SFM
MIAX

Soros Fund Management’s Miami International Holdings MIAX Stock Holding History

Soros Fund Management’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 		$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

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
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Soros Fund Management's MIAX Position: Q1 2026 in Review

Soros Fund Management reduced its Miami International Holdings (MIAX) stake by 14% in Q1 2026, selling an estimated $905K and leaving 132,600 shares worth $5.16M. The position accounts for 0.06% of the portfolio, ranked #177.

Soros Fund Management first reported a position in MIAX in Q3 2025 and has held it in 3 quarters since. The position peaked at $6.86M in Q4 2025. 201 funds tracked by Wall St. Rank hold MIAX as of Q1 2026.

  • Soros Fund Management held 132,600 shares of Miami International Holdings worth $5.16M as of Q1 2026.
  • Soros Fund Management sold 21,960 Miami International Holdings shares in Q1 2026, an estimated $905K.
  • Miami International Holdings made up 0.06% of Soros Fund Management's portfolio in Q1 2026, its #177 holding.
  • Soros Fund Management first reported a position in Miami International Holdings in Q3 2025 and has held it in 3 quarters since.
  • Soros Fund Management's Miami International Holdings position peaked at $6.86M in Q4 2025.
  • 201 funds tracked by Wall St. Rank held Miami International Holdings as of Q1 2026.

Based on Soros Fund Management's 13F filing for Q1 2026, filed 15 May 2026.