Teekell Judson Gray sells $108,000 in Miami International Holdings By Investing.com

Adjusted diluted EPS of $0.52 in Q4 2025 vs $0.33 consensus and revenue of $125M (+52% YoY) indicate a strong beat. MIAX Exchange Group average daily options volume rose 25.4% in Feb 2026 to 10.8M contracts, helping capture a 17.1% share of the U.S. equity options market. Director Teekell Judson Gray sold 2,700 shares on April 2, 2026 at $40.00 under a Rule 10b5-1 plan and now directly owns 59,338 shares; director Lee Becker will not stand for reelection but remains until the 2026 annual meeting.

Analysis

MIAX’s recent share gains reflect a structural lever: options flow is relatively sticky once routable liquidity and fee schedules align, so modest share gains can produce outsized revenue growth for a smaller exchange. The second-order winners are not just the exchange itself but the low-latency routing vendors, market-makers that can scale commitments on a single venue, and clearing partners that pick up incremental contract volume; incumbents with larger fixed-cost bases face margin pressure if they must defend share via rebates.

Key risks are regulatory and cyclical rather than purely operational. A regulatory push on rebate structures or an aggressive price response by a deeper-pocketed competitor would compress per-contract take rates quickly; similarly, a 20-30% normalization of options volumes from elevated levels would materially trim forward free cash flow visibility within 3–9 months. Tech outages or any execution-quality hiccup would have asymmetric impact for a fast-growing, incumbent-challenging venue — reputational damage converts directly into lost routing arrangements.

Tactically, the path to further upside runs through sustained relative ADV and product expansion (e.g., complex order types, international flow). The consensus appears to underweight the fragility of sustained share gains against active retaliation from incumbents that can subsidize volumes for longer. That makes a structured, capped-risk long the preferred way to harvest the upside while keeping exposure limited to the event and competitive-risk windows.

Key Decisions for Investors

• Buy a 6–9 month MIAX call spread (buy ATM, sell ~+25% OTM) sized to risk 1–2% of portfolio — target asymmetric payoff of ~2.5x if shares rise ~25–35% within 6–9 months; cut position if MIAX falls >12% from entry or if announced fee/rebate changes from a major competitor materialize.
• Relative trade: long MIAX / short CBOE Global Markets (equal notional) for 9–12 months to express continued share capture — target 20–40% relative outperformance; reduce if pair moves against by 10% or if industry-wide ADV contracts by >20% quarter-over-quarter.
• Event hedge: buy 3-month MIAX puts (small size) to protect against short-term execution or regulatory shocks during the next 90 days — acceptable insurance cost up to 0.5% portfolio to limit downside from a reputational or policy-triggered volume shock.
• Monitor catalysts (monthly ADV releases, competitor fee announcements, any exchange outage reports) and be prepared to take profits if MIAX achieves a sustained +30–50% re-rating in under 6 months — that would likely price in most sustainable share gains and increase regulatory attention.