What Is Polymarket? How Prediction-Market Trading Actually Works

Polymarket is a prediction market where you buy and sell shares tied to real-world outcomes: an election result, an economic release, a sports result. Each share redeems for $1 if its outcome happens and $0 if it does not, so a share's price doubles as the market's estimate of how likely that outcome is. 

Built on crypto rails, Polymarket's original platform runs on the Polygon blockchain and settles in dollar-backed stablecoins, and the company now also operates a separate, U.S.-regulated venue. This guide explains how the odds, order book, liquidity, collateral, resolution rules and UMA disputes actually work, and why a market probability is useful without being the truth.

Key Takeaways

• Polymarket is a prediction market where users trade outcome shares tied to real-world events, with winning shares settling at $1 and losing shares at $0.
• A share’s price can be read as a rough market-implied probability, but it reflects trader activity, liquidity, and market structure rather than objective truth.
• Polymarket operates both a crypto-native global platform and a separate U.S.-regulated venue, with different onboarding, custody, funding, and resolution systems.
• The crypto-native platform uses wallets, stablecoin collateral, Polygon-based settlement, smart contracts, and the UMA optimistic oracle.
• The displayed probability may differ from the price you can actually trade at because bids, asks, spreads, order-book depth, and slippage determine execution.
• Traders can sell before resolution if liquidity exists, but thin markets may make exiting expensive or difficult.
• The written resolution rules, observation period, named source, deadline, and dispute process determine the payout.
• Polymarket is only partly decentralized: trading and settlement may happen on-chain, while the company still designs markets, runs the interface, and controls parts of the user experience.
• Prediction-market prices tend to be most useful in liquid, clearly written markets and less reliable in thin, ambiguous, or highly contested ones.
• The main risks include losing the full position cost, poor liquidity, oracle disputes, stablecoin and smart-contract failures, wallet mistakes, manipulation, regulatory restrictions, and scam sites.

What Is Polymarket?

Polymarket is a crypto-based prediction market where users trade outcome shares on future events. Winning shares redeem for $1, losing shares become worth $0, and prices sit between those two poles as a live, money-weighted read on probability.

One point matters before anything else, because most explanations skip it: Polymarket today comes in two forms. The original crypto-native platform is wallet-based, runs on Polygon, and resolves markets through a decentralised oracle; it is blocked for U.S. users. Separately, Polymarket runs a CFTC-regulated U.S. venue that settles in dollars and requires identity verification. Which version applies to you depends on where you are, and the two carry different risks.

Four ideas frame the rest:

• Polymarket is an exchange that matches you against other traders; the platform itself never takes the opposite side of your position.
• A price is a market-implied probability: a sentiment read shaped by supply, demand and liquidity, only as reliable as the market underneath it.
• Winners are decided by a market's written rules and resolution process.
• The platform can work exactly as designed while a trader still loses the full cost of a position.

The platform's reach has grown alongside all this. Daily active users climbed from almost nothing in 2023 to tens of thousands, as the chart below shows, with sharp peaks around major events.

What Is a Prediction Market?

A prediction market is a venue where participants trade contracts whose payout depends on a future event. Because people commit real money, the price aggregates their collective judgment: if a contract trades at 65¢, the crowd is pricing that outcome at roughly 65%.

As the statistician Nate Silver puts it, talk is cheap, but "trading a contract at 70 cents requires conviction." Money-backed markets strip away idle opinion and leave the crowd's aggregated expectation. A crypto prediction market adds blockchain settlement: trades, collateral and payouts live on-chain, which makes positions transferable and balances publicly auditable, and introduces wallet and smart-contract considerations a traditional market does not have. The category is often called a decentralised or on-chain prediction market for that reason.

Placing the tool among its neighbours clarifies what its output means:

A poll records stated opinion; a prediction market records opinion backed by capital, which is why its prices move fast as information arrives. The price is a strong signal and a poor oracle of truth, a tension that runs through the rest of this guide.

How Does Polymarket Work?

Trading on Polymarket follows a consistent sequence:

1. Choose a market: a question with a defined outcome and end date.
2. Read the resolution rules: the exact conditions that decide the payout, shown with the market.
3. Select an outcome: Yes or No (some markets offer multiple named outcomes).
4. Check the bid, ask and liquidity: what price you can actually get, and for how many shares.
5. Buy outcome shares: you now hold a position priced between $0 and $1.
6. Sell early or hold: close at the current price if a buyer exists, or keep the position.
7. Redeem after resolution: winning shares settle to $1 once the market resolves.

