What information is revealed about the investment layout of social security funds in the first quarter?

According to Wind data statistics, as of April 29th, the social security fund had a total of 520 top ten circulating shareholders in the first quarter, holding a total of 12.125 billion shares and a total stock market value of 161.729 billion yuan. Among them, 221 individual stocks hold over 10 million shares, with Bank of Communications, Founder Securities, and Guanghui Energy holding the highest number of shares. Social security funds hold 3.105 billion shares, 1.09 billion shares, and 188 million shares, respectively. From the distribution of social security fund holdings in the industry, they are mainly concentrated in materials II, capital goods, technology hardware and equipment, with 93, 84, and 58 respectively.