Pension fund assets in the OECD countries including  Turkey has grown for the sixth consecutive year. Total assets managed by  pension companies reach 25.2 trillion USD. Pension funds in OECD countries  invest 51.3 percent of their portfolio in bills and bonds, 23.8 percent in  equities, and 9.6 percent in cash and deposits. Netherlands is the number one  country in terms of its ratio of assets under management to GDP  with 159.3 percent; while Turkey’s ratio is 5.5 percent. 
                                      
                                      “Assets under management, which represent 66.8 percent  of total private pension assets in OECD, constitute the major source of finance  for pension funds”
                                      Pension fund assets in the OECD continues to grow for the  sixth consecutive year in OECD (Organisation for Economic Co-operation and  Development) countries; reached a record high exceeding 25 trillion USD at the  end of 2014 in country groups including Turkey. Pension fund assets have been  constantly increasing in the OECD since the end of 2008; and have grown by 8.1  percent yearly on average over the last six years. As a result of the financial  crisis which led to a decrease of 19.4 percent in pension fund assets between  2007 year-end and 2008 year-end, the average growth of pension fund assets over  the last decade is lower than the average over the last six years, but is still  positive with a yearly increase of 5.5 percent. Fund portfolios especially in  developed countries pull away from traditional asset classes, while portfolios  of slightly less developed countries continue to favor more traditional  investment tools.   
                                      Pension funds remain the main financing vehicle for  private pension plans, with USD 25.2 trillion of assets under management,  representing 66.8 percent of the total private pension assets in the OECD. Banks  and investment companies’ managed funds account for 21 percent of total private  pension assets with 7.9 trillion USD. Pension insurance contracts follow with  11.6 percent, managing 4.4 trillion USD; and employers’ book reserves accounts  for 0.6 percent of total private pension assets with 0.2 trillion of assets  under management. In Turkey, however, 100 percent of assets under management  consists of pension investment funds.  
                                      “Share of investments in traditional asset classes is  84.7 percent in OECD countries, and 89.6 percent in non-OECD countries”
                                      According to 2014  results, pension funds in OECD countries invest 51.3 percent of their portfolio  in bills and bonds, 23.8 percent in equities, and 9.6 percent in cash and  deposits. The total allocation to these asset classes, considered  as traditional , was therefore 84.7 percent on average. Pension funds in  non-OECD countries tend to favour traditional asset classes slightly more than  those in OECD countries, as they invested 27.3 percent of their portfolio in  equities, 51.9 percent in bills and bonds and 10.3 percent in cash and deposits  on average. This means that the rate of traditional asset classes equals ro  89.6 percent of total pension funds portfolio in non-OECD countries. 
                                      While pension funds in small pension markets may tend to  favour equities to get higher returns, pension funds in most of the largest  pension markets have showed an increasing interest in alternative asset  classes, such as private equity in Brazil, land and buildings in Canada,  derivatives in the United Kingdom and other investments in the United States. 
                                      “Pension fund assets have grown on average by 8.1  percent yearly since the end of 2008”
                                      The weighted average asset-to-GDP ratio for pension  funds reached 84.4 percent in OECD countries and 36.4 percent in selected  non-OECD countries at the end of 2014. In Turkey, this rate stands at 5.5  percent”  
                                      Since the financial crisis in 2008, pension fund assets  have been constantly increasing in the OECD. Pension fund assets have grown on  average by 8.1 percent yearly since the end of 2008. The weighted average  asset-to-GDP ratio for pension funds reached 84.4 percent in OECD countries and  36.4 percent in selected non-OECD countries at the end of 2014, with the  Netherlands having the highest ratio at 159.3 percent of GDP. Iceland (with a  ratio of 146.8 percent) and Switzerland (with a ratio of 120.3 percent) were  the other two countries that followed Netherlands with a ratio of assets under  management to GDP higher than 100. In Turkey, ratio of pension funds in the GNP  stands at 5.5 percent; compared to the ratio of Greece with 0.6 percent, and  France with a ratio of 0.5 percent. For countries where the asset-to-GDP ratio  for pension funds is low, this situation is interpreted with the fact that  financed pension systems have not reached the sufficient level of  maturity.  
                                      In a few countries however, pension funds do not account  for the largest share of private pension assets. In Denmark, France, Korea and  Sweden for example, insurance companies hold more pension-related assets than  pension funds. In Denmark, most of the occupational pension plans are managed  by specialised life insurance companies. Overall, assets in pension insurance  contracts in Denmark represented 138.6 percent of GDP at the end of 2014, while  assets in pension funds were 48.6 percent of GDP.
                                      The growth of assets  in 2014 was underpinned by positive investment returns. All the reporting OECD  countries recorded positive real investment returns, net of investment  management costs, in 2014, ranging from 1.2 percent in the Czech Republic to  16.7 percent in Denmark, with an OECD weighted average of 5.0 percent. Outside  the OECD area, pension funds also recorded positive returns, but lower than in  the OECD area, on average 1.2 percent. The real net investment return of  pension funds measured over the last five and ten years was also positive in  most OECD and non-OECD countries. In Turkey, real net investment return of  pension funds stand at 5.6 percent. With this ratio, Turkey gets a modest spot  among OECD countries. 
                                      In European countries and countries with small or no  domestic capital markets, pension funds have a high share of investments  abroad. In nine reporting OECD countries and eight reporting non-OECD  countries, pension funds had more than 30 percent of their portfolio invested  abroad at the end of 2014. Among these countries, 11 were European countries:  Bulgaria, Estonia, Italy, Kosovo, Latvia, Lithuania, the Netherlands, Portugal,  the Slovak Republic, Slovenia and Switzerland. In seven additional European  countries, pension funds invested between 10 percent and 30 percent of their  portfolio abroad. The three countries which invested the most abroad in 2014  were Kosovo, with 94.1  percent of the  pension portfolio invested abroad, the Netherlands with 81.7 percent and  Estonia with 77.7 percent. 
                                       
                                      Number of  participants in Individual Pension System (BES) exceeded 6 million 200 thousand  system as of May 2016, with total fund size reaching over 47.5 million TL.  Compared to many other developed countries, Turkish system has not reached a  sufficient level yet. However, the momentum of its progress is promising. 
                                      In most of other  countries, pension funds may invest in different type of assets; but in Turkey,  all BES funds are pension funds. Book reserves, pension insurance contracts and  other asset classes in which funds in other countries invest, are non-existent  in BES funds of Turkey. 
                                      The distribution of  pension funds by asset allocation for selected investment indicates that 13.5  percent of Turkey’s portfolio is invested in equities, 63.3 percent in bills  and bonds, 18.3 percent in cash and deposits. According to the evolution of  equities and bonds over the years, the highest change was in Poland with 48.5  percent, while the change in Turkey is -0.5 percent. 
                                      According to the variation  of investments in alternative asset classes, Portugal gets the highest  variation rate with 14.5 percent; whereas in Turkey, it is -7.8 percent.