Walleye Trading
MKTX icon

Walleye Trading’s MarketAxess Holdings MKTX Stock Holding History

Walleye Trading’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 		$49.5K Buy
300
+200
+200% +$35K ﹤0.01% 3683
2025
Q4 		$18.1K Hold
100
– – ﹤0.01% 4116
2025
Q3 		$17.4K Sell
100
-25,700
-100% -$5.03M ﹤0.01% 4157
2025
Q2 		$5.76M Buy
25,800
+10,900
+73% +$2.4M 0.01% 1132
2025
Q1 		$3.22M Buy
+14,900
New +$3.13M 0.01% 1345
2024
Q2 		– Sell
-900
Closed -$197K – 4683
2024
Q1 		$197K Sell
900
-1,200
-57% -$283K ﹤0.01% 3434
2023
Q4 		$615K Buy
2,100
+1,500
+250% +$363K ﹤0.01% 2898
2023
Q3 		$128K Buy
+600
New +$145K ﹤0.01% 3847
2016
Q4 		– Sell
-1,500
Closed -$248K – 4991
2016
Q3 		$248K Buy
1,500
+1,000
+200% +$162K ﹤0.01% 2653
2016
Q2 		$74K Sell
500
-300
-38% -$39.9K ﹤0.01% 3737
2016
Q1 		$98K Sell
800
-3,300
-80% -$377K ﹤0.01% 3351
2015
Q4 		$458K Buy
+4,100
New +$419K ﹤0.01% 1944
2015
Q3 		– Sell
-4,100
Closed -$380K – 5304
2015
Q2 		$380K Buy
+4,100
New +$362K ﹤0.01% 1910

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

Walleye Trading's MKTX Position: Q1 2026 in Review

Walleye Trading opened a new position in MarketAxess Holdings (MKTX) in Q1 2026: 19,070 shares worth $3.15M. The stake represents 0.01% of the portfolio and ranks #1413 among its holdings. This is a return to the name: Walleye Trading previously reported a position in MKTX as recently as Q3 2025.

Walleye Trading first reported a position in MKTX in Q3 2015 and has held it in 17 quarters since. 447 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

  • Walleye Trading held 19,070 shares of MarketAxess Holdings worth $3.15M as of Q1 2026.
  • MarketAxess Holdings was a new Walleye Trading position in Q1 2026.
  • MarketAxess Holdings made up 0.01% of Walleye Trading's portfolio in Q1 2026, its #1413 holding.
  • Walleye Trading first reported a position in MarketAxess Holdings in Q3 2015 and has held it in 17 quarters since.
  • 447 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.