What Is Options Price Reporting Authority (OPRA)?
The Options Price Reporting Authority (OPRA) is the U.S. system that consolidates and distributes options market data from all U.S.-listed options exchanges. In practical terms, it gathers quotation (bid/offer) and last-sale information from the exchanges, consolidates it, and disseminates the data across the industry.
OPRA operates under a national market system plan and acts as the options Securities Information Processor (SIP). That means OPRA isn’t just one exchange’s data. It is the market-wide framework that standardizes how options quotes and trades from participating exchanges are collected and distributed to firms.
Operationally, SIAC handles the consolidation process. SIAC gathers quote and last-sale information from each participant exchange, consolidates it, and disseminates the data to the industry on OPRA’s behalf.
Who Participates in OPRA?
The Options Price Reporting Authority (OPRA) is made up of the U.S. national securities exchanges that are approved to list and trade exchange-traded options. Today, 17 options exchanges participate in OPRA, each contributing their quotes and trades to the consolidated options market data feed that powers the options Securities Information Processor (SIP).
These OPRA participant exchanges include venues operated by BOX Exchange, Cboe Global Markets (Cboe Options, C2, BZX, and EDGX), MEMX Options, MIAX (MIAX Options, Pearl, Emerald, and Sapphire), Nasdaq (NOM, PHLX, ISE, GEMX, MRX, and Nasdaq Options Market), and NYSE (American Options and Arca Options). Each exchange sends its quote and trade data to the OPRA processor, where it is consolidated and distributed as the official consolidated view of the U.S. listed options market.
Because each exchange continuously publishes quotes across thousands of option series, the combined activity from all OPRA participants generates extremely high message volumes—one of the defining characteristics of the modern options market data environment.
What’s the Difference Between OPRA and Direct Exchange Feeds?
The main difference between OPRA and direct exchange feeds is that OPRA provides a consolidated view of options quotes and trades across all U.S. exchanges in a single feed. Direct exchange feeds, by comparison, come straight from individual venues and reflect only that exchange’s activity.
Options Price Reporting Authority is often referred to as the options SIP because it aggregates quotes and trades from every participating exchange into one consolidated stream. For many firms, this makes it the easiest way to gain broad visibility into the U.S.-listed options market without having to onboard and maintain multiple proprietary exchange feeds.
Direct feeds are different. Individual exchanges distribute these feeds as proprietary market data products. These feeds often include additional message types, more detailed venue information, and deeper order book data than the consolidated OPRA feed. Some exchanges, for example, offer “deep” options feeds that provide full depth-of-book visibility rather than just top-of-book quotes.
Many firms treat OPRA as the essential starting point for visibility into U.S.-listed options. At the same time, latency- and microstructure-sensitive use cases often supplement OPRA with direct feeds for more detailed venue insight and faster, venue-native delivery.
Why OPRA Exists
OPRA exists to provide a consolidated view of options prices and trades across all U.S. options exchanges. By aggregating quote and last-sale information from every participating venue, OPRA allows market participants to see the best available prices for a given option series across the market.
This consolidated view is critical in a fragmented market where the same option can trade on many different exchanges simultaneously. Without a central consolidation mechanism, firms would need to monitor each venue independently to understand where liquidity and the best prices are available.
When disseminated in real time, consolidated options market data supports price discovery and helps market participants evaluate execution quality across venues. The SEC has described consolidated options data as enabling participants to identify the best available price, monitor broker execution, and support best execution outcomes.
Who Uses OPRA
OPRA users are a wide range of market participants who rely on consolidated options prices and trades. Broker-dealers, market makers, asset managers, trading platforms, and market data vendors all use OPRA as a baseline view of activity across U.S.-listed options exchanges.
While traders may rely on OPRA to monitor options chains in real time, the feed supports far more than front-end trading screens. OPRA data is an input for pricing models, risk management systems, market surveillance tools, and transaction cost analysis.
Because OPRA pulls together quotes and trades from every participating exchange, it provides a single reference point for what’s happening across the listed options market. Firms rely on it to monitor activity, assess execution quality, and feed reporting and analytics systems.
Conclusion
For decades, the Options Price Reporting Authority (OPRA) has served as the backbone of consolidated options market data in the United States, giving market participants a standardized way to view quotes and trades across exchanges. But as options trading volumes continue to grow and message rates climb, consuming OPRA efficiently has become an increasingly complex infrastructure challenge.
Firms that rely on options data today must balance the need for comprehensive market visibility with the operational realities of processing massive volumes of real-time messages. Managing connectivity, normalization, capacity planning, and downstream distribution can require significant engineering and infrastructure investment.
Exegy’s Axiom for OPRA handles the infrastructure required to consume OPRA and delivers normalized data through a fully managed service. That allows firms to access consolidated options market data without building and maintaining the processing environment themselves.
If you want to explore how a managed OPRA feed can reduce operational overhead while maintaining high-performance market data delivery, you can learn more in our Axiom OPRA market data product sheet.
