# TickerInside > What is inside a ticker: holdings overlap between funds computed three ways from issuer files, which funds hold a given stock and at what weight, correlation and drawdown over stated windows, and a free portfolio x-ray. Every figure carries the date of the data behind it. ## Decide between two funds - [Fund comparisons](https://tickerinside.com/compare/): verdict first, overlap with its method and date ## Tools - [Overlap checker](https://tickerinside.com/overlap/) - [Portfolio x-ray](https://tickerinside.com/xray/) ## Data and agents - [JSON API](https://tickerinside.com/api/) - [For AI agents](https://tickerinside.com/agent/): MCP server and a prompt to paste - [How the numbers are produced](https://tickerinside.com/how-the-numbers-are-produced/)