Tracker Bonds
These bonds typically lock up a lump sum for a term of about five years. At the end of the term you are usually guaranteed to get back at least what you invested (or a high percentage of what you invested, such as 90%), together with a bonus related to the growth, if any, in one or more stock markets or in the shares of certain large multinationals.
If the particular stock market or shares to which the bonus is linked, do not increase in value over the term, there is no bonus payable at maturity and in this case, you would get back the guaranteed capital sum only, which would typically be the amount you invested.