MIAX files to list binary index and company-KPI options, targeting first index launch in 2027

Miami International Holdings said on 3 November that its MIAX Options business had submitted proposed rule filings to the US Securities and Exchange Commission for two families of cash-settled binary options. One would reference whether an equity benchmark closes above or below a specified level. The other would reference an objective company key performance indicator, such as reported revenue or earnings per share, against a preset threshold. Both are planned products and subject to regulatory review. The filing announcement is not evidence that the contracts have begun trading or that brokers can currently route orders in them.[1]

MIAX identified examples of benchmark underlyings including the Bloomberg 500 and Bloomberg 100 indices, for which it has an exclusive licence in the planned product context. The operator aims to launch the binary index contracts in 2027, subject to SEC review and operational readiness, with clearing and settlement through the Options Clearing Corporation. It provided no firm launch date for company-KPI binaries, making those a distinctly later or less-defined stage. A headline putting both products into a guaranteed 2027 rollout would therefore overstate the information released.[1]

A binary option is economically different from a linear index future. The defined event produces an agreed cash outcome rather than a continuously proportional profit for every additional index point. For corporate metrics, precision becomes especially important: the relevant filing, accounting definition, reporting period, restatement policy and threshold all need to be identified. Two vendors can report an earnings figure using different adjusted definitions; an exchange contract needs an authoritative settlement source rather than a loose headline figure.[1]

MIAX places these proposed instruments in the framework for securities options on SEC-registered exchanges. That contrasts with products regulated under a commodity-derivatives or foreign prediction-market arrangement, even if all appear to trade a yes-or-no outcome. The CFTC's event-contract framework is not interchangeable with an SEC security-options filing. A broker contemplating access would still need the actual approved rule text, eligibility, suitability procedures, margin or premium rules and OCC clearing arrangements for the specific class.[1]

Why contract definitions will matter

The commercial opportunity is new listed exposure to both broad market levels and company-specific reported results. But the primary record establishes intent and filings, not a visible order book, market-maker commitments, executable spreads or customer demand. Until the final specifications appear, it is impossible to calculate a reliable comparison of all-in transaction costs or the effect of a contract on a portfolio's event risk. The filing also does not prove how the proposed KPI options would handle corrections or competing data releases.[1]

The next checkpoints are public SEC review of the proposed rule changes, exchange notices identifying approved contract terms and OCC readiness. After a real launch, trading volume and spread data can show whether these markets attract sustained participation. For now, the precise development is an exchange operator seeking permission to add cash-settled binary securities options under a familiar clearing structure, with milestones and uncertainties expressly differentiated. A filing date, an approval, a product being available and a contract receiving the first actual execution are separate reporting milestones.[1]

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