In the real world, the dollar beats the euro by a ratio of roughly 3-to-1. In foreign exchange reserves, the greenback holds about 57% of the pie compared to the euro’s 20%. That’s a comfortable lead, not an existential one. Onchain, though, the gap isn’t a lead. It’s a chasm.

Euro-pegged stablecoins currently total approximately €711 million. That’s less than 1% of the total stablecoin supply when converted to dollar terms. The onchain ratio of USD-pegged to EUR-pegged stablecoins sits at over 300-to-1, according to analysis from Ryan Connor of RockawayX.

To put that in perspective: the eurozone is the world’s third-largest economy and the euro is the second-most-held reserve currency on the planet. Its onchain footprint, however, looks like a rounding error.

How the dollar got a 300x head start

The dominance of dollar stablecoins isn’t some grand conspiracy. It’s path dependency, plain and simple. Stablecoins were originally built to settle crypto trades, and those trades were priced in dollars from day one. Tether launched as a dollar peg. USDC followed the same playbook. The entire DeFi stack, from lending protocols to automated market makers, was architected around USD rails.