Two Sigma Investments
MKTX icon

Two Sigma Investments’s MarketAxess Holdings MKTX Stock Holding History

Two Sigma Investments’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
2022
Q1 		– Sell
-6,600
Closed -$2.71M – 3692
2021
Q4 		$2.71M Buy
6,600
+3,100
+89% +$1.22M 0.01% 1651
2021
Q3 		$1.47M Sell
3,500
-1,100
-24% -$505K ﹤0.01% 2260
2021
Q2 		$2.13M Buy
4,600
+1,500
+48% +$714K ﹤0.01% 1814
2021
Q1 		$1.54M Buy
3,100
+1,100
+55% +$587K ﹤0.01% 1910
2020
Q4 		$1.14M Buy
+2,000
New +$1.09M ﹤0.01% 1888

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

Two Sigma Investments's MKTX Position: Q1 2026 in Review

Two Sigma Investments reduced its MarketAxess Holdings (MKTX) stake by 1.8% in Q1 2026, selling an estimated $1.66M and leaving 524,024 shares worth $86.5M. The position accounts for 0.07% of the portfolio, ranked #315.

Two Sigma Investments first reported a position in MKTX in Q2 2013 and has held it in 18 quarters since. The position peaked at $96.7M in Q4 2025. 450 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

  • Two Sigma Investments held 524,024 shares of MarketAxess Holdings worth $86.5M as of Q1 2026.
  • Two Sigma Investments sold 9,503 MarketAxess Holdings shares in Q1 2026, an estimated $1.66M.
  • MarketAxess Holdings made up 0.07% of Two Sigma Investments's portfolio in Q1 2026, its #315 holding.
  • Two Sigma Investments first reported a position in MarketAxess Holdings in Q2 2013 and has held it in 18 quarters since.
  • Two Sigma Investments's MarketAxess Holdings position peaked at $96.7M in Q4 2025.
  • 450 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.