> For the complete documentation index, see [llms.txt](https://docs.syncrone.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.syncrone.fi/core-concepts.md).

# Core Concepts

- [Portfolio](https://docs.syncrone.fi/core-concepts/portfolio.md)
- [Holdings vs Positions](https://docs.syncrone.fi/core-concepts/holdings-vs-positions.md)
- [NAV & PnL](https://docs.syncrone.fi/core-concepts/nav-and-pnl.md)
- [Coverage](https://docs.syncrone.fi/core-concepts/coverage.md)
- [Data refresh cadence](https://docs.syncrone.fi/core-concepts/data-refresh-cadence.md)
- [Account management](https://docs.syncrone.fi/core-concepts/account-management.md)