The aim of the paper is to evaluate the P2P loan portfolio of the company Zonky and the
portfolio of structured certifcates of P2P loans. P2P loans are a part of a new economic
concept, based on people’s co-operation. In particular, the position of the investor who
has fnancial surpluses and is modelling their investment portfolio, is investigated in such
a way as to achieve the optimal proftable allocation of resources. Markowitz’s portfolio
concept is applied, adjusted to be compatible with various ratings for P2P loans. The
paper concludes that the concept of P2P loans has a perspective. It is conditioned by the
low interest rates banks apply to citizens’ deposits and the reluctance of banks to lower
interest rates on credit cards and consumer and overdraft loans
