The ever -increasing share of NIF is a non -guaranteed emission, also known as a program of commercial Eurobumag. Emissions of non -guaranteed securities, when there is no bank for their guaranteed placement, are usually considered a relatively risky source of financing, since it is impossible to expect support for the market, if the issue does not bring the expected results, that is, the bonds will not be sold. The most famous example of this type of securities is the so -called «catchy bonds», that is, released by companies with high risk. However, they are attractive in that they may be highly profitable. Book bonds were very popular in the 80s.