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Redeeming converts winning outcome tokens into USDC.e after a market resolves. Each winning token is worth exactly 1.00—thelosingtokenisworth1.00 — the losing token is worth 0. 
Market resolves YES:
  100 Yes tokens → $100 USDC.e
  100 No tokens  → $0

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When to Redeem

Redemption is only available after a market resolves. Once the oracle reports the outcome:
  • Winning tokens can be redeemed for $1.00 USDC.e each
  • Losing tokens are worth $0 and produce no payout
You can redeem at any time after resolution — there’s no deadline. Your winning tokens will always be redeemable.

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How Resolution Works

  1. The market’s end condition is met (event occurs, date passes, etc.)
  2. The UMA Adapter oracle reports the outcome via reportPayouts()
  3. The CTF contract records the payout vector
  4. Redemption becomes available for winning tokens

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Prerequisites

Before redeeming:
  1. Market must be resolved — check the market’s resolved status
  2. Hold winning tokens — only the winning outcome can be redeemed
  3. Know the condition ID — required for the redemption call

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Function Parameters

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collateralToken
IERC20
USDC.e (Bridged USDC) contract address: 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174
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parentCollectionId
bytes32
Always 0x0000...0000 (32 zero bytes) for Polymarket markets
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conditionId
bytes32
The market’s condition ID
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indexSets
uint[]
Array of index sets to redeem: [1, 2] redeems both outcomes (only winning pays)
Redemption burns your entire token balance for the condition — there is no amount parameter.

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Payout Mechanics

The CTF uses a payout vector to determine redemption values:
OutcomePayout VectorRedemption
Yes wins[1, 0]Yes = 1,No=1, No = 0
No wins[0, 1]Yes = 0,No=0, No = 1
When you call redeemPositions():
  • Your token balance is multiplied by the payout
  • Winning tokens are burned
  • USDC.e is transferred to your wallet
  • Losing tokens are burned as well, but produce a $0 payout

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Next Steps

CTF Overview

Learn more about the Conditional Token Framework

Resolution Process

Understand how markets are resolved