SummitTX Capital’s MarketAxess Holdings MKTX Stock Holding History

SummitTX Capital’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	$2.76M	Buy	+24,362	New	+$3.47M	0.07%	290
2026 Q1	–	Sell	-13,612	Closed	-$2.47M	–	891
2025 Q4	$2.47M	Buy	13,612 +11,784	+645%	+$2.01M	0.07%	277
2025 Q3	$319K	Sell	1,828 -1,969	-52%	-$385K	0.01%	618
2025 Q2	$848K	Buy	3,797 +2,033	+115%	+$447K	0.04%	398
2025 Q1	$382K	Buy	+1,764	New	+$371K	0.02%	607

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

SummitTX Capital's MKTX Position: Q2 2026 in Review

SummitTX Capital opened a new position in MarketAxess Holdings (MKTX) in Q2 2026: 24,362 shares worth $2.76M. The stake represents 0.07% of the portfolio and ranks #290 among its holdings. This is a return to the name: SummitTX Capital previously reported a position in MKTX as recently as Q4 2025.

SummitTX Capital first reported a position in MKTX in Q1 2025 and has held it in 5 quarters since. 396 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

SummitTX Capital held 24,362 shares of MarketAxess Holdings worth $2.76M as of Q2 2026.
MarketAxess Holdings was a new SummitTX Capital position in Q2 2026.
MarketAxess Holdings made up 0.07% of SummitTX Capital's portfolio in Q2 2026, its #290 holding.
SummitTX Capital first reported a position in MarketAxess Holdings in Q1 2025 and has held it in 5 quarters since.
396 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on SummitTX Capital's 13F filing for Q2 2026, filed 14 Aug 2026.