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Guardian Partners’s MarketAxess Holdings MKTX Stock Holding History

Guardian Partners’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 		$232K Sell
1,401
-99
-7% -$17.3K 0.02% 180
2025
Q4 		$243K Buy
1,500
+200
+15% +$34.1K 0.02% 193
2025
Q3 		$222K Sell
1,300
-25
-2% -$4.89K 0.02% 170
2025
Q2 		$291K Sell
1,325
-390
-23% -$85.7K 0.03% 158
2025
Q1 		$373K Sell
1,715
-11,885
-87% -$2.5M 0.04% 135
2024
Q4 		$2.99M Buy
+13,600
New +$3.58M 0.3% 76

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

Guardian Partners's MKTX Position: Q1 2026 in Review

Guardian Partners reduced its MarketAxess Holdings (MKTX) stake by 6.6% in Q1 2026, selling an estimated $17.3K and leaving 1,401 shares worth $232K. The position accounts for 0.02% of the portfolio, ranked #180.

Guardian Partners first reported a position in MKTX in Q4 2024 and has held it in 6 quarters since. The position peaked at $2.99M in Q4 2024. 447 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

  • Guardian Partners held 1,401 shares of MarketAxess Holdings worth $232K as of Q1 2026.
  • Guardian Partners sold 99 MarketAxess Holdings shares in Q1 2026, an estimated $17.3K.
  • MarketAxess Holdings made up 0.02% of Guardian Partners's portfolio in Q1 2026, its #180 holding.
  • Guardian Partners first reported a position in MarketAxess Holdings in Q4 2024 and has held it in 6 quarters since.
  • Guardian Partners's MarketAxess Holdings position peaked at $2.99M in Q4 2024.
  • 447 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Guardian Partners's 13F filing for Q1 2026, filed 18 May 2026.