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

# NFEX Perpetual Guide 

- [Trading Rules](https://nfex.gitbook.io/docs/nfex-perpetual-guide/trading-rules.md)
- [Contract Specifications](https://nfex.gitbook.io/docs/nfex-perpetual-guide/contract-specifications.md)
- [Price Index: NFEXI](https://nfex.gitbook.io/docs/nfex-perpetual-guide/price-index-nfexi.md): How does NFEX track closely the real-time mid price of NFT?
- [Mark Price & Last Price](https://nfex.gitbook.io/docs/nfex-perpetual-guide/mark-price-and-last-price.md): What's the difference between mark price and last price?
- [Leverage & Margin](https://nfex.gitbook.io/docs/nfex-perpetual-guide/leverage-and-margin.md): What is leverage and how is it applied?
- [Funding Rate](https://nfex.gitbook.io/docs/nfex-perpetual-guide/funding-rate.md): What is funding rate, why is it important and how to calculate
- [Liquidation](https://nfex.gitbook.io/docs/nfex-perpetual-guide/liquidation.md)
- [Insurance Fund](https://nfex.gitbook.io/docs/nfex-perpetual-guide/insurance-fund.md): What are insurance funds and how do insurance funds work
- [Auto-deleveraging(ADL)](https://nfex.gitbook.io/docs/nfex-perpetual-guide/auto-deleveraging-adl.md): What is Auto-delveraging and how does it work?
- [Fee Structure & Calculation](https://nfex.gitbook.io/docs/nfex-perpetual-guide/fee-structure-and-calculation.md): How to calculate trading commissions for NFEX perpetual swaps?
- [PnL Calculation](https://nfex.gitbook.io/docs/nfex-perpetual-guide/pnl-calculation.md): How to Calculate Profit and Loss for Perpetual Contracts
- [Referral Program and Affiliate Program](https://nfex.gitbook.io/docs/nfex-perpetual-guide/referral-program-and-affiliate-program.md): Spread the word about NFEX and earn money in the process