Banks hold a rate lever over stablecoins
A BIS paper finds higher U.S. bank deposit rates slow stablecoin growth, with Circle's USDC the most exposed.
A Bank for International Settlements working paper using U.S. data from 2019 to 2025 finds that when bank deposit rates rise, stablecoin market growth slows. Circle's USDC shows the strongest sensitivity of any major token studied.
The mechanism BIS describes
The logic is plain. Stablecoins pay no interest to most holders, so they compete with bank savings accounts on convenience and yield at once.
When a bank account suddenly pays 4-5%, as many did through 2023 and 2024, a non-yielding dollar token loses its edge for anyone treating it as a cash parking spot rather than a trading or settlement tool.
BIS researchers treated deposit rates as a lever precisely because banks control them directly, unlike crypto demand shocks or regulatory headlines that move markets unpredictably.
USDC's rate sensitivity
- Higher U.S. bank deposit rates predict slower aggregate stablecoin market growth across the 2019-2025 sample, per the BIS working paper covered by Decrypt.
- Circle's USDC showed the strongest negative response to rising deposit rates among the stablecoins studied.
- The study spans a full rate cycle: near-zero Fed funds in 2020-2021, then rate hikes pushing above 5% in 2023.
- USDC's supply fell from roughly $45 billion in early 2023 to under $25 billion by late 2023, coinciding with the regional bank stress and higher deposit competition.
What the finding actually says
The obvious read is that this confirms stablecoins are fragile, chasing crypto sentiment and prone to runs. The BIS data points to something steadier: USDC behaves like a cash substitute responding to ordinary rate arbitrage, the same force that moves money market funds.
That's a different risk profile than a bank run. A depositor fleeing a troubled bank moves fast and does not come back once rates normalize.
A stablecoin holder chasing yield moves slowly and returns when the rate gap closes. The 2023 USDC outflows tracked deposit competition, not panic.
This also hands banks a tool they have mostly ignored. Raise rates enough and a chunk of stablecoin float finds its way back onto bank balance sheets, without a single regulation changing.
Circle's business model depends on exactly the dynamic that threatens it. USDC's reserves earn interest that Circle keeps, so the company profits when holders accept zero yield.
The BIS finding says that acceptance has a price elasticity, and banks set the price.
Signals to track next
- Watch USDC supply through the next Fed easing cycle; a BIS-consistent pattern means it should expand as bank deposit rates fall, reversing the 2023 contraction.
- Watch whether Circle or competitors like Tether introduce holder-facing yield; doing so would blunt the deposit-rate lever BIS identifies.
- Watch bank deposit rate moves after any Fed cut announcement and compare timing to stablecoin market cap shifts within the following one to two months.