# Pickle Jar Strategies ## Introduction Each PickleJar employs a Strategy contract to earn yield for its depositors. In this document, we explore the types of Strategies being employed and how these work under the hood. The PickleJar system is largely based on Yearn's v1 [yVault](https://yearn.finance/vaults) system, and therefore the most relevant function is the `harvest()` function, which is what executes the profit-generating steps. All Strategy contracts are being developed under the [`src/strategies`](https://github.com/pickle-finance/protocol/tree/master/src/strategies) directory of the [protocol](https://github.com/pickle-finance/protocol) repository. For a listing of all currently deployed Strategy contracts, see the [contracts](https://github.com/pickle-finance/contracts#pickle-jars-pjars) repo. All pickle jars have 20% performance fee. The displayed APY% is the net APY after the fees. --- # 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.pickle.finance/appendix-c-previous-docs/old-docs/pickle-jar-strategies.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.