If you lose more than 3000 yuan in buying a fund, your principal is greater than the loss. Because the worst case of the fund is full payment, even if it is completely lost, it only includes all the principal. Therefore, I lost more than 3,000 yuan in buying the fund, and the principal was at least 3,000 yuan.

Fund and stock are different concepts. Fund is a kind of collective securities investment with returns and risks, that is, by issuing fund shares, investors' funds are pooled, managed by fund custodians and managed and used by fund managers. Stock is a certificate issued by a joint-stock company to prove the shares held by shareholders, and it is the form of company shares.