Canadian Depositary Receipts (CDRs) represent shares of global companies but are traded in Canadian dollars on a Canadian stock exchange. CDRs are a lot like traditional stocks, they trade on an exchange, flow through dividends and have voting rights. Each CDR is equivalent to owning a fractional interest in the underlying shares. This is represented by the CDR ratio. The CDR ratio is adjusted on a daily basis to provide a notional currency hedge. As the ratio increases or decreases, the number of underlying shares represented by one CDR increases or decreases. So, if the Canadian dollar strengthens, the CDR will represent a larger number of underlying shares. Conversely, if the Canadian dollar weakens, the CDR will represent a smaller number of underlying shares. For example, if on a given day a CDR holder owns 100 CDRs and the CDR ratio is 0.10 on that day, then the CDR holder's interest in the pool of underlying shares is proportionate to beneficially owning 10 of the underlying shares with a notional hedge to Canadian dollars.