BIS Ties Bank Deposit Rates to Slower Stablecoin Growth

The Bank for International Settlements just dropped a paper that links ordinary bank deposit rates to crypto market dynamics in a direct way. A one-basis-point increase in deposit yields correlates with three percentage points less growth in stablecoin supply over the following ten weeks. The finding covers a period when the Fed and other central banks lifted policy rates sharply.

Why the Link Between Deposits and Stablecoins Caught Attention

Odd finding, really. Stablecoins were long viewed as an isolated corner of crypto, loosely tied to traditional rates. Yet the BIS data suggests that when banks pay even slightly more on deposits, some holders shift away from coins that offer no yield. The effect shows up in issuance figures rather than price volatility.

USDC suffered more than peers in the study. Its growth slowed faster once deposit rates moved. That stands out because USDC is the more regulated and transparent coin, with regular attestations and reserves parked at established custodians. Tether, by contrast, showed more resilience despite heavier scrutiny on its backing.

Context From the Rate-Hike Cycle

Stablecoins now sit above $160 billion in circulation. They function as the main settlement layer inside crypto trading and DeFi lending. When rates were near zero, parking cash in a stablecoin carried little opportunity cost. Once short-term yields climbed above 4 percent in money markets, the trade-off became obvious for larger holders.

Forex desks noticed the same pattern in USD liquidity. Reduced stablecoin growth can mean less demand for dollars in crypto venues, which occasionally shows up in cross-currency basis swaps and short-term funding spreads. The BIS result gives a concrete channel for that transmission.

The ten-week lag in the data lines up with how quickly some corporate treasuries reallocate when rates change. It also matches the speed at which stablecoin issuers adjust their own reserve portfolios.

What the Numbers Suggest for Dollar Flows

If the relationship holds, any future cut in deposit rates could reverse the drag. Stablecoin growth might accelerate again without any change in crypto sentiment. That would matter for traders watching USD funding conditions through an unconventional lens.

One basis point is tiny. The fact that it registers so cleanly in issuance data points to a market that has become more rate-sensitive than many assumed. The surprise lies less in the direction of the effect and more in its measured size.

What Comes Next

Watch the next round of Fed policy meetings and any moves in short-term Treasury yields. If deposit rates ease, the same models predict a pickup in stablecoin supply within a couple of months. That shift could feed back into dollar demand in offshore venues.

Correlation does not equal causation, and crypto markets can still be driven by leverage cycles or regulatory shocks. The BIS study covers a specific window; future data may diverge once stablecoin yields or new product structures appear.