# Interest? (IPX)

By [pnlrodeo](https://paragraph.com/@pnlrodeo) · 2024-10-04

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**Introducing Su: A Decentralized Money Protocol for Sui Network**

Su is a revolutionary money protocol designed for the Sui Network, offering a new way to manage volatility and stablecoin creation. Built on a set of smart contracts, Su transforms Sui (SUI) coins into two distinct asset classes: **Beta Coins** and **Leveraged Sui (xSui)**, providing users with stability or leverage depending on their risk preferences. The protocol allows for the creation of stablecoins and offers capital efficiency without requiring over-collateralization.

### Key Features of Su Protocol

1.  **Beta Coins**:
    
    *   **Sui Dollar (SD)**: A stablecoin with a beta of 1, pegged to the US Dollar, offering stability.
        
    *   **Fractional Sui (fSui)**: A "floating stablecoin" with a beta of 0.1, tracking 10% of Sui's price volatility, giving it low volatility but exposure to Sui's price movements.
        
2.  **Leveraged Sui (xSui)**: This asset absorbs the remaining volatility from Beta Coins, enabling users to take leveraged positions on Sui without liquidations or funding rates. It allows risk-seeking users to profit from price fluctuations.
    

### Solving the Stablecoin Trilemma

The stablecoin market typically faces the **trilemma** of having to sacrifice **decentralization**, **scalability**, or **stability**. Centralized stablecoins (like USDT) offer scalability but at the cost of decentralization, while over-collateralized solutions (like DAI) sacrifice capital efficiency. Su aims to solve these issues by offering decentralized stablecoins (SD and fSui) without requiring over-collateralization, thanks to the volatility absorption by xSui.

### Benefits of Su Protocol

*   **Decentralized Stablecoins**: SD and fSui are decentralized, free from reliance on off-chain assets, ensuring resilience against third-party risk.
    
*   **Capital Efficiency**: Unlike traditional stablecoin models, Su doesn’t require excessive collateral to maintain solvency. Instead, it transfers volatility to xSui users, allowing the system to remain liquid and capital-efficient.
    
*   **Liquid Staking**: Su stakes Sui collateral with validators, providing SD holders a higher APY than traditional savings options like U.S. T-Bills.
    

### Conclusion

Su introduces a novel approach to creating decentralized, scalable, and stable assets on the Sui Network. By dividing Sui into Beta Coins and Leveraged Sui, the protocol provides both stability for risk-averse users and leverage for those seeking to profit from volatility, making it a promising solution for DeFi’s stablecoin challenges.

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*Originally published on [pnlrodeo](https://paragraph.com/@pnlrodeo/interest-ipx)*