Miami International Holdings Q1 2026 Earnings Review: Unpacking a Record-Breaking Quarter and the Impending Bloomberg Catalyst

Miami International Holdings, Inc. (MIAX) has delivered a standout first quarter for 2026, characterized by record top-line revenue, massive margin expansion, and pivotal strategic maneuvers. Driven by a highly scalable technological infrastructure and powerful secular tailwinds in the multi-listed options market, MIAX is cementing its status as a premier global, multi-asset exchange operator.

During the Q1 2026 earnings call, MIAX leadership—including CEO Thomas Gallagher, CFO Lance Emmons, and Chief Strategy Officer Shelly Brown—provided a granular look at the company’s operational mechanics, competitive advantages, and the highly anticipated launch of its proprietary Bloomberg Equity Index Futures.

Here is an exhaustive, highly detailed breakdown of MIAX’s Q1 2026 performance and strategic outlook.


1. A Granular Look at Q1 Financial Performance

The first quarter demonstrated the immense operating leverage inherent in MIAX’s business model, where revenues are scaling rapidly against a largely fixed cost base.

  • Top-Line Growth: Total net revenue hit a record $129 million, representing a 40% year-over-year (YoY) increase. Even excluding the inorganic contribution from the June 2025 acquisition of The International Stock Exchange (TISE), MIAX generated robust organic net revenue growth of 35%.
  • Profitability and Margins: Adjusted EBITDA surged 66% YoY to $66 million. This drove a remarkable 800 basis point expansion in adjusted EBITDA margin, which crossed the 50% threshold to land at 51%. Management noted that as the futures and international segments scale, these incremental revenues will come at very high margins.
  • Earnings Distortions (GAAP vs. Adjusted): GAAP net income for the quarter spiked to $170 million. However, this includes two massive, non-recurring items:
    1. $51 million gain from the sale of 90% of MIAXdx (now Rothera).
    2. $70 million income tax benefit resulting from the release of a valuation allowance on deferred tax assets—a testament to MIAX achieving 12 consecutive quarters of cumulative positive pretax income.
    • Adjusting for these, earnings still grew an impressive 51% YoY to $45 million ($0.42 adjusted diluted EPS).

2. Segment-by-Segment Deep Dive

U.S. Options: The Crown Jewel

The options segment continues to dominate MIAX’s revenue profile, generating $111 million (up 37% YoY). Industry Average Daily Volume (ADV) was strong at 63 million contracts (up 17% YoY), driven by geopolitical volatility and rate uncertainty. MIAX outpaced the industry, growing its ADV by 27% to 10.9 million contracts.

  • Market Share Dynamics: MIAX captured 17.3% of the U.S. multi-listed options market. Management emphasized they manage for the „right mix of volume and economics rather than a headline share number.“ This means actively shedding lower-quality or negative-capture volume in favor of higher Revenue Per Contract (RPC) flow.
  • Short-Dated & Single-Name Options: MIAX is capturing an outsized 18% to 20% market share in the recently launched single-name, short-dated (Monday/Wednesday) expirations across 9 core equity names. The company views the impending wave of „mega IPOs“ later in 2026 as a major future catalyst for options volume.
  • Non-Transaction Revenue: This metric surged 45% YoY. CFO Lance Emmons noted this was split evenly down the middle: 50% from new member connections and 50% from fee increases (instituted Jan 1) combined with the expiration of introductory fee waivers on the Sapphire exchange. Additionally, Q1 saw a one-time $2.7 million ad hoc historical market data sale.
  • The Sapphire Trading Floor: Open outcry trading remains highly lucrative. MIAX’s physical Sapphire floor saw its first 1-million-contract day in April. MIAX has steadily grown its share of industry floor volume from 5% to roughly 10%. Because floor trades (often complex, high-touch orders) carry higher capture rates than electronic volume, this is a massive tailwind for RPC.

