Depository receipts (also known as American Depository receipts or ADRs ) are shares of non-US corporations traded in the U.S (and denominated in dollars), while the underlying shares trade in the domestic market of the issuer. A depository receipt represent a specific number of underlying shares remaining on deposit in a so called custodian bank in the issuer's home market. A new DR can be created by depositing the required number of shares in the custodial account in the market. The dividends and other payments will be converted by this bank into US dollars and provided to the holders in the U.S. The process can simply be reversed by cancelling or redeeming the DR. In this way, an underlying stock can easily be transformed into a DR and vice versa.
DR provides, financial market integration, increases liquidity and hence better price discovery. For investors, DR's provide better diversification and access to other markets without going through the hurdle of currency conversion. The currency risk is managed by the custodian bank, who is better equipped to manage the risk.
However when trading in two different markets, if the financial market integration is weak, leads to cross-market premium (or discount). Cross market premium reflects the deviation between the home market price of the stock and its price in the exchange where DR is being traded. It can be computed by converting the local currency price of the underlying stock in dollar prices, multiplying this by the number of underlying shares on DR represents, and then dividing their value by the DR price.
When the domestic market and the host market is fully integrated, transaction cost are zero and the two markets close at the same time, arbitrage should be instantaneous and costless. The market would correct the prices in the two market instantaneously by trading the stocks and the DRs. In reality however, there does not exist instantaneous and costless arbitrage. There are transaction cost involved in converting the underlying stocks to the DRs like brokers fee and transaction fee to purchase the underlying stock or the DRs.Additional transaction cost might be the cost of opening a bank account in the host country, or a tax that need to be paid for the transfer of funds back to the domestic market. Further since the settlement in equity market typically takes place a number of days after the transaction, there is also foreign exchange risk unless the stock traded is matched with a forward exchange rate contract. In turn, these transactions cost can generate a no-arbitrage band within which price deviations are not large enough to induce arbitrage. Higher transaction costs induce the widening of the no-arbitrage band and thus, weaker integration.
A recent study on 76 stocks (out of 133 DR's that traded in NYSE of NASDAQ), has shown that the average premium is close to zero in all cases. For the pooled data, the mean premium is 0.15%, with a standard deviation of 1.65.
Since Asian economy is growing with large number of investors within the region, there is a clear opportunity for DR's in the Asian market. Singapore can use its existing financial system to lead the financial market integration in the region. However there are many challenges to fulfill its ambition.The primary challenge for Singapore is to integrate the financial market in the Asia Pacific region along with developing necessary infrastructure required for DR issuance and trading. To lead the market, Singapore has to develop strong regulatory mechanism yet to allow the market to work without government interruption. Providing fungibility is also one more concern for the Singapore exchange.
Leveraging on its previous experience in developing energy market in the region, and its favorable attitude towards business, Singapore can definitely become the Asian Gateway for international issues and for international investors. It will benefit Singapore as well as other Asian countries.
Ref:
Wallstreet journal Sep 15th
International Financial Integration through law of One Price,