Adage Capital Partners
MKTX icon

Adage Capital Partners’s MarketAxess Holdings MKTX Stock Holding History

Adage Capital 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
2025
Q3 		– Sell
-34,350
Closed -$7.67M – 943
2025
Q2 		$7.67M Buy
34,350
+9,900
+40% +$2.18M 0.01% 660
2025
Q1 		$5.29M Buy
24,450
+11,200
+85% +$2.35M 0.01% 692
2024
Q4 		$3M Sell
13,250
-22,300
-63% -$5.87M 0.01% 767
2024
Q3 		$9.11M Sell
35,550
-800
-2% -$187K 0.02% 625
2024
Q2 		$7.29M Sell
36,350
-800
-2% -$165K 0.01% 657
2024
Q1 		$8.15M Buy
37,150
+300
+0.8% +$70.9K 0.02% 635
2023
Q4 		$10.8M Sell
36,850
-600
-2% -$145K 0.02% 575
2023
Q3 		$8M Sell
37,450
-100
-0.3% -$24.2K 0.02% 607
2023
Q2 		$9.82M Sell
37,550
-100
-0.3% -$29.8K 0.02% 577
2023
Q1 		$14.7M Sell
37,650
-600
-2% -$212K 0.03% 514
2022
Q4 		$10.7M Sell
38,250
-100
-0.3% -$25.7K 0.03% 616
2022
Q3 		$8.53M Sell
38,350
-1,000
-3% -$257K 0.02% 679
2022
Q2 		$10.1M Sell
39,350
-400
-1% -$109K 0.02% 670
2022
Q1 		$13.5M Sell
39,750
-800
-2% -$290K 0.03% 606
2021
Q4 		$16.7M Buy
40,550
+800
+2% +$316K 0.03% 541
2021
Q3 		$16.7M Sell
39,750
-600
-1% -$275K 0.03% 534
2021
Q2 		$18.7M Sell
40,350
-1,000
-2% -$476K 0.04% 495
2021
Q1 		$20.6M Sell
41,350
-800
-2% -$427K 0.04% 440
2020
Q4 		$24M Sell
42,150
-300
-0.7% -$163K 0.05% 371
2020
Q3 		$20.4M Sell
42,450
-1,400
-3% -$692K 0.05% 374
2020
Q2 		$22M Buy
43,850
+400
+0.9% +$186K 0.06% 369
2020
Q1 		$14.4M Buy
43,450
+14,200
+49% +$4.95M 0.04% 391
2019
Q4 		$11.1M Sell
29,250
-1,600
-5% -$587K 0.03% 523
2019
Q3 		$10.1M Sell
30,850
-1,650
-5% -$591K 0.02% 518
2019
Q2 		$10.4M Buy
+32,500
New +$9.39M 0.03% 526

Other funds holding MKTX

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
HSBC Holdings
HSBC Holdings London, United Kingdom $239B AUM 42.32% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
GAM
GuardCap Asset Management London, United Kingdom $1.41B AUM 8.17% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Adage Capital Partners's MKTX Position: Q3 2025 in Review

Adage Capital Partners sold out of MarketAxess Holdings (MKTX) in Q3 2025, closing a stake of 34,350 shares — an estimated $7.67M sold.

Adage Capital Partners first reported a position in MKTX in Q2 2019 and held it in 25 quarters. The position peaked at $24M in Q4 2020. 452 funds tracked by Wall St. Rank hold MKTX as of Q3 2025.

  • Adage Capital Partners reported no remaining MarketAxess Holdings position as of Q3 2025 after selling out during the quarter.
  • Adage Capital Partners sold 34,350 MarketAxess Holdings shares in Q3 2025, an estimated $7.67M.
  • Adage Capital Partners first reported a position in MarketAxess Holdings in Q2 2019 and held it in 25 quarters.
  • Adage Capital Partners's MarketAxess Holdings position peaked at $24M in Q4 2020.
  • 452 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q3 2025.

Based on Adage Capital Partners's 13F filing for Q3 2025, filed 14 Nov 2025.