Horizon Kinetics Asset Management’s MarketAxess Holdings MKTX Stock Holding History

Horizon Kinetics Asset 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 Q2	$256K	Buy	2,254 +152	+7%	+$21.7K	﹤0.01%	280
2026 Q1	$347K	Buy	2,102 +152	+8%	+$26.6K	﹤0.01%	254
2025 Q4	$353K	Hold	1,950	–	–	﹤0.01%	249
2025 Q3	$340K	Buy	1,950 +76	+4%	+$14.9K	﹤0.01%	263
2025 Q2	$419K	Buy	1,874 +380	+25%	+$83.5K	0.01%	258
2025 Q1	$323K	Hold	1,494	–	–	﹤0.01%	273
2024 Q4	$338K	Buy	1,494 +152	+11%	+$40K	﹤0.01%	268
2024 Q3	$344K	Buy	1,342 +76	+6%	+$17.8K	0.01%	265
2024 Q2	$254K	Buy	1,266 +297	+31%	+$61.2K	﹤0.01%	271
2024 Q1	$212K	Buy	969 +244	+34%	+$57.6K	﹤0.01%	282
2023 Q4	$212K	Buy	+725	New	+$175K	﹤0.01%	281
2022 Q3	–	Sell	-5,704	Closed	-$1.46M	–	336
2022 Q2	$1.46M	Hold	5,704	–	–	0.03%	128
2022 Q1	$1.94M	Hold	5,704	–	–	0.04%	125
2021 Q4	$2.35M	Buy	5,704 +550	+11%	+$217K	0.05%	112
2021 Q3	$2.17M	Hold	5,154	–	–	0.05%	114
2021 Q2	$2.39M	Buy	5,154 +154	+3%	+$73.3K	0.05%	109
2021 Q1	$2.49M	Hold	5,000	–	–	0.06%	103
2020 Q4	$2.85M	Hold	5,000	–	–	0.1%	87
2020 Q3	$2.41M	Hold	5,000	–	–	0.1%	96
2020 Q2	$2.5M	Hold	5,000	–	–	0.09%	88
2020 Q1	$1.66M	Hold	5,000	–	–	0.07%	101
2019 Q4	$1.9M	Hold	5,000	–	–	0.05%	115
2019 Q3	$1.64M	Hold	5,000	–	–	0.05%	127
2019 Q2	$1.61M	Hold	5,000	–	–	0.04%	133
2019 Q1	$1.23M	Buy	+5,000	New	+$1.13M	0.03%	152

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

Horizon Kinetics Asset Management's MKTX Position: Q2 2026 in Review

Horizon Kinetics Asset Management increased its MarketAxess Holdings (MKTX) stake by 7.2% in Q2 2026, buying an estimated $21.7K and bringing the position to 2,254 shares worth $256K. The position accounts for ﹤0.01% of the portfolio, ranked #280.

Horizon Kinetics Asset Management first reported a position in MKTX in Q1 2019 and has held it in 25 quarters since. The position peaked at $2.85M in Q4 2020. 394 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

Horizon Kinetics Asset Management held 2,254 shares of MarketAxess Holdings worth $256K as of Q2 2026.
Horizon Kinetics Asset Management bought 152 MarketAxess Holdings shares in Q2 2026, an estimated $21.7K.
MarketAxess Holdings made up ﹤0.01% of Horizon Kinetics Asset Management's portfolio in Q2 2026, its #280 holding.
Horizon Kinetics Asset Management first reported a position in MarketAxess Holdings in Q1 2019 and has held it in 25 quarters since.
Horizon Kinetics Asset Management's MarketAxess Holdings position peaked at $2.85M in Q4 2020.
394 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on Horizon Kinetics Asset Management's 13F filing for Q2 2026, filed 11 Aug 2026.