What Are Stablecoins? A Complete Guide to How They Work, Types, and Risks in 2026

Stablecoins are cryptocurrencies designed to minimize price volatility by pegging their value to fiat currencies like the US dollar or Japanese yen, or to other assets. Compared to highly volatile cryptocurrencies such as Bitcoin, stablecoins offer greater price stability, making them ideal for payments, remittances, and bridging transactions within the crypto ecosystem. This article explains how stablecoins work, their various types, use cases, and associated risks, based on information current as of 2026.

How Stablecoins Work

Stablecoins maintain price stability through reserve assets (collateral) held by the issuer. For example, in the case of a stablecoin pegged to the US dollar, the issuer holds US dollars or US Treasury bonds as reserves equivalent to the amount issued. When a user purchases stablecoins, the corresponding fiat currency is deposited as a reserve asset; conversely, when redeemed, fiat currency is paid out from the reserves.

However, not all stablecoins are fully backed by fiat currency. Some attempt to stabilize their price using other crypto assets or algorithms. Since the types of collateral and management methods vary by token, it is essential to verify these details before use.

Types of Stablecoins

Stablecoins are primarily categorized into the following three types based on their underlying collateral assets.

• Fiat-Collateralized: These hold fiat currencies such as the US dollar or Japanese yen as reserve assets. Representative tokens include the US dollar-pegged "USDT (Tether)" and "USDC," as well as the yen-pegged "JPYC." This is the most common type and is considered to offer high price stability.
• Crypto-Collateralized: These hold cryptocurrencies such as Bitcoin or Ethereum as reserve assets. To mitigate price volatility risk, they typically require over-collateralization (collateral exceeding the issued value). A representative token in this category is "DAI."
• Algorithmic (Non-Collateralized): These do not hold specific reserve assets; instead, they use algorithms to adjust supply and demand in an effort to stabilize prices. There have been past instances of sharp price declines, making this type generally considered higher risk compared to others.

Use Cases for Stablecoins

The primary use cases for stablecoins are as follows:

• Bridge in Crypto Trading: When selling assets like Bitcoin, converting proceeds into stablecoins allows traders to wait for the next opportunity while avoiding price volatility risks.
• International Remittances and Payments: Compared to traditional fiat currency transfers, stablecoins can potentially reduce both time and costs. They are gaining particular attention as a remittance method for regions with limited access to bank accounts.
• Decentralized Finance (DeFi): In DeFi services such as lending and yield farming, stablecoins serve as a unit of stable value.

In Japan, the Payment Services Act was amended in 2023, establishing a legal framework for stablecoins. Under this framework, stablecoins issued by banks or fund transfer service providers are classified as "electronic payment instruments" and are subject to regulations designed to protect users. Conversely, directly purchasing foreign-issued stablecoins (such as USDT or USDC) on domestic crypto exchanges remains limited at present. The specific tokens available and the methods for purchasing them vary by exchange.

Risks of Stablecoins

Stablecoins are designed to maintain price stability, but it is essential to understand that they carry the following risks.

• Price Volatility Risk: Due to fluctuations in the value of underlying assets or operational issues faced by the issuer, the price of a stablecoin may deviate from its peg. There have been instances in the past where specific stablecoins experienced significant temporary price drops.
• Issuer Risk: If the issuer becomes insolvent, the redemption of reserve assets may be delayed. Additionally, some tokens lack transparency regarding how their reserve assets are managed.
• Regulatory Risk: Changes in regulations across different countries may restrict trading or usage. In Japan specifically, the handling of stablecoins issued overseas is restricted, meaning future legal amendments could impact their availability.
• Technical Risk: Funds may be lost due to vulnerabilities in smart contracts or hacking incidents.
• Liquidity Risk: For tokens with small market capitalizations, executing trades may be difficult.

When using stablecoins, it is crucial to fully understand these risks and make decisions at your own responsibility. Furthermore, please check the official websites of each service for the latest information regarding fees, interest rates, and other details.

Conclusion

Stablecoins are increasingly being utilized in cryptocurrency trading and payments, leveraging their price stability. However, they are not entirely risk-free; there are several important considerations, including the creditworthiness of the issuer and the regulatory environment. When using them, it is crucial to fully understand the characteristics and risks of each coin and to verify information from reliable sources.

Additionally, if you are considering trading cryptocurrencies, including stablecoins, we recommend referring to our comparison of cryptocurrency exchanges to select an exchange that suits your needs.

This article is for informational purposes only and does not recommend any specific coins or trades. Cryptocurrencies carry the risk of loss of principal due to price volatility, as well as risks such as hacking. Please ensure you have a sufficient understanding and trade at your own responsibility.

Risks and Disclosures

Risk: Cryptocurrencies are highly volatile, and there is a risk of losing your principal. This article provides general information based on data as of 2026-08-17 and does not constitute investment solicitation, advice, or a recommendation for specific assets. Trading eligibility and tax regulations vary by country/region; therefore, please be sure to verify the regulations in your country of residence and the latest terms of each exchange before trading.

Affiliate Disclosure: This article may contain advertising (affiliate) links, through which our site may earn compensation at no additional cost to you. Such compensation does not influence our evaluation content.

Frequently Asked Questions

What is a stablecoin?

A stablecoin is a type of cryptocurrency designed to maintain a stable value by pegging its price to a fiat currency like the US dollar or yen, or to other assets. Compared to Bitcoin and other volatile cryptocurrencies, stablecoins offer price stability, making them useful for payments, remittances, and as a bridge in crypto trading.

What are the different types of stablecoins?

Stablecoins are generally categorized into three main types: fiat-collateralized (e.g., USDT, USDC, JPYC), crypto-collateralized (e.g., DAI), and algorithmic (non-collateralized). Each type uses a different mechanism to maintain its price stability.

What are the risks associated with stablecoins?

Stablecoins carry several risks, including price volatility (if the peg fails), issuer default, regulatory changes, technical vulnerabilities in smart contracts, hacking, and liquidity risks. There is also the possibility that the stablecoin's value may deviate from its pegged asset, leading to a loss of principal.

Can I buy stablecoins in Japan?

In Japan, the 2023 amendment to the Payment Services Act brought stablecoins issued by banks and money transfer operators under regulation as 'electronic payment instruments.' However, directly purchasing overseas-issued stablecoins like USDT or USDC on domestic exchanges is limited. The availability of specific stablecoins and purchase methods varies by exchange.

Are stablecoins safe?

Stablecoins are designed to be stable, but they are not completely risk-free. Their safety depends on the issuer's credibility, the quality of backing assets, and the regulatory environment. It is important to understand these risks before using them.