PredMart > Documentation > Overview

PredMart Protocol Overview

PredMart is the margin account for Polymarket. Trade with leverage in one click, or unlock USDC from Polymarket shares you already hold. See Protocol Constants for max LTV/leverage.

Why PredMart exists

Polymarket lets you bet on real-world outcomes — elections, sports, crypto prices — but caps you at 1x exposure and locks your capital until the market resolves. There's no native way to amplify a high-conviction trade, no way to take USDC out of a position you still believe in, and no way to put idle USDC to work against real borrowing demand.

PredMart adds a credit layer on top of Polymarket that fixes all three.

Leverage trading

The primary use case. You don't need to own any Polymarket shares to start.

Pick a market, drag the leverage slider, click open. One transaction. PredMart takes your USDC as equity, advances additional USDC against the position, buys shares on Polymarket at the market price, and books the shares as collateral and the advance as debt — all in a single flow.

The slider tells you the live max for the market you're looking at.

You can close any time. If you're right, you keep the upside on the full leveraged size. If the share price drops far enough to put your position underwater, the protocol auto-closes it to protect the lending pool — same as any margin account. See Leveraged Trading for the full mechanics and Liquidation for how unwinds work.

Borrow USDC against shares you already hold

If you're already holding Polymarket shares and want USDC without selling them, deposit the shares as collateral and borrow up to the LTV limit for that market. Use the USDC however you want: buy more shares, top up another position, or move it off-platform.

PredMart uses a flat LTV at all share prices — see Protocol Constants. Interest accrues while the loan is open; repay any time to free the collateral.

See Borrowing for the full flow.

Lending

If you have idle USDC, you can supply it to the lending pool and earn interest paid by leverage traders and borrowers. You receive pUSDC, a vault token that represents your share of the pool, and that share grows in value as interest accrues. Redeem to USDC any time, subject to available pool liquidity.

Yield comes entirely from real borrowing demand on the protocol — no token emissions, no incentives.

See Lending for the supply/withdraw flow and current rates.

Security and trust

PredMart is non-custodial — funds sit in the smart contract on Polygon, not in any company wallet. Risk-parameter changes sit behind a one-way timelock; prices come from a manipulation-resistant depth-weighted oracle. For the full security architecture, see Security.

Next steps