# HFDX

> HFDX is a decentralized perpetual exchange offering non-custodial crypto trading, structured DeFi yield through crypto liquidity loan notes, and fixed return DeFi strategies. Trade on-chain perpetuals with full self-custody on a crypto perpetual DEX.

HFDX enables on-chain perpetual trading directly from user wallets. The platform combines a decentralized perpetual exchange with structured DeFi yield products, allowing users to trade perpetuals or earn returns through crypto liquidity loan notes.

## Core Capabilities

- Decentralized Perpetual Exchange with self-custody architecture
- On-Chain Perpetual Trading with sub-2ms execution
- Crypto Perpetual DEX supporting Ethereum, Polygon, and Solana
- Non-Custodial Crypto Trading via smart contracts
- Structured DeFi Yield through professionally managed strategies
- Crypto Liquidity Loan Notes with fixed return DeFi strategies
- Smart contracts audited by Certik and Coinsult

## Documentation

- [HFDX Platform](https://hfdx.xyz/): Decentralized perpetual exchange homepage
- [Investment Strategies](https://hfdx.xyz/invest): Structured DeFi yield products and crypto liquidity loan notes
- [FAQs](https://hfdx.xyz/faqs): What is a Perpetual DEX, How DeFi Yield Works, Risks of On-Chain Trading
- [Full Documentation](https://hfdx.xyz/llms-full.txt): Complete HFDX platform details

### Technical Documentation

- [Executive Overview](https://hfdx.xyz/docs): HFDX is a fully decentralized, non-custodial perpetual futures protocol with institutional-grade transparency and capital efficiency.
- [Core Concepts & Definitions](https://hfdx.xyz/docs/core-concepts): Learn about HFDX perpetual futures, non-custodial architecture, unified liquidity pools, and Liquidity Loan Notes for structured DeFi yield.
- [Protocol Architecture](https://hfdx.xyz/docs/architecture): Explore HFDX modular architecture: Router, Margin Engine, Liquidity Pool, Funding Module, Oracle System, and Liquidation mechanics.
- [Trading Module](https://hfdx.xyz/docs/trading): Understand HFDX trade lifecycle, margin calculations, liquidation mechanics, and funding rate model for perpetual futures.
- [Liquidity Pools & Capital Efficiency](https://hfdx.xyz/docs/liquidity-pools): Learn how HFDX unified liquidity pools work, including pool accounting, utilization ratios, and LP vs LLN comparison.
- [Liquidity Loan Notes](https://hfdx.xyz/docs/liquidity-notes): Discover LLN lifecycle: subscription, locking, accrual, maturity, and redemption with deterministic yield formulas.
- [Returns, Accounting & Settlement](https://hfdx.xyz/docs/settlement): HFDX on-chain accounting system: continuous accrual, scheduled settlement, and atomic payout execution.
- [Fee Structure](https://hfdx.xyz/docs/fees): Transparent fee model: trade fees, funding fees, liquidation fees, and LLN fees with on-chain enforcement.
- [Security Model & Auditing](https://hfdx.xyz/docs/security): HFDX security philosophy: immutable core logic, upgradeable periphery, formal invariants, and audit processes.
- [Risk Framework](https://hfdx.xyz/docs/risk): Risk mitigations for volatility, oracle issues, smart contract vulnerabilities, and liquidity utilization spikes.
- [Comparative Analysis](https://hfdx.xyz/docs/comparison): Compare HFDX vs Hyperliquid: custody model, liquidity approach, transparency, and structured yield capabilities.
- [Audit Appendix](https://hfdx.xyz/docs/audit): Protocol invariants: pool solvency, oracle freshness, margin enforcement, and LLN collateralization guarantees.
- [Jurisdictional & Compliance Notice](https://hfdx.xyz/docs/compliance): HFDX is permissionless infrastructure. Users are responsible for local regulatory and legal compliance.
- [No Advice Disclaimer](https://hfdx.xyz/docs/disclaimer): This documentation is informational only and does not constitute financial, legal, or tax advice.

## Legal

- [Terms and Conditions](https://hfdx.xyz/terms-and-conditions): Platform terms of service
- [Privacy Policy](https://hfdx.xyz/privacy-policy): Data handling practices
- [Risk Disclosure](https://hfdx.xyz/risk-disclosure): Risks of on-chain trading and DeFi participation

## Optional

- [Cookies Policy](https://hfdx.xyz/cookies-policy): Cookie usage information