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Economics

FeeRateRecipientWhen
Treasury fee2%ProtocolAt resolution
Creator fee1%Market creatorAt resolution
Total3%

Key points:

  • Fees come from the losing pool only — winners never pay fees
  • No fees on entry — 100% of your bet enters the pool
  • The market creator earns 1% regardless of which side wins

After resolution:

losingPoolAfterFees = losingPool × 0.97
yourPayout = yourBet + (yourBet / winningPool) × losingPoolAfterFees

A BTC market has 200 QUAI in the Yes Pool and 100 QUAI in the No Pool. Yes wins.

StepCalculationResult
Losing poolNo Pool100 QUAI
Fees (3%)100 × 0.033 QUAI (2 treasury, 1 creator)
Losers’ pool after fees100 - 397 QUAI
Total to winners200 + 97297 QUAI

Your payout if you bet 20 QUAI on Yes (10% of Yes Pool):

  • 20 + (20/200) × 97 = 29.70 QUAI
  • Profit: 9.70 QUAI (48.5% return)

Your payout if you bet 20 QUAI on No:

  • You lose everything. 0 QUAI back.

Before betting, you can estimate your payout multiplier:

multiplier = 1 + (losingPool × 0.97) / (winningPool + yourBet)

The contract exposes estimatePayout(isYes, amount) to simulate this on-chain.

On parimutuel markets, your bet changes the odds. This matters most on thin pools:

Your betPool sizeOdds shift
10 QUAI1,000 QUAI~1% — negligible
50 QUAI200 QUAI~15% — significant
100 QUAI100 QUAI~33% — you’re now half the pool

Rule of thumb: if your bet is more than 10% of the pool you’re entering, you’re meaningfully moving the odds against yourself.

Market creators earn 1% of the losing pool. This is pure income — you get it regardless of whether your seed bet wins or loses.

ScenarioLosing poolCreator fee
Quiet market200 QUAI2 QUAI
Active market5,000 QUAI50 QUAI
High volume50,000 QUAI500 QUAI

The creator fee incentivizes creating markets that attract volume. Strategies: pick popular assets, use round strike prices, target 50/50 implied odds, and time markets around catalysts (earnings, Fed meetings, etc.).

ParameterVariableDefaultUnit
Treasury feetreasuryFeeBps200basis points
Creator feecreatorFeeBps100basis points
Min seed betminSeedBet~100 QUAIwei
Min duration15 minutes
Min close buffer5 minutes before resolution