Adage Capital Partners
MIAX

Adage Capital Partners’s Miami International Holdings MIAX Stock Holding History

Adage Capital Partners’s Portfolio MIAX Stock Details MIAX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$48.5M Buy
1,246,999
+365,670
+41% +$15.1M 0.07% 256
2025
Q4 		$39.1M Buy
881,329
+249,677
+40% +$11.1M 0.06% 310
2025
Q3 		$25.4M Buy
+631,652
New +$23.1M 0.04% 399

Other funds holding MIAX

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
HKAM
Horizon Kinetics Asset Management New York $9.23B AUM 27.52% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Adage Capital Partners's MIAX Position: Q1 2026 in Review

Adage Capital Partners increased its Miami International Holdings (MIAX) stake by 41% in Q1 2026, buying an estimated $15.1M and bringing the position to 1,246,999 shares worth $48.5M. The position accounts for 0.07% of the portfolio, ranked #256.

Adage Capital Partners first reported a position in MIAX in Q3 2025 and has held it in 3 quarters since. 201 funds tracked by Wall St. Rank hold MIAX as of Q1 2026.

  • Adage Capital Partners held 1,246,999 shares of Miami International Holdings worth $48.5M as of Q1 2026.
  • Adage Capital Partners bought 365,670 Miami International Holdings shares in Q1 2026, an estimated $15.1M.
  • Miami International Holdings made up 0.07% of Adage Capital Partners's portfolio in Q1 2026, its #256 holding.
  • Adage Capital Partners first reported a position in Miami International Holdings in Q3 2025 and has held it in 3 quarters since.
  • 201 funds tracked by Wall St. Rank held Miami International Holdings as of Q1 2026.

Based on Adage Capital Partners's 13F filing for Q1 2026, filed 15 May 2026.