Swap

You are sending the trade: buy Yes on the ETH market, or sell it back, using the size from quoteTrade. After the result is published, swaps revert. Invalid is not tradable. Display mids live on market.prices().

const pool = client.pool(outcomeToken, { market: marketAddress, outcomeIndex: 0 })
const result = await pool.swap({
  side: 'buy',
  amountIn: quote.amountIn,
  minAmountOut: (quote.amountOut * 99n) / 100n, // your slippage
  user: owner, // token holder = AA smart wallet, not a nested EOA
})

Promise<unknown>

The return value matches whatever your sendCalls or wallet path returns. A buy turns collateral into that answer (OutcomeAmm.buy). A sell is the reverse (OutcomeAmm.sell). A buy of Yes does move No: the market maker splits a complete set, pays you Yes, and keeps the rest. Named prices still sum to 1. After resolve, swaps revert with Resolved.

Keep quoting: Quote a trade
Add liquidity if you are LP
Resolve a market when the question is over

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How it works

Market

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Outcome

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