> For the complete documentation index, see [llms.txt](https://size.club/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://size.club/docs/how-size-works/what-you-risk-and-what-you-can-win.md). # What you risk and what you can win You are never trading your own bank account on Size. Read this once and you will know exactly what is at stake on every screen. ## The money map | Where you are | Whose money | The most you can lose | | --------------------- | ----------------- | --------------------------------------------------------- | | Practice Trial | Nobody's | Nothing. Practice is free and unlimited | | Key Trial | Simulated balance | The Key you spent to enter | | Life (funded account) | House capital | Nothing of yours. A breach ends the Life, you owe nothing | | Your wallet | Yours | Only what you choose to spend in the Store | ## Trials: live prices, capped downside A Trial runs on live markets and your positions fill against real prices, but you are not trading your own money. The Trial gives you a simulated balance to trade with. Lose every position and the run still only cost you the Key. That is the whole bet: one Key to find out if you can finish first. ## Lives: house capital, real Payouts Win a Trial and the Life you earn is funded with Size's capital, not yours. You trade it under [drawdown rules](/docs/after-you-win/drawdown-and-risk-rules.md). If it breaches, the Life ends and you owe nothing. Profits you earn on a Life are real: your share becomes a [Payout](/docs/after-you-win/profit-split-and-payouts.md) in USDC. ## Your wallet stays yours Wallet USDC is only ever spent when you buy something in the Store. Unspent balance can be [withdrawn](/docs/wallet-and-store/withdrawals.md) at any time. ## Related * [What is a Key?](/docs/how-size-works/what-is-a-key.md) * [What is a Life?](/docs/how-size-works/what-is-a-life.md) * [Fees](/docs/wallet-and-store/fees.md) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://size.club/docs/how-size-works/what-you-risk-and-what-you-can-win.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.