An outcome stream provides live updates whenever a prediction market finishes and the result becomes official. Instead of manually checking individual markets, analysts and tools can subscribe to the stream to see each new resolution as soon as it occurs. This creates an organized flow of settlement information across many events.
Platforms such as Polymarket, Kalshi, Myriad, and Manifold produce outcome data that can be collected into an outcome stream. Each update includes the winning outcome, the resolution timestamp, and any relevant metadata. This helps users follow the resolution lifecycle across markets and understand how forecasts performed once the event concluded. Over time, the outcome stream becomes a reliable source of prediction markets data for accuracy analysis, backtesting, and performance tracking.
Outcome streams are especially useful for researchers, automated systems, and dashboards studying how real-world events unfold and how prediction markets interpret them.
Outcome streams deliver immediate, trustworthy, and structured settlement information. They strengthen forecasting analysis by tying raw prediction markets data to verified real-world results.
Outcome streams ensure that users get final results as soon as they are available. This reduces delays, eliminates guesswork, and supports faster analysis. By providing continuous resolution data, they improve transparency and help analysts understand how markets performed across many events. This leads to cleaner and more actionable prediction markets data.
Outcome streams allow analysts to connect final results with historical probability paths. They make it easy to measure calibration, detect resolution latency, and compare forecasts to outcomes at scale. This creates a full audit trail that strengthens forecasting research and improves interpretation of prediction markets data across categories.
Analysts can track how frequently events resolve, identify categories with high uncertainty, evaluate forecasting accuracy, and detect patterns in dispute or correction cases. Outcome stream data also reveals how well different event types are understood by traders. These insights help refine prediction markets data usage and improve forecasting systems.
A forecasting team subscribes to a Polymarket outcome stream to track when major crypto, political, and regulatory markets close. Whenever a market resolves, the outcome appears instantly in their dashboard, allowing the team to compare final results with the market’s last probability and assess forecasting accuracy in real time.
Outcome streams depend on structured, time-stamped settlement data. FinFeed's Prediction Markets API provides prediction markets data—including outcomes, resolution times, and full historical paths—that developers can use to generate outcome streams, automate reporting, and build tools for large-scale accuracy analysis.
