

VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Hudson Bay Capital Management's MKTX Position: Q1 2026 in Review

Hudson Bay Capital Management sold out of MarketAxess Holdings (MKTX) in Q1 2026, closing a stake of 13,054 shares — an estimated $2.37M sold.

Hudson Bay Capital Management first reported a position in MKTX in Q2 2017 and held it in 6 quarters. The position peaked at $15M in Q3 2024. 452 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

Hudson Bay Capital Management reported no remaining MarketAxess Holdings position as of Q1 2026 after selling out during the quarter.
Hudson Bay Capital Management sold 13,054 MarketAxess Holdings shares in Q1 2026, an estimated $2.37M.
Hudson Bay Capital Management first reported a position in MarketAxess Holdings in Q2 2017 and held it in 6 quarters.
Hudson Bay Capital Management's MarketAxess Holdings position peaked at $15M in Q3 2024.
452 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.