# Black Hole Liquidity The purpose of gmUSD is to lock up the supply of gDAI and gmdUSDC. The greater the demand for gmUSD, the greater the Black Hole. As a result, this would ensure a healthy deposit locked in GMD’s USDC vault and gTrade’s vault, ensuring healthy growth for both protocols. Consequentially, his would also lead to more GLP being locked into the black hole, since it is the underlying asset of GMD’s USDC vault. --- # 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://gmd-protocol.gitbook.io/gnd-protocol/gmusd-working-mechanism/black-hole-liquidity.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.