[Health plans and insurance: financialization of companies and economic groups that control the private healthcare scheme in Brazil].

The article aims to describe the characteristics of financialization in a set of ten companies and economic groups operating health plans and insurance in Brazil from 2008 to 2016, selected according to their turnover and the size of their client portfolio. The financial/accounting and net worth dimensions were analyzed according to the balance sheets and cash flows, compared to microeconomic indicators of financialization and the records of changes in the shareholding structure filed with commercial boards. The authors analyzed the companies' policy positions based on primary data from semi-structured interviews with qualified representatives and the analysis of shareholder reports and news from the specialized media. In short, financial dominance is expressed in the health plans studied here, but their characterization does not follow a universally reproducible and homogeneous pattern, and empirical research should play a key role in further investigating the phenomenon. Since health and healthcare are defined constitutionally as publicly relevant goods that require support by stable and equitable policies in the distribution of available resources, and given the oligopolistic and concentrating trend in the inherent resources in the process of financialization (in opposition to this guideline) and the strategic place occupied by these companies, the prospects for the system as a whole tend to evolve towards an increase in total health expenditures, with greater concentration of healthcare resources and circulation of resources in the financial accumulation sphere.