6 price indices are calculated being the 3-month (91 days), 6-month (182 days), 9-month (273 days), 12-month (365 days), 15-month (456 days) and the composite indices.
Price indices with the base value of 100 on 2 January 2001 are calculated on a daily basis, and reflect the prices of bills and bonds at respective due dates. Price indices are indicative of the increase/decrease in GDS prices due to varying market interest rates. For example, the graph of the 91-day index continually reflects the variation in the prices of bills with 91 days to maturity.
The composite index is calculated for the purpose of reflecting the general trend of the market through the weighting of relevant maturities relative to issue amounts.
In calculating the price indices, reduction in the days to maturity is not taken into account. For this reason, price indices do not include the price increase that occurs due to reduced number of days to maturity.