# Instruments and Participants Over the past forty years, the market for rates instruments used to support rate profile optimization has grown to over $464 trillion (Source: [BIS, May 2020](https://stats.bis.org/statx/srs/table/d7?f=pdf) ) and spans an array of instruments including: * Fixed for floating rate interest rate swaps (“vanilla swaps”) * Fixed for fixed rate (eg basis swaps) * Interest only and principal only swaps * Overnight interest swaps * Contracts for difference and maturity swaps * Structured products based on underlying cash flows (eg strips, etc) * Caps, floors, collars and other agreements limiting the extent to which market rate changes can impact a borrowing relationship The participants in these markets include: * Corporate treasury desks and funding desks * Institutional investors and asset managers * Speculators and proprietary trading functions * Brokers and other market makers * Liquidity management functions of banks and other large financial institutions * Risk management functions * Insurance companies --- # 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.swivel.finance/swivel-v2.0.0/other-resources/institutions/rate-profile-optimization/untitled-2.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.