What Is a Prediction Market?
A prediction market represents a specialised financial venue where traders exchange contracts tied to the likelihood of forthcoming occurrences. The cost of any given contract mirrors the aggregate probability assessment held by market participants regarding whether that event will materialise. PolyGram operates as a UK-based prediction market platform offering exposure to international outcomes.
How Do Prediction Markets Work?
Each prediction market contract centres on a straightforward proposition: does Event X occur before Date Y? Consider this illustration: "Will the Labour Party secure victory in the forthcoming UK general election?" Two distinct contract types exist:
- YES: Should Labour prevail, this contract settles at $1.00
- NO: Should Labour fail to prevail, this contract settles at $1.00
When YES trades at $0.65, the collective market view suggests a 65% likelihood of Labour's success. Acquire YES if you believe the probability is higher; acquire NO if you believe it is lower. Correct predictions generate returns; incorrect ones result in capital loss.
Prediction Markets vs Traditional Betting
- Absence of overround: Traditional bookmakers embed a profit margin — prediction markets eliminate this. YES and NO prices combine to approximately $1.00
- Early exit capability: Liquidate your position at any moment prior to final settlement
- Full transparency: Market participants access complete pricing information and order book visibility
- Distributed intelligence: Contract valuations synthesise insights from numerous market participants — typically surpassing traditional polling methodologies in accuracy
Types of Prediction Markets
Political Markets
Electoral contests, public sentiment measures, legislative outcomes, governmental transitions. These categories command the greatest trading volume and liquidity across venues such as Polymarket.
Sports Markets
Game results, championship victors, athlete performance metrics, divisional standings.
Crypto Markets
Digital asset valuations, blockchain infrastructure changes, institutional investment approvals, regulatory announcements.
World Event Markets
Macroeconomic metrics, geological phenomena, technological breakthroughs, cultural accolades.
Are Prediction Markets Legal in the UK?
Prediction markets occupy an ambiguous regulatory position within the United Kingdom. The Gambling Commission has neither formally authorised nor explicitly prohibited them. Operators like PolyGram utilise blockchain-based settlement mechanisms, distinguishing their model from conventional gambling infrastructure.
How Accurate Are Prediction Markets?
Empirical evidence demonstrates that prediction markets consistently surpass both specialist analysts and conventional survey methodologies in forecast precision. Polymarket's track record includes accurate predictions for the 2024 US presidential election, numerous continental European electoral contests, and significant cryptocurrency developments—often weeks or months in advance.