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Support multi-outcome markets with probability sum > 100%

Issue #70 | State: OPEN | Created: 2026-01-22T10:50:53Z

Updated: 2026-01-22T10:53:16Z | Closed: N/A

Summary

Add support for markets where the sum of all outcome probabilities can exceed 100%, such as "Top N" prediction markets.

Use Case

Markets like "Who will be in the top 10 most searched people of 2025?" where:

Each person has an independent YES/NO market
Multiple outcomes can resolve to YES simultaneously
Total probability across all outcomes naturally exceeds 100%

Reference: Polymarket Top 5 Most Searched People

Requirements

Support creating linked markets under a single event
Allow multiple outcomes to resolve YES
Handle collateral and payouts for overlapping outcomes
UI to display grouped markets as a single event

Technical Considerations

Market resolution logic for multi-winner scenarios
Collateral management across linked markets
Oracle design for batch resolution