U.S. Futures: The Bloomberg Launch Sequence

While Q1 futures revenue dipped slightly YoY to $5 million, the segment is entirely focused on the impending launch of the Bloomberg Equity Index Futures on the Onyx platform. MIAX views this as a true challenger to the entrenched SPX/VIX monopoly.

  • The Structural Advantage: CEO Tom Gallagher highlighted that unlike competing indices (like the S&P 500) which rely on subjective committees for index inclusion, Bloomberg utilizes a transparent, rules-based algorithmic methodology. This eliminates delays and subjectivity, allowing newly minted public companies to be added much faster.
  • Clearing Efficiencies: In a massive win for market participants, these new futures will clear at the Options Clearing Corporation (OCC). This gives member firms significant margin and capital efficiencies as part of their broader equity derivatives portfolios.
  • The Rollout Strategy (Staggered & Deliberate):
    • May 17: Launch of the B100 contract. MIAX specifically chose this retail-sized contract first because retail brokerage firms indicated immense customer appetite for software and technology-heavy indices.
    • June 1: Launch of the B500 TEB (a smaller-sized 500 index tailored for retail).
    • June 8: Launch of the full-sized, institutional B500 contract.
  • Electronic vs. Floor Debate: Chief Strategy Officer Shelly Brown noted a philosophical difference regarding index options. While legacy competitors keep index options heavily tied to physical trading floors (and restrict electronic trade sizes to avoid internal cannibalization), MIAX believes an electronic-first approach creates tighter markets and better liquidity for the end-user.

U.S. Equities & International Operations

  • Equities: The cash equities segment achieved a massive milestone, moving from an inverted capture rate in Q1 2025 to a positive net capture in Q1 2026. This drove a near doubling of revenue to $7 million and pushed the segment into positive Adjusted EBITDA territory ($899,000).
  • International: Following the TISE acquisition, international revenues skyrocketed from $1 million to $6 million YoY. The company is actively integrating TISE with the Bermuda Stock Exchange (BSX) to cross-sell to global debt issuers and listings clients.

3. Capital Allocation and Strategic Maneuvering

  • The MIAXdx (Rothera) Divestiture: During the quarter, MIAX completed the sale of 90% of MIAXdx (now rebranded as Rothera) to a joint venture established by Robinhood Markets and Susquehanna International Group (SIG). MIAX retains a 10% equity stake in the venture, carried at cost. Management noted that while investors shouldn’t model run-rate revenues from this, the retained stake offers valuable long-term optionality and upside in the rapidly growing prediction market ecosystem.
  • Tokenization: When asked by analysts about the growing trend of asset tokenization, Gallagher was blunt: it is not a core focus. MIAX is dedicating all resources to its core options business and the massive Bloomberg futures launch.
  • Balance Sheet Power: MIAX ended Q1 with a staggering $551 million in cash and essentially zero debt ($1.5 million). This „fortress“ balance sheet gives MIAX immense competitive firepower to fund organic growth, support the marketing required for the Bloomberg launch, and execute opportunistic M&A.

4. 2026 Forward Guidance

MIAX management reaffirmed its full-year 2026 guidance, advising investors to model for the following:

  • Adjusted Operating Expenses: $265 million to $275 million. Crucially, expenses will trend higher in Q2 and Q3 due to increased marketing spend, quoting incentives for market makers on the Bloomberg products, and the nationwide „Excellence in Every Exchange“ ad campaign.
  • Share-Based Compensation: $27 million to $30 million.
  • Capital Expenditures: $40 million to $45 million (hardware purchases were deliberately front-loaded in Q1 to beat AI-driven price inflation in the broader tech market).
  • Forward Tax Rate: 27% to 29% for the remainder of the year.

Conclusion

Miami International Holdings is firing on all cylinders. The first quarter of 2026 proves that MIAX is not merely riding industry volume tailwinds, but actively engineering its own growth through calculated pricing strategies, floor trading enhancements, and accretive M&A. With the launch of the Bloomberg Equity Index futures poised to challenge legacy exchange monopolies, MIAX is transitioning from a successful options exchange into a formidable, diversified global market infrastructure provider.