
Polymarket odds are always a popular topic of conversation. But there’s one important fact people forget: since Polymarket is a prediction markets site, odds don’t technically exist here, at least not in the traditional sense.
Don’t worry, in this guide, I’ll separate fact from fiction and break down everything you need to know about pricing in the prediction markets world. By the end, you’ll have the knowledge and confidence to start buying and selling shares across a wide range of markets like a pro.
If you caught our recent Polymarkets review, you’ll know that this is a prediction market site, so it doesn’t offer odds like a traditional sportsbook. Instead, you will have the opportunity to buy and sell event contracts tied to the outcome of real-world events. Here are a few examples:
As you can see, each event is framed as a simple yes-or-no question, allowing you to purchase “Yes” or “No” shares based on how you think the outcome will unfold. In our Underdog Predict review we found that it uses that same binary contracts, as do most prediction markets.
These contracts are priced between $0.01 and $0.99, with the price reflecting the market’s implied probability of the event occurring, making it similar in concept to traditional betting odds. If your prediction is correct once the market settles, each winning share pays out $1.
Here is a quick summary of the pros and cons of Polymarket prediction markets:
Event contract prices at Polymarket are determined by supply and demand, as traders buy and sell shares based on their beliefs about the likelihood of an outcome. Whether you choose Polymarket sports events trading, crypto, entertainment, or any other prediction market, you can expect the same rules to apply. If more traders believe an event is likely to happen, the “Yes” price rises closer to $1, while the “No” price falls towards $0.
This unique dynamic creates an implied probability percentage, similar to traditional betting odds. For example, a $0.65 price suggests a 65% implied probability that the event will occur.
For the vast majority of prediction markets, there are no Polymarket fees to consider when making trades. This is one less factor to worry about when buying and selling event shares at this site. Here are a few examples of real-world traders with different prices and implied probabilities:
| Example Prediction Market | Cost per share | Implied probability |
|---|---|---|
| Will the Los Angeles Lakers make the playoffs in the 2025–26 NBA season? | Yes – $0.70 No – $0.30 | Yes – 70% No – 30% |
| Will Avatar: The Way of Water win the Best Visual Effects Oscar in 2026? | Yes –$0.78 No – $0.22 | Yes –78% No – 22% |
| Will X reach 500 million active users by the end of 2026? | Yes – $0.54 No – $0.46 | Yes – 54% No – 46% |
Since there is no Polymarket sign-up bonus, one of the best ways to get more value from your deposits is to know which pressures could flip the markets on their head. Here’s what you should be looking out for on some of the biggest markets:
If you’re looking at sports-focused prediction markets in any of the Polymarket legal states, a sudden injury to a star player can drastically shift prices. Traders immediately reassess the viability of certain teams, as key players often have a huge impact on outcomes. For the team with the injured player, this could lead to a sell-off, reducing the cost of each share. Similarly, any competing teams with no key player injuries may see a price increase.
If a reputable poll shows a significant change in candidate support, prediction markets can move quickly. For instance, a sudden surge for a presidential candidate in key swing states can shift market prices. That said, timing plays an important role, as late-stage polling closer to election day usually triggers the biggest price swings.
Events such as pandemics, financial crises, or geopolitical shocks can cause huge shifts in economic prediction markets. For instance, when COVID-19 first spread globally, traders rapidly reassessed unemployment, GDP growth, and policy outcomes, causing large price swings. These swings can be short or long, depending on how long the uncertainty remains.
In short, Polymarket doesn’t offer traditional odds like a sportsbook. Instead, you buy and sell yes/no shares on real-world events. Each share is priced between $0.01 and $0.99, reflecting the market’s collective estimate of the event’s likelihood. It’s actually super simple to understand, especially when you’re browsing the platform first-hand. Just keep in mind that every prediction market has its own nuances and external factors that can cause a shift in the perceived probability of an event occurring, leading to potential price swings.
If you want to purchase your first event contract at Polymarket, you can join today using any of the links on this page.
Winning shares pay $1 per share, while losing shares pay $0 at Polymarket. This means that your profit is the difference between the purchase price and $1. For example, buying a share at $0.65 that wins nets $0.35 profit per share.
Since Polymarket is a prediction market site, it does not set odds as a traditional sportsbook does. Instead, traders can buy and sell event shares, which are priced based on the implied probability that an event will occur.
When traders refer to Polymarket odds, they are usually referring to the market’s collective estimate of an event occurring. For example, an event contract priced at $0.70 implies a 70% chance the event will occur.
21+ and present in VA. Gambling Problem? Call 1-800-GAMBLER.