GS
MIAX

George Soros’s Miami International Holdings MIAX Stock Holding History

George Soros’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 		– Sell
-132,600
Closed -$5.16M – 340
2026
Q1 		$5.16M Sell
132,600
-21,960
-14% -$905K 0.06% 177
2025
Q4 		$6.86M Buy
154,560
+50,300
+48% +$2.24M 0.08% 154
2025
Q3 		$4.2M Buy
+104,260
New +$3.81M 0.06% 152

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

George Soros's MIAX Position: Q2 2026 in Review

George Soros sold out of Miami International Holdings (MIAX) in Q2 2026, closing a stake of 132,600 shares — an estimated $5.16M sold.

George Soros first reported a position in MIAX in Q3 2025 and held it in 3 quarters. The position peaked at $6.86M in Q4 2025. 204 funds tracked by Wall St. Rank hold MIAX as of Q2 2026.

  • George Soros reported no remaining Miami International Holdings position as of Q2 2026 after selling out during the quarter.
  • George Soros sold 132,600 Miami International Holdings shares in Q2 2026, an estimated $5.16M.
  • George Soros first reported a position in Miami International Holdings in Q3 2025 and held it in 3 quarters.
  • George Soros's Miami International Holdings position peaked at $6.86M in Q4 2025.
  • 204 funds tracked by Wall St. Rank held Miami International Holdings as of Q2 2026.

Based on Soros Fund Management's 13F filing for Q2 2026, filed 14 Aug 2026.