A modest increase in bank deposit interest rates can significantly curb the growth of stablecoin market capitalization, according to new working paper research from the Bank for International Settlements (BIS). The findings suggest that traditional banks possess a quantifiable lever to influence the expansion of digital currencies, introducing a new dynamic to the competition between established financial institutions and the burgeoning crypto sector.
Why This Matters
The materials describe a narrow update: A new working paper from the Bank for International Settlements (BIS) indicates that traditional banks possess an underestimated defensive mechanism against the growth of stablecoins: increasing deposit interest rates. Whether the observed deposit outflow to stablecoins is currently occurring.
Broader Context
Source materials place the market analysis in this context: Previous reports on the GENIUS stablecoin bill and industry responses.
BIS Research: Deposit Rates as a Stablecoin Brake
The BIS study analyzed weekly data from January 2019 to June 2025 and found that a mere 0.01% (1 basis point) increase in average bank deposit rates was associated with a reduction in the average 10-week market capitalization growth rate of stablecoins, from approximately 15% down to about 12%. When the analysis accounted for banks’ passive adjustments to rates in response to deposit outflows, the inhibitory effect on stablecoin growth was amplified, reducing the 10-week growth rate from 15% to around 6%.
Researchers found that this sensitivity to interest rate changes impacts Circle’s USD Coin (USDC) more than Tether’s USDT. This differential effect is likely due to USDC’s stronger ties with U.S. users, who tend to be more responsive to domestic bank deposit rate changes. This empirical evidence lends support to concerns previously voiced by bank executives regarding potential deposit outflows to higher-yielding stablecoins and related products, which could, in turn, affect lending capacity and increase borrowing costs.
However, the BIS researchers caution that their findings are based on a single high-interest rate cycle and may not be directly applicable to future market conditions. The evolving landscape, including the rise of interest-bearing stablecoins and tokenized money market funds, introduces more competitive yield options beyond the simple comparison of stablecoins versus zero-interest bank deposits.
Broader Ecosystem Dynamics and Banking Strategies
Further analysis from the Federal Reserve offers a different perspective on stablecoin flows. According to this analysis, money flowing into stablecoins does not necessarily leave the banking system entirely. Stablecoin issuers often hold their reserves in traditional banks, creating what are termed ‘issuer deposits.’ While this alters the structure of bank funding, it does not necessarily reduce the total volume of deposits. A key concern highlighted is that these large issuer deposits may not be covered by deposit insurance, potentially requiring banks to hold more liquid assets and thus reducing their capacity for long-term lending.
The Federal Reserve’s analysis also proposes a ‘precision pricing’ strategy for banks. This approach suggests raising rates for customer segments deemed more likely to move funds, while maintaining lower rates for more loyal depositors. The aim is to control funding costs and make stablecoins less attractive without broadly increasing interest expenses.
Uncertainties and Future Outlook
Despite these potential banking strategies, the BIS study does not suggest that significant deposit outflows to stablecoins are currently occurring. Instead, it signals that interest rate pricing remains a variable within banks’ control. The core point, according to the BIS researchers, is that banks retain some influence through their deposit pricing strategies, even as the financial ecosystem evolves.
Uncertainties remain regarding the extent to which these dynamics will play out. It is not yet reported whether the observed associations between deposit rates and stablecoin growth translate into substantial, ongoing deposit outflows. Furthermore, the long-term impact of ‘issuer deposits’ on bank liquidity and lending capacity, as well as the degree to which banks will adopt ‘precision pricing,’ are subjects for future observation. The competitive landscape is also rapidly changing, with new digital yield products constantly emerging, suggesting that the interplay between traditional finance and digital assets will continue to evolve.
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