Stablecoins Explained: The $300B Digital Dollar (2026)

Stablecoins are the boring, useful backbone of crypto — a ~$300B market of private digital dollars, now regulated by the GENIUS Act. What they are,… Aliteq Sam Okafor · Web3 & Chains Editor

A stablecoin is a token pegged to a currency (almost always the US dollar), issued by a private company and meant to hold a steady $1 value by being backed by reserves.

Two giants dominate: Tether (USDT, ~$184B) and Circle (USDC, ~$73B) are ~83% of a ~$306B market. USDT leads on supply; USDC has overtaken it on transaction volume.

They're crypto's settlement layer — the stable unit most on-chain trading, payments and DeFi actually use, because you don't want to price things in a volatile coin.

The GENIUS Act (2025) regulated them — a US federal framework requiring reserves and, notably, banning issuers from paying interest for simply holding the token.

Different from a CBDC: a stablecoin is private-company money backed by reserves; a CBDC is central-bank money. Same digital form, very different issuer and control.

A stablecoin is only as good as its reserves and its issuer. Two real risks: de-pegging (if the market doubts the backing, the peg can break — it has happened) and issuer/regulatory risk (a troubled…

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