If the price difference cannot be provided for convertible bond holders to convert, that is, at maturity, investors only want the company to repay the money and do not want to convert it into company stocks, convertible bonds will become debt, exacerbating the already high debt ratio. 　　 　　 　　 Changing accounting firms is also worrying. The law stipulates that accountants must be replaced every four years, so changing accountants is not like changing a CFO, which can be nerve wracking, but changing accounting firms is a big deal. A company will go down the path of changing agencies, indicating that there are already agencies that are hesitant to apply for visas. 　　 The low shareholding of directors and supervisors also means that major shareholders do not even care about their own stocks, and investors holding such stocks should be careful. Analysts emphasize that the worst-case scenario is that directors and supervisors may even add insult to injury or sell stocks at low prices. Generally, listed companies use holding companies to buy and sell stocks. If even the shares of the holding company are cleared, and the idea of directors and supervisors holding shares is finally used, investors will avoid it unless someone takes over the management rights.