Governments around the world are slowly diversifying away from holding US Treasuries, a trend that’s been building for years. But private demand for dollars isn’t declining. It’s surging, just through a channel that most traditional economists didn’t see coming: stablecoins.

Dollar-pegged tokens like USDT and USDC are becoming the de facto savings accounts and payment rails for people in developing countries. And every dollar minted in stablecoin form needs to be backed by something. Increasingly, that something is short-term US government debt.

Tether is quietly a Treasury whale

Tether purchased $33.1 billion in US Treasuries during 2024. By early 2025, the company’s total Treasury exposure sat at roughly $113 billion, with about 66% of its reserves parked in short-dated government bonds.

Stablecoin issuers now hold more US debt than countries like South Korea or Germany. Circle, the issuer behind USDC, runs a similar playbook, backing its tokens with cash and short-term Treasuries. The entire stablecoin sector has become a structural buyer at the front end of the yield curve, soaking up T-bills with a consistency that would make any bond fund manager jealous.

Why developing markets are driving this

Over 80% of stablecoin transactions occur outside the United States. Roughly 66% of the global stablecoin supply, which sits at approximately $290 billion, is held by users in emerging markets.

The dollar has always been the world’s preferred store of value. Stablecoins just made it accessible without needing a US bank account, allowing the developing world to dollarize itself from the bottom up using blockchain rails rather than correspondent banking networks.

The Treasury market implications are real

Federal Reserve analyses have flagged stablecoins as a distinct and growing source of demand for T-bills, separate from traditional foreign buyers like central banks and sovereign wealth funds.

The concentrated buying at the short end of the curve has measurably compressed yields on instruments like 1-month T-bills. When Tether and Circle need to park hundreds of billions in safe, liquid assets, they want short-duration paper they can liquidate quickly if redemptions spike. That creates persistent bid pressure on exactly the instruments the US government needs to roll over most frequently.

Projections tied to the GENIUS Act suggest that legitimizing the industry could generate incremental Treasury demand ranging from hundreds of billions to as much as $2 trillion. The legislation would establish clear reserve requirements and regulatory oversight.

What this means for investors

Traders should watch the relationship between stablecoin supply growth and short-term Treasury yields closely. Rapid stablecoin minting tends to coincide with yield compression on T-bills, and any sudden redemption wave could create the opposite effect.

The front end of the yield curve now has a structural buyer that didn’t exist five years ago. That could mean persistently tighter spreads on short-duration instruments, forcing yield-seekers further out the curve or into riskier credit.

If the GENIUS Act passes in something resembling its current form, it would essentially codify stablecoins as regulated money market instruments with mandated Treasury backing. If it stalls or gets watered down, growth continues but at a slower pace and with more regulatory uncertainty hanging over the sector.