PCM
MIAX

Portolan Capital Management’s Miami International Holdings MIAX Stock Holding History

Portolan Capital 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
Q2 		– Sell
-128,819
Closed -$5.01M – 178
2026
Q1 		$5.01M Buy
+128,819
New +$5.31M 0.27% 97

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

Portolan Capital Management's MIAX Position: Q2 2026 in Review

Portolan Capital Management sold out of Miami International Holdings (MIAX) in Q2 2026, closing a stake of 128,819 shares — an estimated $5.01M sold.

Portolan Capital Management first reported a position in MIAX in Q1 2026 and held it in 1 quarter. The position peaked at $5.01M in Q1 2026. 207 funds tracked by Wall St. Rank hold MIAX as of Q2 2026.

  • Portolan Capital Management reported no remaining Miami International Holdings position as of Q2 2026 after selling out during the quarter.
  • Portolan Capital Management sold 128,819 Miami International Holdings shares in Q2 2026, an estimated $5.01M.
  • Portolan Capital Management first reported a position in Miami International Holdings in Q1 2026 and held it in 1 quarter.
  • Portolan Capital Management's Miami International Holdings position peaked at $5.01M in Q1 2026.
  • 207 funds tracked by Wall St. Rank held Miami International Holdings as of Q2 2026.

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