28¢ Polymarket Price Explained
- Decimal
- 3.57
- American
- +257
- Fractional
- 18/7
- Implied probability
- 28.00%
- Polymarket
- 28¢
- $100 wins
- 257.14
- American
- +257
- Fractional
- 18/7
- Implied probability
- 28.00%
- Polymarket
- 28¢
- Profit
- 257.14
- Total return
- 357.14
3.571 decimal, +257 American, 28.00% implied probability
28¢ is what a YES (or NO) share costs when the market thinks the outcome is 28.00% likely. Because a winning share pays a dollar, dividing one by the price gives the decimal odds, 3.57, and from there the American price of +257.
What a 28¢ share pays
Each share pays $1.00 on a win, so the profit per share is a dollar minus the price. On 100 dollars' worth of shares the return is 357.14, a profit of 257.14.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 25.71 | 35.71 |
| 25 | 64.29 | 89.29 |
| 50 | 128.57 | 178.57 |
| 100 | 257.14 | 357.14 |
| 500 | 1,285.71 | 1,785.71 |
| 1,000 | 2,571.43 | 3,571.43 |
Break-even and long-run results
Because the price is a probability, the break-even rate is the price itself: 28.00%. If your own estimate of the outcome is higher than 28.00%, the share is value; if it is lower, it is not.
| Win rate | Return on stake |
|---|---|
| 28% | 0.0% |
| 50% | 78.6% |
| 55% | 96.4% |
| 60% | 114.3% |
| 65% | 132.1% |
28¢ is an underdog share with an implied chance of 28.00% and a payout of 257.14 per 100 dollars staked. Prediction markets often price underdogs closer to fair than sportsbooks do, so this is a good range for cross-market comparison.
Converting 28¢ by hand
Treat the price as a probability: 28¢ is 28.00%. Decimal odds are one divided by that, 3.571, which bookmakers would display as 3.57. American odds follow from the decimal price: an underdog, so (3.571 − 1) × 100 gives +257. In fractional terms the closest traditional price is 18/7.
YES, NO and the spread
On a liquid market the YES and NO prices add up to about $1.00; at 28¢ the NO side should be near 72.00%. Anything above $1.00 in total is the spread, the prediction-market equivalent of a bookmaker's vig. Enter both sides in the Polymarket converter to measure it.
Fees and comparison with sportsbooks
Fees, where a market charges them, come off profit and work exactly like exchange commission. At 2% the share is worth 3.520 decimal, at 5% 3.443. A sportsbook offering better than the effective price beats the market.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 3.520 | +252 | 28.41% |
| 5% | 3.443 | +244 | 29.05% |
Same price in other formats
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does a 28¢ price mean on Polymarket?
A share costs 28¢ and pays $1.00 if the market resolves in its favour, so the price is the market's probability: 28.00%. In sportsbook terms it is 3.57 decimal or +257 American odds.
How do I convert 28¢ to decimal odds?
Divide 1 by the price in dollars: 1 / 28¢ gives 3.571, shown as 3.57.
What is the NO price when YES is 28¢?
On a liquid market the NO side is about $1.00 minus the YES price, so roughly 72.00% in cents. The difference from exactly $1.00 in total is the spread.
Is 28¢ better than the sportsbook price?
Compare after fees. At 28¢ the share is worth 3.57 decimal before fees and 3.520 at a 2% fee. If a sportsbook offers more than that on the same outcome, the sportsbook is the better price.
What do I win per 100 dollars at 28¢?
100 dollars buys 100 / 28¢ shares, which pay 357.14 in total on a win: a profit of 257.14.