Summit Trail Advisors’s MarketAxess Holdings MKTX Stock Holding History

Summit Trail Advisors’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	$1.39M	Buy	8,402 +2,568	+44%	+$450K	0.02%	768
2025 Q4	$1.06M	Buy	5,834 +657	+13%	+$112K	0.02%	788
2025 Q3	$902K	Buy	5,177 +4,171	+415%	+$816K	0.01%	893
2025 Q2	$225K	Buy	+1,006	New	+$221K	﹤0.01%	1025

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

Summit Trail Advisors's MKTX Position: Q1 2026 in Review

Summit Trail Advisors increased its MarketAxess Holdings (MKTX) stake by 44% in Q1 2026, buying an estimated $450K and bringing the position to 8,402 shares worth $1.39M. The position accounts for 0.02% of the portfolio, ranked #768.

Summit Trail Advisors first reported a position in MKTX in Q2 2025 and has held it in 4 quarters since. 447 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

Summit Trail Advisors held 8,402 shares of MarketAxess Holdings worth $1.39M as of Q1 2026.
Summit Trail Advisors bought 2,568 MarketAxess Holdings shares in Q1 2026, an estimated $450K.
MarketAxess Holdings made up 0.02% of Summit Trail Advisors's portfolio in Q1 2026, its #768 holding.
Summit Trail Advisors first reported a position in MarketAxess Holdings in Q2 2025 and has held it in 4 quarters since.
447 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Summit Trail Advisors's 13F filing for Q1 2026, filed 12 May 2026.