What is the difference between stablecoins and cryptocurrencies? Characteristics and uses of stablecoins

Stablecoins offer price stability by pegging to assets like the USD, serving as a reliable medium for trading, remittances, and DeFi, despite regulatory and smart contract risks.

May 29, 2025 at 12:02 am

Stablecoins and cryptocurrencies are two categories of digital assets that serve different purposes within the blockchain ecosystem. While both are part of the broader cryptocurrency market, their characteristics and uses set them apart. This article delves into the differences between stablecoins and cryptocurrencies, focusing particularly on the characteristics and uses of stablecoins.

Definition and Basic Differences

Cryptocurrencies are decentralized digital currencies that use cryptographic technology to secure their transactions and to control the creation of new units. They are typically designed to operate as a medium of exchange independent of any central authority. Bitcoin, Ethereum, and Litecoin are examples of cryptocurrencies.

On the other hand, stablecoins are a type of cryptocurrency that aims to offer price stability by being pegged to another stable asset. This asset could be a fiat currency like the US dollar, a commodity like gold, or even another cryptocurrency. The primary goal of stablecoins is to combine the benefits of cryptocurrencies—such as fast and borderless transactions—with the stability of traditional financial assets.

Types of Stablecoins

Stablecoins can be categorized into three main types based on the mechanism they use to maintain their peg:

• Fiat-collateralized stablecoins: These are backed by fiat currencies held in reserve. For example, Tether (USDT) and USD Coin (USDC) are pegged to the US dollar and are backed by dollar reserves held in bank accounts.

• Crypto-collateralized stablecoins: These are backed by other cryptocurrencies. A notable example is Dai (DAI), which is pegged to the US dollar and backed by collateral in the form of Ethereum and other cryptocurrencies locked in smart contracts.

• Algorithmic stablecoins: These maintain their peg through algorithms that control the supply of the stablecoin. TerraUSD (UST) was an example of an algorithmic stablecoin before its collapse. These types of stablecoins do not have any collateral backing them; instead, they rely on mechanisms like burning and minting to adjust the supply and maintain the peg.

Characteristics of Stablecoins

Stablecoins possess several key characteristics that distinguish them from other cryptocurrencies:

• Price Stability: The most defining characteristic of stablecoins is their ability to maintain a stable value. This is achieved through their peg to a stable asset, which minimizes the volatility typically associated with cryptocurrencies.

• Transparency and Auditing: Many stablecoins, especially those that are fiat-collateralized, undergo regular audits to ensure that the reserves backing them are sufficient. Transparency reports and audits are crucial for maintaining trust in the stability of the stablecoin.

• Decentralization: While some stablecoins are more centralized, many aim to achieve a level of decentralization similar to other cryptocurrencies. For example, Dai is governed by a decentralized autonomous organization (DAO) called MakerDAO.

• Accessibility: Stablecoins can be easily accessed and traded on various cryptocurrency exchanges and platforms. They are often used as a gateway for people entering the cryptocurrency market, providing a more familiar and stable entry point.

Uses of Stablecoins

Stablecoins have a variety of uses within the cryptocurrency ecosystem and beyond:

• Trading and Liquidity: Stablecoins are widely used in cryptocurrency trading. They provide a stable medium for traders to move in and out of positions without converting back to fiat currencies. Tether (USDT) is one of the most used stablecoins for this purpose due to its high liquidity.

• Remittances and Cross-Border Payments: Stablecoins facilitate fast and low-cost international transfers. For example, someone in the United States can send USDC to a recipient in another country quickly and with minimal fees compared to traditional banking methods.

• Decentralized Finance (DeFi): Stablecoins play a crucial role in the DeFi ecosystem. They are used as collateral for loans, as a unit of account in lending and borrowing protocols, and as a stable store of value within DeFi platforms. Dai is extensively used in DeFi applications on the Ethereum blockchain.

• Hedging Against Volatility: Investors and traders use stablecoins to hedge against the volatility of other cryptocurrencies. By holding stablecoins, they can protect their portfolios from sudden price swings in the market.

• Payments and Transactions: Some businesses and online platforms accept stablecoins as a form of payment. This allows for quick and secure transactions without the volatility risks associated with other cryptocurrencies.

Risks and Challenges of Stablecoins

While stablecoins offer several advantages, they also come with their own set of risks and challenges:

• Regulatory Uncertainty: The regulatory environment for stablecoins is still evolving. Different jurisdictions may have varying rules and regulations, which can impact the stability and legality of stablecoins.

• Counterparty Risk: For fiat-collateralized stablecoins, there is a risk that the issuer may not have sufficient reserves to back the stablecoin. This was highlighted by the controversy surrounding Tether and its reserves.

• Smart Contract Risks: Crypto-collateralized and algorithmic stablecoins rely on smart contracts, which can be vulnerable to bugs and exploits. Any flaw in the smart contract could lead to a loss of peg or even a collapse of the stablecoin.

• Market Risk: Even though stablecoins aim to be stable, they are not entirely immune to market forces. Large sell-offs or market panics can lead to de-pegging events, as seen with TerraUSD (UST).

Frequently Asked Questions

Q: Can stablecoins be used for everyday purchases?

A: Yes, stablecoins can be used for everyday purchases, especially in regions where cryptocurrency adoption is high. Some online platforms and merchants accept stablecoins like USDT and USDC as payment methods. However, their acceptance is not as widespread as traditional payment methods like credit cards or cash.

Q: How do I buy stablecoins?

A: To buy stablecoins, follow these steps:

• Choose a reputable exchange: Select a cryptocurrency exchange that supports the stablecoin you want to purchase, such as Binance, Coinbase, or Kraken.
• Create and verify an account: Sign up for an account on the exchange and complete the necessary verification steps.
• Deposit funds: Deposit fiat currency or another cryptocurrency into your exchange account.
• Purchase the stablecoin: Navigate to the trading section of the exchange, find the stablecoin pair (e.g., USDT/USD), and execute your purchase.
• Withdraw to a wallet: After purchasing, you can withdraw your stablecoins to a personal wallet for storage.

Q: Are stablecoins safe to hold long-term?

A: The safety of holding stablecoins long-term depends on the type of stablecoin and the issuer's credibility. Fiat-collateralized stablecoins are generally considered safer if the issuer maintains sufficient reserves and undergoes regular audits. Crypto-collateralized and algorithmic stablecoins carry more risk due to their reliance on smart contracts and market dynamics. Always conduct thorough research and consider the risks before holding any stablecoin long-term.

Q: Can stablecoins be used in decentralized applications (dApps)?

A: Yes, stablecoins are widely used in decentralized applications (dApps), particularly in the DeFi sector. They serve as collateral, a unit of account, and a stable store of value within various DeFi protocols. For example, Dai is commonly used in lending and borrowing platforms, decentralized exchanges, and yield farming applications on the Ethereum blockchain.