# Ribbon Earn stETH Ribbon Earn stETH uses the 0.5% of deposited funds as well as the yield generated from staking ETH onLido to fund exotic options and enhance the yield earned on stETH. So the vault employs a fully funded [dolphin strategy](/ribbon-earn/ribbon-earn-steth/what-is-a-dolphin-strategy.md) through which depositors can capitalise on the upside ETH movements while also ensuring their capital is protected up to 99.5% per trade. The name "dolphin" (or "sharkfin") comes from the shape of the vault yield curve, that of a "[dolphin's fin](/ribbon-earn/ribbon-earn-steth/what-is-a-dolphin-strategy.md)". --- # 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.ribbon.finance/ribbon-earn/ribbon-earn-steth.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.