Dollar-pegged stablecoins hold roughly $302B of tracked supply; every other currency combined holds under $1B. The gap is structural, not a rounding error.
Source: DIA on-chain data
Dollar-pegged stablecoins are roughly $302B of tracked on-chain supply. Every other currency combined is under $1B. On a linear axis that gap reads as a rounded edge; on a log axis it is the single structural fact about the market.
Live DB read (2026-08-13), circulating USD from the vault layer:
USD is roughly 450 times the combined non-dollar total. USDT plus USDC alone is $255B of the $302B, about 84% of the whole market. External anchor: the FATF put the global stablecoin market cap at $316B in October 2025; the map's tracked universe is $303B, so the dollar share on the map is not an artefact of a narrow coin list.
The gap is a statement about what stablecoins are for. The FATF and BIS both frame stablecoins as a dollar-completion instrument: 97% of fiat-backed supply is dollar-denominated, and 90% of market cap sits in USDT and USDC. The hundreds of non-dollar coins are real products with real issuers, but their combined supply is smaller than a single mid-tier dollar issuer. That is not a market failure of the non-dollar coins. It is the feature: the dollar is the settlement currency of the world economy, so the stablecoin market is a dollar market that carries small regional edges. The fascinating part is below the line, in the regional coins that do exist and what they reveal (JPY's bank-led buildout, the sanctioned RUB rail, Turkey and Argentina's flight to the dollar). Those are the stories; the dollar monolith is the canvas they sit on.
- USD: $301.8B across 82 coins, 36.8M holders. - Non-USD combined: under $1B across 72 coins. - USDT + USDC: $255B = 84% of tracked universe.