How to Make Money on Polymarket

Start with the payoff structure

A Polymarket share pays $1 if the event resolves YES and $0 if it resolves NO. The price sits between those values and reflects the market's implied probability. If YES trades at $0.40, the market is pricing a 40% chance.

Buy YES at $0.40 and you pay $0.40 for a possible $1. If you are right, you make $0.60 per share before fees. If you are wrong, you lose $0.40. Buy NO at $0.60 and the payoff flips. There is no yield and no coupon. The return comes from the price moving toward your view or the event resolving in your favor.

The market is zero-sum before fees. The person on the other side of your trade is taking the opposite view. To make money consistently, you need an edge over that person: better information, a faster read, a liquidity service, or a process that removes emotion.

The price already reflects the probability. A 90% favorite at $0.90 returns 11% if it wins and loses 100% if it loses. The risk is small in probability and large in severity.

Five ways people make money

Directional trading

You buy YES or NO when your estimate of the true probability is higher than the price. If you think an event has a 55% chance and YES trades at $0.40, the gap is the edge. The work is in the estimate: reading the rules, the underlying data, and the market's blind spots. Specializing in one category beats scanning every market.

Event and news trading

News moves prices, and the first traders to interpret it capture the move. This path rewards speed and a clear view of what the news means for the resolution criteria. Most of the easy move is gone within minutes. It is not a casual strategy.

Arbitrage

The simplest version is the sum-to-one rule. If YES and NO together cost less than $1, buying both locks in the difference at resolution. Cross-venue arbitrage works the same way between Polymarket and another prediction market. The risk is execution: one leg can fill while the other moves, and fees can erase a thin spread.

Market making

Market makers post bids and offers and earn the spread. On Polymarket, they can also earn maker rebates. The work is inventory management and adverse selection: the traders who fill your quote may know more than you do. Our leaderboard study found that 26 of the top 100 monthly wallets earned more from rebates and refunds than from trading. Those are market makers, not directional traders, and copying them is a different bet.

Copy trading

A copy bot watches a leader's wallet and mirrors the trades in your account. You still have to choose the leader, and the leaderboard PnL is not a clean skill score. We cover the evaluation process below.

The math of a single trade

Suppose YES trades at $0.40 and you believe the true probability is 50%. Your edge is 10 cents per share. If you buy 2,500 shares for $1,000, a win pays $2,500 and a loss takes the $1,000. The expected value before fees is:

That $250 is the edge, not the payout. It assumes your probability estimate is right. If the true probability is 42%, the edge shrinks to 2 cents per share, or $50. Fees, spread, and slippage can erase it. If the true probability is 38%, the trade is negative even though the market can still resolve YES.

Small edges are fragile. Position sizing matters because a single loss can take out many small wins. One approach is to risk a small fraction of your bankroll per trade, not the whole thing.

What separates profitable traders from lucky ones

A profitable month is not a track record. The difference shows up in the accounting:

• Realized PnL, not just open positions.
• At least 100 trades over three months, not one event.
• A maximum drawdown you can survive.
• Performance in more than one category or market regime.
• Income from trading, not only from rebates and refunds.
• No single position carrying the result.

The leaderboard makes this harder. We collected the top 100 wallets on the monthly PnL leaderboard and compared each monthly figure with the same wallet's all-time realized PnL. Fifty of the 100 reported a monthly figure larger in magnitude than their own all-time realized PnL. Twenty-two exceeded it by more than 2x. The headline number is not the thing you are trying to copy. The full study explains the accounting boundary and the perps caveat.

Copy trading: the shortcut and its costs

Copy trading moves the work from execution to leader selection. A bot monitors the leader's wallet, detects a trade, and places a matching order in your account. You need a leader with a repeatable process, a tool that executes reliably, and a fee structure that leaves room for a return.

Check the leader the same way you would check your own strategy: realized PnL, sample size, drawdown, category consistency, and fee dependence. Then check the tool: the builder fee, the subscription, the latency, and who holds the keys. A 0.5% fee on entry and exit is about 1% round trip before spread and slippage. On a strategy with a 3% edge, that is a third of the return.

The comparison of Polymarket bots lists the fees, custody models, and latency claims for the main tools. BlockRotate is our product, and it is one of the options; the comparison says where it is weaker.

Common ways people lose

• Copying the top leaderboard wallet without checking whether the PnL is realized, open, or rebate-driven.
• Ignoring the spread, the builder fee, and the slippage on a copied trade.
• Putting most of the bankroll into one event.
• Trading illiquid markets with a size the book cannot absorb.
• Chasing a new market with no history because the odds look mispriced.
• Copying a market maker and expecting directional returns.
• Holding a position after the thesis changes because the position is already open.
• Treating one winning week as proof that the process works.

A 30-day starter plan

The first month is for building a track record. Payouts come later.

1. Pick one category you understand. Read the resolution rules before you trade. Paper trade 20 to 30 positions and record the price, the thesis, and the outcome.
2. Review the paper record. Calculate realized PnL, win rate, average win and loss, and the maximum drawdown. Cut the setups that do not work.
3. Test a copy candidate in paper mode, or trade a small live size. Set a daily loss limit and a maximum position size before you start.
4. Review the month. If the process has a positive expectancy after fees, scale slowly. If it does not, change one variable and test again.

A paper-trading mode is useful because it lets you test the mechanics without risking capital. BlockRotate's copy-trading platform includes one. You can also track the same numbers in a spreadsheet if you trade manually.

FAQ

Further reading: how to read the Polymarket leaderboard, Polymarket legal status, and how Polymarket works.

Related

• Polymarket leaderboard guide
• Best Polymarket bots compared
• Polymarket copy trading with BlockRotate
• What the Polymarket leaderboard actually measures