How to copy trade on Polymarket
Copy trading means automatically replicating the trades of profitable wallets. Instead of researching every market yourself, you follow traders with proven track records and trade alongside them in real time.
Why copy trading works on Polymarket
Prediction markets reward two things: information speed and accuracy. A small number of wallets consistently outperform - they monitor news faster, spot mispriced markets sooner, and execute before everyone else. Copy trading lets you ride that edge without spending hours on research yourself.
Because every Polymarket trade is on-chain, every buy and sell from every wallet is public. Tools like Mirrored watch thousands of wallets and execute the right ones into your account the moment they fire.
Two ways to copy trade with Mirrored
You don't have to pick traders yourself if you don't want to. Mirrored gives you two paths:
Auto Pilot
Five curated lineups we maintain - each 10 hand-picked traders with trade-size and risk settings baked in. Activate one and we handle the rest. Compare lineups →
Manual copy trading
Paste any Polymarket wallet address. Mirrored shows their open positions and recent trades, you nickname them, and it starts mirroring - each trader with their own settings.
The rest of this guide covers the manual path so you understand the underlying mechanics. Auto Pilot uses the same engine - you just skip the "pick a trader" step and you don't have to tune the settings yourself.
Step 1 - Find profitable traders
Not every active wallet is profitable. When evaluating traders, look for:
- High win rate (above ~55%) - consistent accuracy across many trades, not one or two lucky bets.
- Positive cumulative PnL - a wallet can have a 70% win rate and still lose money on bad sizing. Look at total profit, not just hits.
- Consistent activity - traders who fire every week, not one-time winners.
- Reasonable trade sizes - wallets you can realistically match without getting clipped by your per-trade cap.
You don't have to do this hunting yourself. Sharps is our hand-curated roster of Polymarket's most consistent wallets - real on-chain track records, refreshed daily. It's the exact list Auto Pilot copies for you, and you can watch how the whole roster is doing live:
Step 2 - Understand their strategy
Before copying a trader, get a feel for what and how they trade:
- Market focus - politics, crypto, sports, or generalist?
- Trade frequency - five trades a week or fifty? Determines how active your copy will be.
- Average position size - informs your own sizing.
- Hold duration - held to resolution, or actively traded in and out?
Step 3 - Configure your copy rules
Each trader you mirror has its own settings - trade size, slippage, price range, and per-trade caps. The full breakdown is in the copy-trading docs; here's the short version:
Size mode + size value
| Mode | How sizing works | Example |
|---|---|---|
| 💵 Fixed | Every trade is the same dollar amount, regardless of leader size. | Always $25 per trade. |
| 📊 Percentage | A fraction of what the leader traded. | 50% of leader → leader buys $400, you buy $200. |
| ⚖️ Portfolio | Multiplier on the relative position weight, scaled to your portfolio. | 1.0× - match their relative position weight. |
Caps, price band & slippage
Per-trade cap
Clips any single copy at a dollar maximum - useful when a leader occasionally goes huge.
Per-market limit
Caps your total exposure to any one market across every trader, so you can't accidentally over-stack the same outcome.
Price band
A range like 30¢–70¢ skips late entries on near-resolved markets and lottery-ticket longshots. Trades outside it are skipped.
Slippage tolerance
How much price movement between the leader's fill and yours you'll accept. Tighter = more skips when the book moves; looser = more catches at worse prices.
Step 4 - Let it run
Once your rules are set, Mirrored runs automatically:
- Leader buys 200 shares of "BTC > $150k" at
$0.32→ your wallet buys at the same price (within your slippage band). - Leader sells at
$0.58→ your wallet sells too. - Your PnL mirrors theirs, scaled to your size.
Mirrored notifies you on every fill - with the trader, market, side, and price. You can pause one trader, pause everything, or remove a wallet at any time from your copy-trade settings.
Step 5 - Monitor and adjust
Copy trading isn't set-and-forget. Check in regularly on:
- Open positions and where they sit relative to current price.
- Whether each trader you're mirroring is still performing.
- Resolution dates - markets close, and you'll want to think about exits.
- Your overall portfolio exposure across markets.
If a trader's edge fades, drop them and replace with someone fresh from Sharps - or switch to an Auto Pilot lineup so we handle the curation for you.
Pro tips
- Diversify across traders. Even the best wallets have losing streaks. 2–3 traders with different market focuses is a good baseline.
- Use the price band. It's the simplest way to filter out trades where the market has already moved against the original entry.
- Match the trader's style. If they hold to resolution, don't expect quick exits. If they scalp, set a tighter slippage tolerance.
- Start small. Run a small fixed size for a week to see how copy trading actually behaves before scaling up.
What you pay
Manual trades you place yourself pay 1% on each leg - see manual trading fees. No subscription, no signup fee, no per-trade signing fee, no spread markup. Polymarket's relayer covers on-chain gas.