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
Q2 		$15.6M Buy
+137,847
New +$19.6M 0.02% 595
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 $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
NRCM
North Reef Capital Management Laguna Beach, California $2.61B AUM 11.5% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Tudor Investment Corp's MKTX Position: Q2 2026 in Review

Tudor Investment Corp opened a new position in MarketAxess Holdings (MKTX) in Q2 2026: 137,847 shares worth $15.6M. The stake represents 0.02% of the portfolio and ranks #595 among its holdings. This is a return to the name: Tudor Investment Corp previously reported a position in MKTX as recently as Q4 2025.

Tudor Investment Corp first reported a position in MKTX in Q4 2015 and has held it in 18 quarters since. The position peaked at $22.6M in Q3 2025. 397 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

  • Tudor Investment Corp held 137,847 shares of MarketAxess Holdings worth $15.6M as of Q2 2026.
  • MarketAxess Holdings was a new Tudor Investment Corp position in Q2 2026.
  • MarketAxess Holdings made up 0.02% of Tudor Investment Corp's portfolio in Q2 2026, its #595 holding.
  • Tudor Investment Corp first reported a position in MarketAxess Holdings in Q4 2015 and has held it in 18 quarters since.
  • Tudor Investment Corp's MarketAxess Holdings position peaked at $22.6M in Q3 2025.
  • 397 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on Tudor Investment Corp's 13F filing for Q2 2026, filed 14 Aug 2026.