Fund is a collective investment tool, and its value is related to the performance of the securities market. If the investment performance of the fund is not good, the value of the shares held by investors may decline or even lose money. Fund companies will not deduct investors' money. The loss of the fund only means that the investment value of investors is reduced, and it will not lead to additional debts or liabilities. When buying a fund, investors only need to bear the risk of their own investment amount, and will not be in debt or deducted from extra funds due to fund losses. Investors can know their holdings according to the net value of funds regularly published by fund companies, and make corresponding decisions according to market conditions and personal investment goals.