What Is a Stablecoin? Types, Risks and How They Hold Value

What stablecoins are for

Most crypto prices move a lot, which makes them awkward for payments, saving or pricing. A stablecoin aims to fix that by targeting a steady value, typically one US dollar per token. You can then move value across borders, trade against it, or park funds between trades without converting back to a bank currency.

Main types

Fiat-backed stablecoins are issued against reserves of traditional currency and similar assets. Circle, for example, states that USDC is redeemable one to one for US dollars and that its reserves are held in cash and cash-equivalent assets, with monthly attestations published; those are Circle's statements and you should read the current attestations yourself. Crypto-backed stablecoins lock other crypto as collateral and use rules to keep the token near its target. Algorithmic designs rely on code and incentives rather than full reserves, and have a history of failing under stress.

What can go wrong

A peg can break if reserves are insufficient, if the issuer cannot or will not redeem, if collateral falls faster than the system can adjust or if the mechanism loses market confidence. Regulation and bank access for issuers also matter. Holding the token in a self-custody wallet protects you from exchange failure, but not from a problem with the issuer or reserves themselves.

How to evaluate one

Look at who issues it, what backs it, how and how often reserves are reported, whether redemption is open to ordinary users and how it behaved in past market stress. A price of exactly one dollar on a quiet day tells you little.