HCA
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Harbor Capital Advisors’s MarketAxess Holdings MKTX Stock Holding History

Harbor Capital 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
2025
Q3 		– Sell
-225
Closed -$50K – 1433
2025
Q2 		$50K Sell
225
-32
-12% -$7.03K ﹤0.01% 699
2025
Q1 		$56K Buy
+257
New +$54K ﹤0.01% 697
2023
Q1 		– Sell
-299
Closed -$83.4K – 262
2022
Q4 		$83.4K Sell
299
-44
-13% -$11.3K 0.08% 102
2022
Q3 		$76K Sell
343
-241
-41% -$61.8K 0.07% 123
2022
Q2 		$150K Buy
584
+142
+32% +$38.8K 0.11% 113
2022
Q1 		$150K Buy
+442
New +$160K 0.07% 147

Other funds holding MKTX

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
HSBC Holdings
HSBC Holdings London, United Kingdom $192B AUM 27.2% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
GAM
GuardCap Asset Management London, United Kingdom $1.75B AUM 7.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return