Aspiro

Home → Blog

What Is a Stablecoin? USDT vs. USDC vs. DAI Explained

A stablecoin is a cryptocurrency whose price is pegged to a regular currency, most often the US dollar. Here's how they work, how they differ, and what risks holders take on.

Aspiro Editorial · 18.10.2026

What it is

A stablecoin ("stable coin") is a token that aims to be worth exactly $1. It lets you hold money in crypto without price swings.

Types

TypeBacked byExample
Fiat-backedCash and bonds held by the issuing companyUSDT (Tether), USDC (Circle)
Crypto-backedOvercollateralized crypto in a smart contractDAI
AlgorithmicMinting and burning rulesTerraUSD (UST), which collapsed in 2022

More in the article what is USDT.

What they're used for

Risks

Our partner link. If you decide to open an OKX account, sign up through it: it's free for you and doesn't change your terms. If you trade, the exchange pays Aspiro a referral bonus, which goes toward developing our apps and the free Academy. We have no access to your account, money or trades.

Open an OKX account with our link Step-by-step guide

  • A stablecoin is pegged to a currency, usually the dollar.
  • USDT and USDC are backed by reserves; DAI is backed by crypto.
  • There are risks: the issuer, depegging, network mistakes.

Frequently Asked Questions

Which stablecoin is the most reliable?

None is completely reliable. USDT is the most widely used; USDC is known for regular reserve reports. Many people split their funds between several.

Can you earn money on a stablecoin?

By itself, it doesn't rise in price. Some platforms offer interest for depositing it, but that's a separate platform risk, not a property of the coin.

Is a stablecoin the same as a dollar?

No. It's a token issued by a company or protocol that aims to be worth $1. Its reliability depends on the issuer and the backing mechanism.

Start with free education

A step-by-step OKX guide and free Aspiro Academy courses: 26 lessons on investing and trading from scratch, with practice and a certificate.

OKX guide: sign-up and first trades →

Read also

Ask a question

Questions about learning, Aspiro apps or exchanges? Message me — I reply personally.

Message on TelegramDmitriy Smirnov · +7 708 808 88 99