Tudor Investment Corp
MKTX icon

Tudor Investment Corp’s MarketAxess Holdings MKTX Stock Holding History

Tudor Investment Corp’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
-23,589
Closed -$4.28M – 4040
2025
Q4 		$4.28M Sell
23,589
-106,169
-82% -$18.1M 0.01% 1246
2025
Q3 		$22.6M Buy
129,758
+36,604
+39% +$7.16M 0.04% 383
2025
Q2 		$20.8M Buy
+93,154
New +$20.5M 0.05% 323
2023
Q4 		– Sell
-46,925
Closed -$10M – 2683
2023
Q3 		$10M Buy
46,925
+38,168
+436% +$9.25M 0.1% 234
2023
Q2 		$2.29M Buy
+8,757
New +$2.61M 0.03% 823
2022
Q4 		– Sell
-21,882
Closed -$5.63M – 2682
2022
Q3 		$4.87M Buy
21,882
+7,409
+51% +$1.9M 0.11% 229
2022
Q2 		$3.71M Buy
14,473
+5,487
+61% +$1.5M 0.1% 264
2022
Q1 		$3.06M Buy
8,986
+8,001
+812% +$2.9M 0.07% 360
2021
Q4 		$405K Buy
+985
New +$389K 0.01% 1623
2020
Q1 		– Sell
-1,710
Closed -$648K – 1217
2019
Q4 		$648K Buy
+1,710
New +$627K 0.03% 642
2019
Q1 		– Sell
-2,144
Closed -$453K – 1210
2018
Q4 		$453K Buy
+2,144
New +$444K 0.01% 626
2017
Q4 		– Sell
-1,662
Closed -$307K – 1192
2017
Q3 		$307K Buy
+1,662
New +$318K 0.01% 820
2017
Q2 		– Sell
-2,761
Closed -$518K – 1241
2017
Q1 		$518K Sell
2,761
-710
-20% -$129K 0.02% 662
2016
Q4 		$510K Buy
3,471
+36
+1% +$5.72K 0.01% 715
2016
Q3 		$569K Sell
3,435
-965
-22% -$157K 0.01% 667
2016
Q2 		$640K Buy
+4,400
New +$585K 0.01% 673
2016
Q1 		– Sell
-4,500
Closed -$502K – 1889
2015
Q4 		$502K Buy
+4,500
New +$460K 0.01% 874

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

Tudor Investment Corp's MKTX Position: Q1 2026 in Review

Tudor Investment Corp sold out of MarketAxess Holdings (MKTX) in Q1 2026, closing a stake of 23,589 shares — an estimated $4.28M sold.

Tudor Investment Corp first reported a position in MKTX in Q4 2015 and held it in 17 quarters. The position peaked at $22.6M in Q3 2025. 448 funds tracked by Wall St. Rank hold MKTX as of Q1 2026.

  • Tudor Investment Corp reported no remaining MarketAxess Holdings position as of Q1 2026 after selling out during the quarter.
  • Tudor Investment Corp sold 23,589 MarketAxess Holdings shares in Q1 2026, an estimated $4.28M.
  • Tudor Investment Corp first reported a position in MarketAxess Holdings in Q4 2015 and held it in 17 quarters.
  • Tudor Investment Corp's MarketAxess Holdings position peaked at $22.6M in Q3 2025.
  • 448 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q1 2026.

Based on Tudor Investment Corp's 13F filing for Q1 2026, filed 15 May 2026.