Steps 2 and 4 are the ones beginners skip, and they are where money is lost. The rules tell you what actually settles the market; the order book tells you what price is real and whether you can exit later. On the crypto-native platform you connect a wallet and fund it with stablecoins; on the U.S. venue you fund a verified account. The trading logic is the same across both.

What Do You Actually Buy on Polymarket?

You buy outcome shares, sometimes called Yes shares and No shares. Each is a claim that pays $1 if its outcome is the one that occurs. A market titled "Will the central bank cut rates at the next meeting?" splits into Yes shares and No shares; exactly one side will be worth $1 at resolution, and the other nothing.

This is the same binary structure other platforms call event contracts: one precise question, two complementary outcomes, and settlement at $1 or $0. The word "share" signals a tradable position, you can sell any time before resolution or hold to redemption. What you own is a stake in a specific, written condition, which is why the wording of that condition, covered below, decides your payout as much as the event itself.

What Do Polymarket Odds Mean?

This is the section most competitors get wrong, so it is worth reading slowly. Polymarket displays outcomes as percentages, but those percentages are prices, and prices behave differently from the certainties beginners assume.

Why a 70¢ Share Suggests About a 70% Probability

Because a winning share pays exactly $1, a price of 70¢ implies the market values that outcome at roughly 70%. If traders thought it far more likely, buyers would bid the price toward $1; if far less likely, sellers would push it toward zero. The percentage you see is where buyers and sellers currently agree to trade.

Read it as a market-implied probability: nobody measured the event at 70%, and the figure is a snapshot of crowd money that moves as opinion and capital move.

The Displayed Price Is Not Always Your Execution Price

A market may headline "70%," but that number can be a last trade or a midpoint. The real prices sit on either side of it: the best bid might be 68¢ (what a buyer will pay you) and the best ask 72¢ (what a seller will charge you). That gap is an invisible tax. Buy and immediately sell, and you are down the spread before the event has moved an inch. On a large order in a thin book it gets worse: you climb through progressively higher asks as you exhaust the shares available at each level, the effect known as slippage. The probability on screen and the price your order fills at are two different numbers.

Why Yes and No Prices May Not Add Up to $1

Yes and No are complements: exactly one pays $1, so their true values sum to $1. A beginner expects Yes at 70¢ to mean No costs exactly 30¢. The prices you can trade at need not add up so neatly, because buying each side means crossing its own bid-ask spread. The shares still settle as complements; the quotes on offer to a buyer simply carry the cost of two separate spreads. Recognising this stops you from chasing an arbitrage that the spread has already eaten.

Bid, Ask, Spread and Liquidity

Polymarket runs a central limit order book, so understanding the book is understanding your real cost:

A live order book makes all of this concrete. In the market below, the best ask sits at 27¢ and the best bid one cent lower, with hundreds of thousands of shares stacked at each level; the "Last: 27¢" and "Spread: 1¢" readouts are exactly the numbers this section is about, and the size resting at each price is the depth that decides whether a large order fills near the headline or walks up the book.

Liquidity is the quiet variable behind all of these. A deep, active market lets you enter and exit near the displayed price; a thin one can show an attractive percentage that no one will trade against in size, so your entry costs more than expected and your exit returns less. Before committing, look past the headline number to the spread and the depth on the side you intend to trade. A market maker may be quoting both sides to earn that spread, which is one reason liquidity exists at all.

How You Make or Lose Money on Polymarket

Your result comes from the price you pay and the price you exit at, either by holding to resolution or by selling early.

Holding to resolution

• Buy 100 Yes shares at $0.40 → total cost $40.
• The outcome happens → each share redeems for $1 → you receive $100 → gross profit $60.
• The outcome does not happen → shares settle at $0 → you lose the full $40.

Selling early

• Buy at $0.40, then sell at $0.65 → a gross gain of $0.25 per share before costs.
• Buy at $0.40, sentiment turns, sell at $0.25 → a loss of $0.15 per share, even though the event has not yet resolved.

Two truths follow. Your maximum loss on any position is what you paid; there is no margin call beyond your stake. And you can be right about the event and still lose money by buying at an inflated price, by selling into a temporary dip, or by watching the spread and costs erase a small edge. Being nearly right pays nothing; a share that settles No is worth zero regardless of how close the real world came.

