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:
- AutoPilot — a curated lineup of profitable traders we maintain. Pick a lineup, set your sizing rules, and the bot mirrors every entry from every trader in the lineup. No need to know who to copy.
- Manual copy trading — paste any Polymarket wallet address. The bot validates it, shows you the trader's open positions and recent trades, and starts mirroring as soon as you set your rules.
The rest of this guide covers the manual path so you understand the underlying mechanics. AutoPilot uses the same engine — you just skip the "pick a trader" step.
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.
Mirrored's leaderboard ranks Polymarket wallets by 30-day realized PnL, win rate, and risk-adjusted consistency — no black box. Or skip the research and use AutoPilot.
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
Mirrored's 6-step settings wizard gives you tight control over how each copied trade is sized and filtered. 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. |
Per-trade and per-market caps
A per-trade cap clips any individual copy at a dollar maximum — useful when leaders occasionally go huge. A per-market limit caps your total exposure to any single market across every trader, so you can't accidentally over-stack the same outcome.
Price band
A range like 30¢–70¢ filters out late entries on markets that have already mostly resolved as well as lottery-ticket entries on long shots. Trades outside the band are skipped.
Slippage tolerance
How much price movement between the leader's fill and yours you'll accept, expressed in percent. Tighter slippage means more skipped trades when the book moves; looser slippage means more catches at potentially worse prices.
Step 4 — Let it run
Once your rules are set, the bot 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 runs in Telegram, so every fill pings you in chat with the trader, market, side, and price. You can pause one trader, pause everything, or remove a wallet at any time from 🪞 Copy Trade → 👥 Manage.
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 the leaderboard — or switch to an AutoPilot 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
Mirrored takes 1% only on winning trades — nothing on losing ones. Each trade also incurs a flat $0.05 Turnkey transaction fee for the on-chain signature. No subscription, no signup fee, no spread markup.