The article reveals the features of the formation of network human capital. The characteristic of new network properties of human capital of Millennials in modern economy is given. The main trends in the transformation of employment and new digital competencies of Millennials in the use of Big data. The provision on capitalization of investments in network human capital is proved. The specificity of the activity of Millennials in social networks is shown. The tendencies of transformation of financial markets in the conditions of digital economy are revealed.