This paper examines the transformational shifts in investment strategies of sovereign wealth funds. It analyzes the basic theory of sovereign wealth funds and justifies the need for its development. It identifies the similarities and distinguishing features of sovereign wealth funds. Four types of sovereign wealth funds are characterized, and the key requirements for their management system are clarified. Analysis results for the changing capital among the world’s largest sovereign wealth funds since the start of the Covid-19 pandemic are given. Market value trends of the Government Pension Fund Global (Norway) for 1998-2021 were revealed, and a prediction of its changes for the period until 2026 was created. The influence of the Covid-19 epidemic on the structure of investment portfolios (including the emergence of a new class of assets) was presented, along with GPFG’s investment strategy. Changes in the amount of NWF’s funds (Russia) for the period 2008-2021 were presented and its growth for 2022-2023 was predicted. The transformation of NWF’s liquidity regulatory structure was assessed. New trends in the investment activities of sovereign wealth funds, which occurred under the influence of the Covid-19 epidemic, were revealed. These include reduced risk appetite, increased investment activity, and a higher share of direct investments in asset portfolios. Individual sovereign wealth funds were used to compile a chart of their investment portfolios, which were diversified depending on investment goals and risk level. Recommendations for building the investment strategy of sovereign wealth funds were formulated, with a proposed algorithm for its formulation, including three consecutive stages. It is noted that the results of implementing the investment strategy of sovereign wealth funds directly depends on management quality, whose efficiency can be assessed using special indicators.