First of all, we need to know whether the platform you made is legal. If it is legal, the money you lost in the stock market can't be recovered, and neither can the four legal futures exchanges in China. However, if it is a black platform, it is confirmed to be a fraud company, and 98% can be traced back. This is a successful case.

Calling the police may help you recover the principal, but the alarm effect in such cases is not good. First, fraudulent companies may be established overseas and protect themselves with overseas IP. After a wave, change your name or just run away. Second, it is difficult for the police to investigate and collect evidence overseas. If they have to contact foreign police, they may face a shortage of police force.

Another method is negotiation. Of course, the premise of negotiation is that you have the necessary evidence, screenshots of various chats (such as guaranteed income) and screenshots of fund transfer (such as bank records), and then contact a legal and formal law firm, so that lawyers can contact fraud companies as much as possible. When your attorney complains and reports the case, the swindler partially compensates you on the condition of withdrawing the case and covering up the crime. Of course, in the process of consultation or negotiation, how to make fraudulent companies increase the proportion of compensation depends on the experience and methods of lawyers.

I hope my answer can help you, but you can ask.