How Do Polymarket Markets Resolve?

Resolution is where a prediction market either earns trust or loses it. The principle to hold onto: the market title attracts the trade, but the written rules decide the payout. Two markets with near-identical titles can settle differently because their rules differ.

The risk has an ancient echo. When King Croesus asked the oracle at Delphi whether to march on Persia, he was told he would destroy a great empire. So, he attacked, and the empire he destroyed was his own. Read every market the same way: the oracle answers the question exactly as written, and misreading the wording is the trader's problem. Every well-formed market specifies:

• an observation period: the exact window in which the outcome is measured;
• a named resolution source: the authority whose data or announcement counts;
• a time zone and cutoff: often decisive in fast-moving events;
• threshold language: whether a value must be strictly above a level or merely reach it;
• edge-case handling: cancellations, postponements, revised data, and contradictory sources.

A resolved market shows all of this in one place. In the example below, the outcome (No) sits beside a rules block that spells out the exact condition, the cutoff time, the three named US-government resolution sources, and the UMA resolver address that settled it. This is the contract you actually traded, not the headline that drew you in.

Traders routinely lose on events they called correctly because a detail in the rules did not match their assumption: a cutoff fell an hour short, a figure was revised after publication, or the contract asked about the announcement of a result rather than the result itself. Read the rules block, shown beneath the market, before you read the odds.

What Is the UMA Oracle?

A blockchain cannot see the outside world, so Polymarket's crypto-native platform outsources "what actually happened" to the UMA optimistic oracle, built by Risk Labs. "Optimistic" means a proposed answer is assumed correct unless someone challenges it.

In practice, after a market closes a proposer submits the outcome and posts a bond in stablecoin; a short challenge window (roughly two hours) opens; if no one disputes, the market resolves and winning shares become redeemable for $1. The screenshot below shows its "Verify" queue: hundreds of proposed outcomes, each posted with a bond and a challenge-period countdown, most of them routine sports results simply waiting out the window before they finalise.

The vast majority of markets clear this way, quickly and uneventfully. Everyday users tend to reach the same verdict: for clean, unambiguous questions, who wins an election, UMA resolves fine, though, as one r/slatestarcodex commenter cautioned, "the resolution system of UMA is pretty weird," and it pays to understand it before the edge cases bite. Since late 2025, the right to propose has been limited to a whitelist of vetted addresses, while the right to dispute remains open to anyone.

When a proposal is challenged, it can be re-proposed or escalated to UMA's token-holder vote, where holders stake and vote over a commit-and-reveal period of about two days. This is the structural weak point, and 2026 tested it in public. A widely reported investigation found that in most disputed markets, more than half the votes came from the ten largest wallets, and roughly one in five disputes involved a voter who held a position in the very market being judged. Two episodes became reference points: a multi-million-dollar market on whether a company would sell Bitcoin within a window resolved "No" despite a regulatory filing showing an in-window sale, and a market on document declassification resolved "Yes" without any documents released.

Legal analysts have flagged the tail risk bluntly: the model works the vast majority of the time, but in the rare, high-stakes case with ambiguous wording, leaning on an anonymous token-holder vote is, in one 2026 assessment, "an untested and highly risky legal experiment." The lesson for a trader is concrete: on large or legally technical markets, judging whether the event happens is only half the work; the other half is judging whether the market could be disputed and how the oracle might read it. The U.S.-regulated venue relies on a different, exchange-based resolution process.

Is Polymarket Decentralised?

Partly, and the honest answer resists a slogan. On the crypto-native platform, the decentralised pieces are real: trades, collateral and payouts settle on-chain in smart contracts you can inspect, funds sit in your own wallet rather than a platform account, and resolution runs through UMA rather than a single in-house referee.

The pieces that are not decentralised matter just as much. A company builds the interface, lists and words the markets, curates who may propose resolutions, and runs the business. Deposits often route through embedded wallets and bridges rather than a fully self-directed setup. And the U.S.-regulated venue is a centralised, licensed exchange by design. Calling Polymarket "decentralised" without these caveats overstates how much of the experience is trustless: you are trusting code and an oracle in some places, and a company and its rule-writers in others.

What Blockchain and Currency Does Polymarket Use?

