EN
Legal limitations in Poland regarding activities of retiring funds exclude their direct investing in immovables, which leads to the decreasing of their diversification options, and consequently – in the authors’ to this paper opinion – to increasing potential investment risks. By means of some quantitative methods the authors analyze the effectiveness of investment portfolios of the retiring funds in Poland. The purpose of the present research is to achieve an answer to the question whether adding immovables to the investment portfolios of the Polish retiring funds would result in their better diversification and effectiveness.