Headlands Technologies’s MarketAxess Holdings MKTX Stock Holding History

Headlands Technologies’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	$1.2M	Buy	+10,603	New	+$1.51M	0.13%	200
2025 Q4	–	Sell	-12,127	Closed	-$2.11M	–	793
2025 Q3	$2.11M	Buy	12,127 +9,022	+291%	+$1.76M	0.17%	135
2025 Q2	$693K	Sell	3,105 -3,311	-52%	-$728K	0.08%	249
2025 Q1	$1.39M	Buy	6,416 +3,658	+133%	+$768K	0.16%	145
2024 Q4	$623K	Sell	2,758 -331	-11%	-$87.1K	0.06%	303
2024 Q3	$791K	Sell	3,089 -1,912	-38%	-$448K	0.09%	239
2024 Q2	$1M	Buy	5,001 +4,682	+1,468%	+$965K	0.11%	168
2024 Q1	$69.9K	Sell	319 -260	-45%	-$61.4K	0.02%	623
2023 Q4	$170K	Sell	579 -433	-43%	-$105K	0.05%	304
2023 Q3	$216K	Sell	1,012 -293	-22%	-$71K	0.11%	189
2023 Q2	$341K	Buy	1,305 +568	+77%	+$169K	0.11%	212
2023 Q1	$288K	Buy	+737	New	+$261K	0.19%	97

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

Headlands Technologies's MKTX Position: Q2 2026 in Review

Headlands Technologies opened a new position in MarketAxess Holdings (MKTX) in Q2 2026: 10,603 shares worth $1.2M. The stake represents 0.13% of the portfolio and ranks #200 among its holdings. This is a return to the name: Headlands Technologies previously reported a position in MKTX as recently as Q3 2025.

Headlands Technologies first reported a position in MKTX in Q1 2023 and has held it in 12 quarters since. The position peaked at $2.11M in Q3 2025. 397 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

Headlands Technologies held 10,603 shares of MarketAxess Holdings worth $1.2M as of Q2 2026.
MarketAxess Holdings was a new Headlands Technologies position in Q2 2026.
MarketAxess Holdings made up 0.13% of Headlands Technologies's portfolio in Q2 2026, its #200 holding.
Headlands Technologies first reported a position in MarketAxess Holdings in Q1 2023 and has held it in 12 quarters since.
Headlands Technologies's MarketAxess Holdings position peaked at $2.11M in Q3 2025.
397 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on Headlands Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.