"New FINRA Rule 2111 generally is modeled after former NASD Rule 2310 (Suitability) and requires that a firm or associated person "have a reasonable basis to believe that a recommended transaction or investment strategy involving a security or securities is suitable for the customer, based on the information obtained through the reasonable diligence of the member or associated person to ascertain the customer's investment profile".Following are some of the more substantive changes under FINRA's new "know your customer" (KYC) rules