# vault types 1. **structured trading:** This vault actively trades dynamically using predictions generated from aarnâ AI agentic models, starting with rules or algorithms to buy and sell assets, automatically rebalancing underlying assets. Akin to quant funds, but fully onchain, permissionless, self-custodied 2. **yield aggregator:** It automatically allocates stablecoins (or other ERC-20 tokens) to various DeFi platforms (like Aave, Compound, Pendle etc) for lending or staking, allocated using aarna agents (such as, âTARS). This earns the user passive yield on their stablecoins. The agents also automatically rebalances user holdings to optimize returns. --- # 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.aarna.ai/atv-tokenization/vault-types.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.