The crypto-native platform runs on Polygon, an Ethereum scaling network chosen for low fees and fast confirmation, and settles in a dollar-backed stablecoin. Polygon carries far more than Polymarket, of course: its daily active users run into the hundreds of thousands, as the chart below shows, the shared infrastructure Polymarket's trades settle on, not a Polymarket-specific figure.

For years that collateral was bridged USDC (USDC.e); in 2026 Polymarket introduced its own stablecoin, pUSD, backed one-to-one by USDC, as it rebuilt its order-book and contract infrastructure. Your outcome shares and any winnings are denominated in that dollar stablecoin, which is why balances feel like dollars even though they move on-chain.

That dollar collateral is part of a larger stablecoin footprint on Polygon: as the chart below shows, USDC, USDT and DAI together carry a market cap in the low billions on the network, the pool of on-chain dollars that venues like Polymarket draw on.

Practically:

• Network: transactions occur on Polygon; on-chain actions can incur small network (gas) costs.
• Collateral: a dollar stablecoin holds the value on both sides of every market.
• Wallets: you interact through a crypto wallet, an external one you control, or an embedded wallet the app provisions.
• Smart contracts: trades and settlement execute in audited contracts; approvals grant those contracts permission to move your funds.

Each of these adds a risk a traditional account does not carry: a stablecoin can depeg, a wallet or seed phrase can be lost or phished, a token approval can be exploited, and a bridge can fail. Self-custody removes the platform as a single point of failure and hands you the responsibility for security. On the U.S.-regulated venue, funding and settlement happen in U.S. dollars through the regulated exchange, trading those crypto risks for reliance on the platform and its rails.

A separate note, since it draws heavy search interest: Polymarket's leadership has said a POLY governance token and airdrop are planned after a full U.S. relaunch, but as of this writing no such token has launched and no snapshot date is confirmed. Do not confuse POLY (a future governance token) with pUSD (the existing dollar collateral), and treat any site promising a live POLY claim or airdrop as a scam until Polymarket announces one officially.

What Can You Trade on Polymarket?

Polymarket's catalogue reaches well beyond any single category. The durable groupings, rather than today's live markets, are:

The economics bucket leans heavily on macro releases. A Federal Reserve rate decision, the effective rate charted below is the figure those markets track, regularly spawns Yes/No contracts on whether the next move is a cut, a hold or a hike, exactly the kind of scheduled, source-verifiable event a prediction market handles cleanly.

Politics and crypto have historically driven the most volume, but the breadth is the point: any question with a clear, verifiable outcome and a named source can become a market. Availability varies by version and jurisdiction and shifts with regulation, so the exact menu you see depends on where and when you look.

What Does Trading on Polymarket Cost?

Frame cost as the full round trip, not a single line item. Historically, Polymarket's crypto-native platform has not charged an explicit per-trade fee, so the costs that matter are the spread you cross on entry and exit, slippage on larger orders in thin markets, and small network (gas) costs for on-chain actions. The network leg is genuinely cheap: Polygon's median transaction fee, charted below, sits well under a cent, which is why the on-chain cost of a trade is a rounding error next to the spread you cross.

Moving USDC onto Polygon made deposits, in the words of one r/slatestarcodex user, "essentially free" compared with Ethereum mainnet's gas, a real convenience, but not the same as a free trade. Liquidity-incentive programs can rebate active market makers, which does nothing for a taker crossing a wide spread. The U.S.-regulated venue may apply its own fee structure, and terms on either version can change, so confirm the current schedule before assuming zero cost.

The practical takeaway mirrors any market: your true break-even sits a little worse than the sticker price. A share bought at 60¢ needs the outcome to occur more than 60% of the time, plus enough margin to cover the spread and any costs, to be profitable over many trades.

Is Polymarket Legal?

This section changes fastest, so treat it as a starting point and verify current rules before acting. Availability and regulatory treatment vary by jurisdiction and evolve over time. The crypto-native global platform has been blocked for U.S. users since a 2022 settlement with the Commodity Futures Trading Commission (CFTC). Outside the U.S. it operates in many countries and is restricted in others. Using a VPN to bypass a geo-block breaches the platform's terms and can cost you account access and recourse; this guide does not cover circumvention.

