The regulators said the flexibility could serve mutual funds as an additional investment product, provide investors with more options, increase corporate bond market liquidity, and promote the development of the securities market. Under the existing regulatory framework, the circular said mutual funds can only participate in CDS transactions as users, i.e., to buy credit protection only to hedge the risk on corporate bonds held by them. Furthermore, they can undertake such transactions only in fixed maturity plan (FMP) portfolios with a tenour of over a year.