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MIAX position history

The shares of Miami International (MIAX) that HORIZON KINETICS ASSET MANAGEMENT LLC reported in each quarter’s 13F.

Equity, COM

Shares held by quarter

New Add Reduce Exit

  1. 2025 Q3: 1,382,403 shares, $56M, 0.68% of portfolio, New
  2. 2025 Q4: 1,819,798 shares, $81M, 1.1% of portfolio, Add +31.6%
  3. 2026 Q1: 3,451,549 shares, $134M, 1.5% of portfolio, Add +89.7%
  4. 2026 Q2: 7,842,173 shares, $291M, 3.3% of portfolio, Add +127.2%
Holdings date Value % of holdings Shares Filing date All 13F holders