Investment involves risks. The price of Callable Bull/Bear Contracts ("CBBC") may move up or down rapidly, and may become valueless, resulting in a total loss of investor's investment. There is an inherent risk that losses may be incurred rather than profit made as a result of buying and selling CBBC. CBBC has a mandatory call feature. CBBC must be terminated when the spot price / spot level of the underlying asset reaches or goes beyond the call price / call level prior to expiry, in which case, the holder of CBBC will or is likely to, lose all the investment. Investors bear the credit risk of the issuer and have no recourse to Hang Seng Bank Limited. Investors should make their own risk assessment and seek independent professional advice where necessary with respect to any exposure to derivative CBBC. If necessary, investors should refer to the relevant CBBC's listing documents (including the full text of the risk factors stated therein) in detail before making any investment decision.