Is it serious to receive a short message reminder from securities?

Nothing serious. Securities short message reminder is an automatic risk reminder of the software system of securities companies, and it is also an automatic reminder of holding stocks. It is normal for securities companies to issue risk warnings, so it is not serious. For example, on the day when new shares and bonds are listed by lottery, brokers will notify them of the listing of new shares and bonds by SMS before the opening, and remind them of the risks. Securities are all kinds of economic rights and interests certificates, and also refer to specialized products. It is a legal document used to prove that the holder enjoys certain rights.