For the United States, the relevant product is Polymarket's CFTC-regulated venue, built on a registered exchange the company acquired, which settles in dollars and requires full identity verification (KYC). At the federal level, event contracts on a CFTC-registered exchange are treated as regulated financial instruments. At the state level the picture is contested: the same federal-versus-state fight that surrounds sports prediction contracts applies, with some states challenging or restricting sports markets and federal courts split on whether commodities law preempts state gambling law. Your access can depend on your state and the market category, and it can change with a court ruling.

Two cautions on wording. "Regulated" is a statement about legal framework and nothing more. It carries no promise of endorsement, safety or profit. And "legal everywhere" is a claim with an expiry date; check availability for your jurisdiction and the specific market before trading.

Is Polymarket Betting or Gambling?

A flat yes or no would mislead, because the answer depends on the lens:

Polymarket uses exchange-style mechanics (you trade against other participants, prices form in an order book, and you can exit before resolution) and it serves an informational function a sportsbook does not, letting anyone read and price the odds of real-world events. Founder Shayne Coplan pitches that role hard, calling the platform "an informational public good" and arguing that when big news breaks, the world increasingly checks the odds rather than the headlines. Hold that framing at arm's length: it is a founder describing his own product, and the accuracy and manipulation sections below complicate it. At the same time, users still commit money to uncertain outcomes, and some fast, sports-driven markets feel much like betting in practice. Holding both facts together is more accurate than adopting either the platform's or a regulator's preferred framing.

Polymarket vs Kalshi

Polymarket and Kalshi are the two most prominent prediction markets, and they solve the same problem with different architecture. Kalshi launched as a U.S., dollar-based, CFTC-regulated exchange with a centralised account model. Polymarket grew up crypto-native (wallet-based, on-chain, and oracle-resolved) and has since added a regulated U.S. venue that structurally resembles Kalshi. The clearest contrast is between Kalshi and Polymarket's crypto-native model:

On the point newcomers care about most, is there enough depth to trade, Polymarket's scale is no longer in doubt. Its cumulative trading volume, charted below, runs into the tens of billions, with daily peaks well above $150 million around headline events.

The honest summary: neither removes risk, each relocates it. Kalshi asks you to trust a company and its regulator; the crypto-native Polymarket asks you to trust code, an oracle and your own key management. On the point that matters most to newcomers, how a disputed outcome gets decided, Kalshi routes it through an exchange process, while Polymarket routes it through a token vote whose concentration has drawn scrutiny. Which trade-off suits you depends on the risks you understand and can manage, not on a preference for "regulated" or "decentralised" as words.

Are Polymarket Predictions Accurate?

Prediction markets are often accurate, and the reasons they can be wrong are as important as the reasons they work. Accuracy is best judged by calibration: across many markets priced at 70%, do the outcomes happen close to 70% of the time? On that measure, deep, high-attention markets tend to be well calibrated, because liquidity and many participants pull the price toward a fair estimate.

Accuracy degrades predictably where those conditions fail. Thin liquidity lets a small amount of money move the price. Long time horizons leave prices noisy until close to resolution. Niche or ambiguous markets attract fewer informed traders and more interpretation risk. And selection bias flatters the record. A few famous correct calls get remembered while quiet misses do not. A century and a half before Polymarket, Charles Mackay catalogued the "madness of crowds," the manias that seize collective judgment; crowds can be wise and mad in turn, which is why calibration, not a highlight reel, is the honest test.

There is also a pointed question of who profits. One redditor, citing a 10x Research report, noted that "83% of Polymarket wallets are negative." The winners aren't riding the wisdom of the crowd so much as trading on information the crowd hasn't priced yet, from obscure data feeds to real-time search trends, with one account reportedly making seven figures in a day off a shift in Google searches. That dynamic is visible on Polymarket's own leaderboard. The screenshot below ranks the biggest all-time winners, several up eight figures on single election markets, the thin top layer that a mostly-losing field pays into.

It is less oracle than Biff Tannen's almanac: the edge tends to belong to whoever knows the result first. Judge a track record with proper scoring across a comparable sample, not one celebrated election night. And even a well-calibrated market only states a probability, so a 90% market that resolves the other way is not necessarily "wrong," one in ten of them should.

Can Polymarket Prices Be Manipulated?

