Under the guidelines of ethical conduct, your broker cannot: Make recommendations for the purchase or sale of a security that is not suitable for you, given your age, financial situation, investment objectives and investment experience. Purchase, sell or remove securities in your account without notifying you first. Switch you from one mutual fund to another with no legitimate reason. Intentionally misrepresent or fail to disclose material facts concerning an investment. Charge a customer excessive mark-ups, markdowns or commissions. Guarantee you stock will not lose money or make specific price predictions. Engage in a private securities transaction with you or other customers. Use any manipulative, deceptive or other fraudulent tactics.