Millennium Management’s MarketAxess Holdings MKTX Stock Holding History

Millennium 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	$19.5M	Buy	118,200 +67,000	+131%	+$11.7M	0.01%	1577
2025 Q4	$9.28M	Sell	51,200 -670,800	-93%	-$114M	﹤0.01%	2342
2025 Q3	$126M	Buy	+722,000	New	+$141M	0.05%	334
2022 Q4	–	Sell	-5,000	Closed	-$1.11M	–	6854
2022 Q3	$1.11M	Buy	+5,000	New	+$1.28M	﹤0.01%	4245
2014 Q1	–	Sell	-3,100	Closed	-$207K	–	3723
2013 Q4	$207K	Buy	+3,100	New	+$204K	﹤0.01%	3243

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

Bank of Montreal Toronto, Ontario, Canada $269B AUM 31.4% 1-Year Est. Return

Millennium Management's MKTX Position: Q1 2026 in Review

Millennium Management increased its MarketAxess Holdings (MKTX) stake by 260% in Q1 2026, buying an estimated $138M and bringing the position to 1,087,188 shares worth $179M. The position accounts for 0.07% of the portfolio, ranked #238.

Millennium Management first reported a position in MKTX in Q2 2013 and has held it in 44 quarters since. 448 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

Millennium Management held 1,087,188 shares of MarketAxess Holdings worth $179M as of Q1 2026.
Millennium Management bought 785,523 MarketAxess Holdings shares in Q1 2026, an estimated $138M.
MarketAxess Holdings made up 0.07% of Millennium Management's portfolio in Q1 2026, its #238 holding.
Millennium Management first reported a position in MarketAxess Holdings in Q2 2013 and has held it in 44 quarters since.
448 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.