Stablecoin Analysis: Definition, Classification, and Its Importance in the Digital Money Field

Stablecoins play a key role in the cryptocurrency industry. As of July 25, 2024, the market capitalization of stablecoins is approximately $165 billion, accounting for nearly 7% of the total cryptocurrency market of $2.417 trillion. Among them, Tether (USDT) is currently the third largest cryptocurrency by market capitalization, following Bitcoin and Ethereum.

This article will delve into the definition, classification, and significant role of stablecoins in the field of Digital Money. We will also explore its operational mechanism and potential risks through a case study of USDe.

Definition of Stablecoin

According to the definitions provided by the Financial Stability Board and the Bank for International Settlements, a stablecoin is “a cryptocurrency designed to maintain a stable value relative to a specific asset or a group of assets.” Typically, stablecoins are pegged to fiat currencies such as the US dollar.

The Necessity of Stablecoins

In the context of large-scale applications of Web3, stablecoins serve as a medium of exchange with stable value to facilitate daily transactions, while enabling fast and low-cost cross-border payments, avoiding the processing delays and high fees of traditional banking systems.

Compared to other cryptocurrencies, stablecoins help reduce the impact of value fluctuations. During periods of market volatility, stablecoins provide unique value stability, serving as a safe haven for value preservation.

Classification of Stablecoins

collateral stablecoin

Collateralized stablecoins are fully backed by other assets, ensuring their value is supported by other forms of collateral. The main types include:

1. Fiat-collateralized stablecoin: backed by reserves of fiat currency, such as the US dollar. Typical examples include USDT and USDC.
2. Commodity-backed stablecoins: supported by commodity reserves, such as gold. A typical example includes Tether Gold (XAUt).
3. Cryptocurrency collateral stablecoin: supported by reserves of other cryptocurrencies. A typical example is DAI.

algorithm stablecoin

Algorithmic stablecoins ensure the security of collateral through algorithms, or adjust market circulation to maintain stability. The main methods include:

1. Liquidation: Ensuring full collateralization of stablecoin debts by liquidating risk collateral through auction.
2. Burn and Mint: Influence prices by adjusting the token supply.
3. Adjusting lending rates: Controlling the supply of stablecoin by changing the lending rates.

It is worth noting that these classification methods are not mutually exclusive; stablecoins can adopt multiple mechanisms to maintain stability.

Security Risks and Solutions

1. Collateral Transparency: Enhance transparency through third-party custody, regular audits, and reserve proof reports.
2. Volatility of collateral value: Implement an over-collateralization and liquidation mechanism to mitigate the effects of value fluctuations.
3. Smart contract vulnerabilities: conduct strict security audits and continuous security monitoring.
4. Market Volatility: Design a robust stablecoin mechanism to cope with various market conditions.

Mainstream stablecoin analysis

The market shows a highly concentrated situation, with the top 5 stablecoins accounting for 96% of the total market value. Among the top 20 stablecoins, all stablecoins are backed by certain assets, with 9 of them also incorporating algorithmic stability mechanisms. This indicates a clear preference among users for fully collateralized stablecoins, particularly those backed by fiat currency.

USDe Case Study

USDe is a stablecoin issued by Ethena Labs and has currently become the fourth largest stablecoin by market capitalization. Its design principle is based on centralized exchanges and employs a “delta hedging” strategy to maintain the stability of the collateral assets.

The sources of income for USDe include staking rewards and the returns from delta-hedged derivative positions. However, USDe also faces some risks, mainly including:

1. Centralization Risk: Dependence on centralized exchanges may become a potential vulnerability.
2. Market Risk: A continuously negative funding rate may cause certain parts of the yield design to turn negative.

Conclusion

Stablecoins play an important role in the cryptocurrency ecosystem, providing stability and facilitating transactions. With the emergence of new stablecoins like USDe, market competition is becoming increasingly fierce. However, the security risks of stablecoins cannot be ignored; ongoing security audits and monitoring are crucial for maintaining market stability and trust.