Citigroup
MIAX

Citigroup’s Miami International Holdings MIAX Stock Holding History

Citigroup’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 		$2.87M Sell
77,286
-28,135
-27% -$1.26M ﹤0.01% 2634
2026
Q1 		$4.1M Buy
105,421
+93,483
+783% +$3.85M ﹤0.01% 2118
2025
Q4 		$530K Buy
11,938
+11,434
+2,269% +$510K ﹤0.01% 3545
2025
Q3 		$20.3K Buy
+504
New +$18.4K ﹤0.01% 4809

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

Citigroup's MIAX Position: Q2 2026 in Review

Citigroup reduced its Miami International Holdings (MIAX) stake by 27% in Q2 2026, selling an estimated $1.26M and leaving 77,286 shares worth $2.87M. The position accounts for ﹤0.01% of the portfolio, ranked #2634.

Citigroup first reported a position in MIAX in Q3 2025 and has held it in 4 quarters since. The position peaked at $4.1M in Q1 2026. 206 funds tracked by Wall St. Rank hold MIAX as of Q2 2026.

  • Citigroup held 77,286 shares of Miami International Holdings worth $2.87M as of Q2 2026.
  • Citigroup sold 28,135 Miami International Holdings shares in Q2 2026, an estimated $1.26M.
  • Miami International Holdings made up ﹤0.01% of Citigroup's portfolio in Q2 2026, its #2634 holding.
  • Citigroup first reported a position in Miami International Holdings in Q3 2025 and has held it in 4 quarters since.
  • Citigroup's Miami International Holdings position peaked at $4.1M in Q1 2026.
  • 206 funds tracked by Wall St. Rank held Miami International Holdings as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.