Harbor Investment Advisory’s MarketAxess Holdings MKTX Stock Holding History

Harbor Investment Advisory’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	–	Sell	-155	Closed	-$28.1K	–	1312
2025 Q4	$28.1K	Hold	155	–	–	﹤0.01%	765
2025 Q3	$27K	Sell	155 -12	-7%	-$2.35K	﹤0.01%	745
2025 Q2	$37.3K	Buy	+167	New	+$36.7K	﹤0.01%	682
2024 Q2	–	Sell	-9	Closed	-$1.97K	–	1388
2024 Q1	$1.97K	Hold	9	–	–	﹤0.01%	1117
2023 Q4	$2.64K	Hold	9	–	–	﹤0.01%	1018
2023 Q3	$1.92K	Hold	9	–	–	﹤0.01%	1051
2023 Q2	$2.35K	Hold	9	–	–	﹤0.01%	1202
2023 Q1	$3.52K	Hold	9	–	–	﹤0.01%	1167
2022 Q4	$2.51K	Hold	9	–	–	﹤0.01%	1184
2022 Q3	$2K	Buy	9 +1	+13%	+$257	﹤0.01%	1236
2022 Q2	$2K	Buy	+8	New	+$2.19K	﹤0.01%	1243
2021 Q4	–	Sell	-3	Closed	-$1K	–	1335
2021 Q3	$1K	Hold	3	–	–	﹤0.01%	1276
2021 Q2	$1K	Hold	3	–	–	﹤0.01%	1223
2021 Q1	$1K	Hold	3	–	–	﹤0.01%	1221
2020 Q4	$2K	Hold	3	–	–	﹤0.01%	1109
2020 Q3	$1K	Hold	3	–	–	﹤0.01%	1087
2020 Q2	$2K	Buy	+3	New	+$1.4K	﹤0.01%	1002

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

Harbor Investment Advisory's MKTX Position: Q1 2026 in Review

Harbor Investment Advisory sold out of MarketAxess Holdings (MKTX) in Q1 2026, closing a stake of 155 shares — an estimated $28.1K sold.

Harbor Investment Advisory first reported a position in MKTX in Q2 2020 and held it in 17 quarters. The position peaked at $37.3K in Q2 2025. 447 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

Harbor Investment Advisory reported no remaining MarketAxess Holdings position as of Q1 2026 after selling out during the quarter.
Harbor Investment Advisory sold 155 MarketAxess Holdings shares in Q1 2026, an estimated $28.1K.
Harbor Investment Advisory first reported a position in MarketAxess Holdings in Q2 2020 and held it in 17 quarters.
Harbor Investment Advisory's MarketAxess Holdings position peaked at $37.3K in Q2 2025.
447 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Harbor Investment Advisory's 13F filing for Q1 2026, filed 23 Apr 2026.