Pension strategies in OECD countries, the dynamics of pension fund assets at the beginning of the third century are highlighted in the article. Long term demographic pressure from ageing are accompanied at the end of the second – the beginning of the third decades by pandemic challenges with unstable contributions, slowing expectancy gains in old age, problems of low retirement benefits. After the first year coronavirus pandemic stress, the retirement savings in pension funds grew faster than GDP in the OECD area. Pension fund assets continue growing in almost all countries of the area, with the highest rate in Turkey, Lithuania; also a double-digit growth assets rate in Finland, France, Greece, New Zeeland, the United States, etc. As pension fund assets show large variations across countries, the decline of assets was mentioned in Chile, Peru, Estonia. The largest volume of assets are in the United States pension funds leaving far beyond the assets in each of the other countries; but taking the assets percent of GDP, in the Netherlands, Iceland, Denmark it’s higher than in the United States.