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MKTX icon

AlphaQuest’s MarketAxess Holdings MKTX Stock Holding History

AlphaQuest’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
-1,098
Closed -$199K – 1238
2025
Q4 		$199K Sell
1,098
-8,319
-88% -$1.42M 0.01% 1449
2025
Q3 		$1.64M Buy
9,417
+4,465
+90% +$873K 0.11% 250
2025
Q2 		$1.11M Buy
4,952
+520
+12% +$114K 0.11% 270
2025
Q1 		$959K Buy
4,432
+920
+26% +$193K 0.1% 296
2024
Q4 		$794K Buy
3,512
+1,986
+130% +$523K 0.11% 312
2024
Q3 		$391K Sell
1,526
-424
-22% -$99.4K 0.03% 771
2024
Q2 		$391K Buy
1,950
+1,413
+263% +$291K 0.05% 547
2024
Q1 		$118K Buy
+537
New +$127K 0.02% 787

Other funds holding MKTX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
AQR Capital Management
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
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

AlphaQuest's MKTX Position: Q1 2026 in Review

AlphaQuest sold out of MarketAxess Holdings (MKTX) in Q1 2026, closing a stake of 1,098 shares — an estimated $199K sold.

AlphaQuest first reported a position in MKTX in Q1 2024 and held it in 8 quarters. The position peaked at $1.64M in Q3 2025. 448 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

  • AlphaQuest reported no remaining MarketAxess Holdings position as of Q1 2026 after selling out during the quarter.
  • AlphaQuest sold 1,098 MarketAxess Holdings shares in Q1 2026, an estimated $199K.
  • AlphaQuest first reported a position in MarketAxess Holdings in Q1 2024 and held it in 8 quarters.
  • AlphaQuest's MarketAxess Holdings position peaked at $1.64M in Q3 2025.
  • 448 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on AlphaQuest's 13F filing for Q1 2026.