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

# Platform Spec

- [Portfolios](https://docs.concordia.systems/platform-spec/portfolios.md): Portfolios are risk boundaries of assets & liabilities
- [Risk Framework](https://docs.concordia.systems/platform-spec/risk-framework.md)
- [Market Risk](https://docs.concordia.systems/platform-spec/risk-framework/market-risk.md)
- [Rebalancing (Liquidation)](https://docs.concordia.systems/platform-spec/risk-framework/rebalancing-liquidation.md)
- [Preventing Bad Debt](https://docs.concordia.systems/platform-spec/risk-framework/preventing-bad-debt.md)
- [Composite Operations](https://docs.concordia.systems/platform-spec/composite-operations.md)
- [Pricing Engine](https://docs.concordia.systems/platform-spec/pricing-engine.md): How does Concordia collect and stream real-time prices