Yes, and knowing the vectors is part of reading the price honestly. The standard economic critique of prediction markets grants that they aggregate dispersed knowledge well, while warning they are "not infallible oracles": a sudden liquidity crunch or a single motivated whale can distort the implied probability of a thin market. On-chain transparency lets anyone audit trades; it does not prevent that distortion. The main channels:

• Whales in thin markets: A large trader can drag a lightly traded price far from a fair estimate, especially near resolution. The clearest illustration came during the 2024 U.S. election, when a single French trader built a position reported in the tens of millions across several wallets. That was enough to move the headline odds and spark manipulation accusations, though Polymarket said it found no evidence of manipulation. Retail traders noticed; as one put it on r/CryptoCurrency, the market can feel "controlled by rich people."
• Wash trading and bots: Self-trading or automated activity can inflate volume and manufacture the appearance of conviction.
• Non-public information: Someone closer to an event can trade ahead of the crowd, which looks like sharp forecasting and behaves like insider trading, and because being early pays, holders of private information even have an incentive to seed misinformation, which is why fake news tends to circulate under contentious markets.
• Resolution and governance pressure: Because challenged markets settle by a token vote, concentrated holdings and voters with positions in the market they judge create a channel to influence the outcome, not only the price. The documented 2026 disputes are the clearest open examples.

None of this makes every price suspect. It means a price is most trustworthy in liquid, well-defined markets and least trustworthy in thin, ambiguous or contentious ones; exactly where a confident-looking percentage is most tempting to believe.

Is Polymarket Safe and Legit?

Polymarket is a real, widely used platform backed by significant investors, so "is it a scam?" and "is my next trade safe?" are different questions. Separate three layers:

• Is the platform legitimate? The company and its markets are real and heavily trafficked. That settles legitimacy; safety is a separate question.
• Is the infrastructure secure? Smart contracts, an oracle, a stablecoin and wallets each carry their own failure modes that operate independently of whether the company is honest. Funding rails belong here too: users occasionally report money that leaves a bank account or card but never lands in the app, followed by slow support, one r/slatestarcodex commenter described exactly that and called it a scam.
• Is a given trade safe? A share can lose its entire value. Illiquid markets punish entries and exits, and ambiguous rules can settle against you.

Concrete precautions help more than reassurance: verify you are on the official domain, since fake Polymarket sites and airdrop scams are common; guard your wallet and never share a seed phrase; size positions by the maximum you can lose; and read the resolution rules before the odds. The summary to carry: Polymarket can function exactly as designed while you still lose the full cost of a position. Legitimate and safe are not the same claim.

What to Check Before Trading a Polymarket Market

Prediction markets are unforgiving about technicalities, so a short pre-trade routine prevents most avoidable losses. Four habits matter most:

• Read the Rules tab, not the title: The title is the hook; the rules are the contract. A market asking "Will the US enter a recession?" might settle on the NBER's official declaration or on two straight quarters of negative GDP, outcomes that can land months apart.
• Audit the resolution source: If a market keys off a single API or website and that source goes down or changes format, the market can tip into a messy UMA dispute.
• Check the order-book depth: A $5,000 market order into a book with $500 at the best ask chews through every worse level behind it, wrecking your average price. Depth, not the headline percentage, decides what you actually pay.
• Count the opportunity cost of time: Capital locked in an election market that resolves in 14 months earns nothing while it sits. A 5% expected edge over a year can quietly lose to simply holding a yield-bearing stablecoin.

Then run the quick diagnostic before committing: What exact condition resolves the market Yes, and what resolves it No? What source and time zone control settlement, and how are delays and revisions handled? Am I looking at a bid, ask, midpoint or last trade, and how wide is the spread? Is there depth for my size, and can I exit before resolution? What is my true maximum loss, what wallet and stablecoin risks am I taking, and is the platform available where I am? And finally, am I trading this as information, as a hedge, or as entertainment, and what evidence would change my mind? If you cannot answer the first two, you do not yet understand what you are trading.

Closing Thoughts

Polymarket turns opinions about future events into tradable prices, but those prices are not truth. They reflect what traders are willing to risk at a given moment, shaped by liquidity, information, spreads, market depth, and sometimes the influence of a few large participants.

The most important thing to understand is that traders buy a precisely written outcome, not the general idea suggested by the headline. Resolution rules, sources, deadlines, oracle disputes, and edge cases can decide the payout even when the real-world event appears obvious.

Polymarket can be useful for reading crowd expectations, particularly in liquid and clearly defined markets. It should still be treated as one signal rather than a forecast to follow blindly. Before trading, inspect the order book, read every resolution rule, understand the wallet and oracle risks, and limit the position to an amount you can lose entirely.