Conditional Prediction Markets Explained: How Nested Forecasts Work

Conditional prediction markets tackle a specific question: "Should X occur, what is the likelihood of Y?" They represent a sophisticated mechanism for disentangling causal pathways, modelling regulatory shifts, and surfacing insights that standard unconditional markets cannot capture.

How Conditional Markets Work

A fundamental conditional market setup looks like this:

• Market A: "Will the Fed cut rates in June?" (unconditional)
• Market B: "Will GDP growth exceed 2% in Q3 2026, given that the Fed cuts rates in June?" (conditional on A being YES)

Market B settles only when Market A resolves YES. Should the Fed refrain from cutting (A resolves NO), Market B is cancelled and all stakes returned in full. This framework enables you to measure the direct impact of rate cuts on GDP expansion — something a standalone GDP market cannot achieve.

Why Conditional Markets Are Valuable

• Policy evaluation: "Should policy X be implemented, what would outcome Y look like?"
• Causal inference: Isolates the true effect of an occurrence from background noise and competing factors
• Strategic planning: Organisations can assess business contingencies through conditional probability pricing
• Election outcomes: "Should Candidate A prevail, how might equity markets respond?"

Active Conditional Markets on PolyGram

Typical conditional market configurations include:

• "Will Bitcoin exceed $100K IF the Fed cuts rates 3+ times in 2026?"
• "Will Trump's approval exceed 45% IF unemployment stays below 4%?"
• "Will the EU pass AI regulation IF the UK does not?"
• Tournament bracket conditionals: "Will [Team A] win the championship IF they beat [Team B] in the semis?"

Trading Conditional Markets

Engaging with conditional markets demands weighing two distinct probabilities:

1. The chance that the underlying condition materialises (Market A)
2. The chance of the target outcome should that condition materialise (Market B)

Your potential profit hinges on both variables. When you anticipate the conditioning event is probable (high P(A)) and the outcome conditional on that event is also probable (high P(B|A)), taking a YES stake in the conditional market becomes compelling.

FAQ

What happens if the conditioning event doesn't occur?

The conditional market is nullified. All participants receive complete reimbursement of their USDC deposit, irrespective of their chosen position.

Are conditional markets more or less liquid than unconditional markets?

Typically less liquid — the additional sophistication discourages broader participation. That said, conditional markets tied to significant events can still generate substantial trading activity.

Can I create a conditional market on PolyGram?

PolyGram's internal team oversees market creation. Submit conditional market proposals via the support portal — topics with strong community interest receive priority consideration.