The Hong Kong dollar exchange rate fluctuates, with an interest rate of 2.7% per month.

On May 13, the Hong Kong dollar interbank interest rates fluctuated, with the one month interbank rate related to mortgages at 2.7%, unchanged; the three month interbank rate, reflecting the bank's funding costs, increased by 2.482 basis points to 2.90018%. The overnight interbank rate was 2.69548%, a decrease of 7.631 basis points; the one-week interbank rate was down by 1.351 basis points, at 2.68649%, and the two-week rate decreased by 1.494 basis points, at 2.68506%. As for longer-term interest rates, the six-month interbank rate increased by 5.333 basis points to 2.98815%, while the one-year rate rose by 2.75 basis points to 3.16161%.