Is it permissible to subscribe to the described government savings fund, which invests a portion of its money in government securities, bonds, stocks, loans, real estate, and bank deposits?

It is not permissible to subscribe to the aforementioned optional fund due to its inclusion of Sharia violations, such as depositing money in usurious banks and purchasing tradable shares and bonds in the stock market, along with the associated prohibitions. For participation in savings funds to be permissible in general, the money must be invested in a Sharia-compliant manner, free from usury and all other violations, and it must be separate from funds invested in a prohibited manner. It is more prudent to have a competent and pious Sharia supervisory board to monitor this.