The 12-month Euribor rate fell below 2.8 percent on Wednesday, dropping to 2.776 percent.
On Tuesday, the 12-month Euribor still stood at 2.858 percent, meaning the rate dropped by 0.08 percentage points in a single day.
Nordea's chief analyst, Jan von Gerich, noted on messaging service X that the decline was unusually steep.
The Euribor is short for the Euro Interbank Offered Rate and is based on the average interest rate at which European banks borrow from one another. This rate is commonly used as the reference rate for Finnish mortgages, making it a key influence on household finances in the country.
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