# Vault Assets Aera Vaults are developed to hold and rebalance two or more ERC20 assets. For v1, the two assets used are ETH (specifically WETH) and USDC. From our research, we have concluded that most crypto assets have strong inter-correlation and we feel that ETH and USDC capture two important components and can mimic the essential price behavior of a wider class of assets while showing more stability as a reserve asset. --- # 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.aera.finance/v1-archive/concepts/vault-assets.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.