Vanguard Capital Management
MIAX

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

Vanguard 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 		$118M Buy
3,165,686
+1,750,707
+124% +$78.3M ﹤0.01% 1473
2026
Q1 		$55.1M Buy
+1,414,979
New +$58.3M ﹤0.01% 1810

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
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
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

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

Vanguard Capital Management increased its Miami International Holdings (MIAX) stake by 124% in Q2 2026, buying an estimated $78.3M and bringing the position to 3,165,686 shares worth $118M. The position accounts for ﹤0.01% of the portfolio, ranked #1473.

Vanguard Capital Management first reported a position in MIAX in Q1 2026 and has held it in 2 quarters since. 204 funds tracked by Wall St. Rank hold MIAX as of Q2 2026.

  • Vanguard Capital Management held 3,165,686 shares of Miami International Holdings worth $118M as of Q2 2026.
  • Vanguard Capital Management bought 1,750,707 Miami International Holdings shares in Q2 2026, an estimated $78.3M.
  • Miami International Holdings made up ﹤0.01% of Vanguard Capital Management's portfolio in Q2 2026, its #1473 holding.
  • Vanguard Capital Management first reported a position in Miami International Holdings in Q1 2026 and has held it in 2 quarters since.
  • 204 funds tracked by Wall St. Rank held Miami International Holdings as of Q2 2026.

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