What are CDIs?
CDIs are UK securities representing an underlying interest in an overseas security. They are issued on a one-for-one basis so, for example, 500 shares in Mannesmann AG are equivalent to 500 Mannesmann CDIs. Because CDIs are UK securities, you can receive dividends in sterling and can buy or sell CDIs easily in the UK. You should note however that if underlying investments are quoted in other currencies, exchange rate movements may affect the value of your investment in pounds sterling.