In various countries, trading based on insider information is illegal because it is seen as unfair to other investors who do not have access to the information as the investor with insider information could potentially make far larger profits that a typical investor could not make.
Trading based on insider information is illegal. This is in various countries. It is seen as unfair to other investors. These other investors do not have access to the information. A typical investor could not make. The investor with insider information could potentially make far larger profits this.