The weighted average effective yield to maturity according to the Hungarian government bond and Eurobond market index is calculated based on a portfolio of fixed coupon rate securities issued in EUR with a remaining maturity of at least 360 days and an issue volume of at least 500 million euros. The index includes securities that were quoted on the Cbonds website for at least 16 trading days in the past. The revision of the list of issues forming the index, as well as the inclusion of new issues, is carried out monthly.