Alyeska Investment Group
MIAX

Alyeska Investment Group’s Miami International Holdings MIAX Stock Holding History

Alyeska Investment Group’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
Q2 		$31.5M Sell
848,750
-598,704
-41% -$26.8M 0.08% 270
2026
Q1 		$56.3M Buy
1,447,454
+161,368
+13% +$6.65M 0.16% 170
2025
Q4 		$57.1M Buy
1,286,086
+20,350
+2% +$908K 0.16% 161
2025
Q3 		$51M Buy
+1,265,736
New +$46.3M 0.15% 175

Other funds holding MIAX

HKAM
Horizon Kinetics Asset Management New York $8.82B AUM 23.05% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
JD6
J Digital 6 Chicago, Illinois $169M AUM 111.5% 1-Year Est. Return
William Blair & Company
William Blair & Company Chicago, Illinois $38.4B AUM 25.71% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return

Alyeska Investment Group's MIAX Position: Q2 2026 in Review

Alyeska Investment Group reduced its Miami International Holdings (MIAX) stake by 41% in Q2 2026, selling an estimated $26.8M and leaving 848,750 shares worth $31.5M. The position accounts for 0.08% of the portfolio, ranked #270.

Alyeska Investment Group first reported a position in MIAX in Q3 2025 and has held it in 4 quarters since. The position peaked at $57.1M in Q4 2025. 206 funds tracked by Wall St. Rank hold MIAX as of Q2 2026.

  • Alyeska Investment Group held 848,750 shares of Miami International Holdings worth $31.5M as of Q2 2026.
  • Alyeska Investment Group sold 598,704 Miami International Holdings shares in Q2 2026, an estimated $26.8M.
  • Miami International Holdings made up 0.08% of Alyeska Investment Group's portfolio in Q2 2026, its #270 holding.
  • Alyeska Investment Group first reported a position in Miami International Holdings in Q3 2025 and has held it in 4 quarters since.
  • Alyeska Investment Group's Miami International Holdings position peaked at $57.1M in Q4 2025.
  • 206 funds tracked by Wall St. Rank held Miami International Holdings as of Q2 2026.

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