A unit is the standard quantity in which a contract or a stake is measured.
Last reviewed 15 September 2025 · Educational, not advice
A unit has two common meanings around event contracts. The first is the contract itself. On a regulated exchange each contract is one unit and settles at a fixed cash value, commonly one dollar, if its outcome resolves yes, and at zero if it resolves no. Buying ten contracts means buying ten units of the same outcome. The price you pay per unit, somewhere between one cent and ninety nine cents, reflects the implied probability the market puts on that outcome.
The second meaning comes from bankroll discipline. Here a unit is a fixed amount you decide to risk on a single position, often set as a small share of the total money you have set aside. Sizing every position in units rather than raw dollars keeps your risk consistent and stops a single market from dominating your account.
Knowing how many units you hold tells you your exposure. Each unit you own is the most you can lose on that contract, since a contract that resolves no settles at zero. Ten units bought at forty cents put four dollars at risk to win ten, before fees. Thinking in units also makes fees and returns easier to compare across markets priced differently.
Treating a unit as a planning tool rather than a target keeps risk steady. A unit is a measure, never a promise of profit, and the size of your position does not change the odds of the outcome.
You decide one unit is twenty dollars, two percent of the money you have set aside. A contract trades at fifty cents, so twenty dollars buys forty contracts.
If it resolves yes each settles at one dollar and you receive forty, before fees. If it resolves no you receive nothing and lose the twenty. By keeping every position to one unit, you never risk more than that fixed amount on a single market.
Understanding how these markets work does not make trading safe. Prediction markets can lose you money, and a confident price can still be wrong. Stake only what you can afford to lose, never to chase a loss, and never on borrowed money. If it stops feeling like a free choice, step back. In the United States you can call or text the helpline on 1-800-GAMBLER or visit ncpgambling.org.
No. The size of your stake changes how much you can win or lose, never the probability of the outcome. A contract priced at sixty cents implies the same chance whether you buy one unit or ten.
It can be. On an exchange each contract is one unit that settles at a fixed value. In bankroll terms a unit is a fixed amount of money you choose to risk per position, which may equal many contracts.
Using a consistent unit keeps your risk even across markets and stops one position from taking over your account. It is a discipline tool, not a way to increase returns.
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