The Swedish Financial Supervisory Authority will conduct an in-depth analysis of how changes in market rates affect the interest rate sensitivity of banks’ non-maturing deposits. The review will assess the resulting impact on interest rate risk in the banking book, including banks’ economic value and net interest income. The authority will collect quantitative information from 15 banks selected according to their size and business model. Non-maturing deposits represent a substantial source of bank funding and play a central role in managing interest rate risk outside the trading book, making their behavior particularly relevant during uncertain and volatile market conditions.