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Set a firm trading budget before you place an order, fund it only with money you can afford to lose, and track the full amount at risk—including fees. Then check each contract’s settlement terms and keep enough of your budget uncommitted to manage open positions. There is no regulator-prescribed personal dollar limit or universally safe number of contracts.
Start with a personal budget, not a universal formula
Event contracts are financial contracts tied to an event’s outcome. Many are yes-or-no contracts with a fixed payout and an expiration; if your position is wrong, you can lose the amount invested. Fees and taxes can also affect returns. The U.S. Commodity Futures Trading Commission (CFTC) advises: “Only trade with risk capital, or money you can afford to risk after living expenses and other savings needs have been met.” Read the CFTC’s consumer guidance on prediction markets.
Choose a maximum amount you are willing to put at risk over a defined period, such as a month. This is a personal budgeting rule—not a CFTC requirement or a guarantee against loss. Do not use money set aside for rent, bills, emergencies, or other savings goals. Avoid choosing a cap based on a percentage of income or a fixed number of contracts: the cited guidance does not establish a universally safe figure.
Keep part of the budget uncommitted
Set a separate ceiling for the total risk in positions that are still open. That way, one early trade cannot consume the entire period’s budget. The size of this open-position ceiling is a budgeting choice, not a regulator-prescribed limit.
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Make the limit hard to move
Record the budget before trading and pause when you reach it. Do not raise the cap to recover losses or because a contract is about to settle. A simple ledger can track deposits, open positions, realized gains and losses, and fees. It is a practical way to keep exposure visible, not an officially endorsed tool.
Calculate the amount actually at risk before each trade
Base your exposure estimate on the order’s cost and applicable fees, not on the payout you hope to receive. A possible payout is conditional on the contract’s outcome; it is not guaranteed profit. Include fees when checking whether an order fits within your cap.
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- Amount at risk: Identify how much you could lose if the position resolves against you, including applicable fees.
- Possible payout: Check what the contract pays if its specified outcome occurs, and distinguish that payout from profit.
- Open exposure: Add the amount at risk on the new order to the amount at risk across your other open positions.
The CFTC’s guidance describes the risk of losing an investment, while a Kalshi member agreement filed with the CFTC sets out contract terms and participant responsibilities. The agreement is a 2024 filing and may not reflect current terms: CFTC-filed Kalshi member agreement.
Read the contract’s settlement terms, not just its headline
A short trading window can leave little time to react, and the event’s everyday meaning may not match the contract’s binding definition. Before entering, read the contract specification and identify:
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- When trading closes and when the contract is expected to settle.
- The resolution source and the method used to determine the outcome.
- The payout for each outcome.
- What the rules say about ambiguity or an unavailable underlying source.
Contract terms can differ. The CFTC-filed Kalshi agreement says event-specific rules address the trading period, settlement, payout, and outcome determination. It also states: “You are responsible for reading, understanding, and accepting the terms of an Event Contract prior to trading.” Check the live terms for the particular contract; the 2024 filing is not evidence that current terms are unchanged.
Manage open positions without assuming you can exit at a set price
The CFTC says customers may trade out before settlement at the current market price and advises them to monitor open positions closely or use stop-loss orders to minimize losses. An early exit depends on market conditions: it does not guarantee that you can sell, or that you will receive a particular price. A stop-loss order, if the venue offers one and it suits the contract, is also not a guarantee against loss.
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Liquidity can vary. The CFTC notes that complex contract structures may attract fewer participants and comparatively lower liquidity, which can make it harder to exit at a desired price. Before trading, consider not just the potential payout but also the amount at risk, fees, settlement timing, clarity of the resolution terms, and practical ability to exit.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Check platform limits and rules directly
Do not assume that a venue provides a particular deposit limit, cooling-off period, or other spending control. A KalshiEX submission hosted by the CFTC described proposed default daily, weekly, and monthly deposit limits, participant-set lower caps, and waiting periods before limits could be raised. That filing describes a proposal; it does not establish that every platform must offer these features or that they are currently available. Check the venue’s current controls and terms.
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Separately, follow the exchange’s rules about who may trade a contract. In a February 25, 2026 advisory, the CFTC Enforcement Division described cases involving a candidate trading on their own candidacy and a trader who likely knew the contents of a YouTube video before public release. Do not trade where you can influence the outcome or on confidential or nonpublic information. Read the CFTC’s February 25, 2026 enforcement advisory.
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