# Exchange: amount reserved You can enter in the menu Exchange that the trader may not (re) invest a maximum of X amount of the available balance. This gives you the opportunity, once all your resources have been invested, to ensure that any amount released from the sale is not reinvested. This way you keep it free for a withdrawal or to keep a reserve for sudden price falls (reinvest at a lower price). You can adjust this amount as often as necessary. Example: You have deposited 5,000 euros and everything is invested. You state a 2,000 euro reservation at the exchange institution. The trader will only make purchases again if he has more than 2,000 euros free balance, and only with the amount above 2,000 euros. Until then, he will sell, but will not make any purchases. --- # Agent Instructions: 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: ``` GET https://docs.bitbrokertrade.com/english/untitled/explanation-functionalities/exchange-amount-reserved.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.