One of the biggest differences between Polymarket and a sportsbook: you can sell any position at any time while the market is open. You’re never locked in until the event happens — you can take profits early, cut losses, or trim a position that’s grown too large.
How to Sell: Step by Step
Step 1. Open your Portfolio page and click the position you want to sell (or go straight to the market page).
Step 2. On the market page, switch the trade panel from Buy to Sell and select the outcome you hold.
Step 3. Enter the number of shares to sell, or click Max for the whole position. Any fraction works — you don’t have to exit all at once.
Step 4. Choose your order type:
- Market sell — fills instantly at the best bid. You pay the category’s taker fee.
- Limit sell — you set the price and the order rests on the book. If it fills as a maker, you pay zero fees and even earn maker rebates.
Step 5. Review the estimated proceeds and confirm. The PUSD lands in your balance immediately — ready to trade or withdraw.
Market Sell vs. Limit Sell
| Market sell | Limit sell | |
|---|---|---|
| Speed | Instant | Fills when someone takes your price |
| Price | Best available bid | The price you set |
| Fees | Taker fee (varies by category) | Zero if filled as maker, plus rebates |
| Best for | Urgent exits, deep books | Almost everything else |
On a liquid market with a tight spread, the difference is small. On a thin market, it’s everything — a market sell into a sparse book can fill several cents below fair value, an instant loss no fee schedule will ever match.
How I Actually Sell (After 3 Years)
I trade a lot of obscure, low-attention markets, so most of my exits happen in thin order books. My rules of thumb:
- Maker orders, almost always. I post a limit sell at or near my target and wait. Paying the taker fee and crossing a wide spread is a double cost, and on most markets there’s no rush that justifies it.
- A taker sell is for emergencies. I’ll cross the spread only when something has dramatically changed and I’m desperate to get out fast. That’s rare.
- Partial exits do most of the work. If I have a few thousand dollars in an obscure market and the position starts feeling too big, I don’t need to exit — I sell half. The remaining size is something I’m comfortable holding to resolution, and I didn’t dump my whole stake into a thin book.
- Sometimes the best exit is no exit. If a book is so thin that selling means accepting clearly negative expected value, I just hold to resolution. An illiquid position you’re right about is better than a guaranteed haircut. The real lesson sits one step earlier: before entering, I check there’s enough liquidity to at least size down later.
Selling Winners vs. Waiting for Resolution
Once an outcome is effectively known, winning shares trade at about $0.999. You have two options:
- Sell now at ~$0.999 — PUSD instantly, no waiting
- Wait and redeem at $1.00 — formal resolution takes roughly 2 hours after the market ends (outcome proposed, then a dispute window), and your balance shows “Available soon” until it completes
The trade-off is about 0.1% versus a couple of hours. If you want to redeploy the capital into another market, selling is usually worth it. The full timeline is in How Polymarket Markets Resolve.
When You Can’t Sell
- Market closed, awaiting resolution — trading is over. If you hold the winning side, you redeem instead (or enable auto-redeem in Settings → Trading).
- No bids on a thin book — the market is open but nobody’s bidding near fair value. Post a limit sell and wait, or hold to resolution. Don’t reward an empty book by hitting a lowball bid.
Fees When Selling
Sell-order fees follow the same category-based structure as buys — taker fees from $0.75 to $1.80 max per 100 shares (geopolitics free), makers pay nothing. On sells, fees are collected in PUSD from your proceeds. Use the fee calculator to see the exact cost before you trade.
Related Guides
- All Polymarket Guides — Browse every tutorial
- How to Trade on Polymarket — Order types, the order book, and placing your first trade
- How to Withdraw from Polymarket — Cash out after selling
- Polymarket Fees Explained — The full taker/maker fee structure
- How Polymarket Markets Resolve — Redemption, the 2-hour rule, and disputes
- Market Making on Polymarket — Turn maker orders into a strategy