Mutan rate

Japanese overnight bank loan rate

The Mutan interest rate is the un-collateralized overnight call rate in Japan. It is the reference rate for JPY overnight unsecured transactions in the Japanese market. It was launched in July 1985^[1] and it is the main tool for the transmission of the Bank of Japan's monetary policy. Mutan rate and TONA rate are the same things.

Publication

Bank of Japan publishes a provisional rate, rounded to three decimal places,^[2] every business day around 17:15 JST (or 18:15 JST for the last business day of the month).^[3] A final result is published the following business day around 10:00 JST. The results published contain weighted-average, highest, and lowest rate during the business day.^[4]

References

^ BOJ's Main Time-series Statistics
^ "Change in the smallest tick in uncollateralized overnight call rate". Bank of Japan. September 6, 2001. Retrieved June 25, 2012.
^ "Revision of the publication of "Uncollateralized overnight call rates (average)". Bank of Japan. September 6, 2002. Retrieved June 25, 2012.
^ "Release of the Data Related to the Bank's Operations and Uncollateralized Overnight Call Rate". Bank of Japan. May 6, 2004. Retrieved June 25, 2012.