An International Depository Receipt (IDR) is a negotiable certificate issued by a bank that represents ownership of shares in a foreign company, allowing you to invest in that company through your domestic stock exchange without directly accessing a foreign market. The bank buys the underlying shares, holds them in trust, and issues receipts against them that trade locally. You get dividends, bonus shares, and other shareholder benefits just as if you held the foreign shares outright.
The Nasdaq Financial Glossary defines it plainly: an IDR is a receipt issued by a bank as evidence of ownership of one or more shares of the underlying stock of a foreign corporation that the bank holds in trust. The key advantage is that the foreign company does not have to comply with all the listing requirements of every country where its shares trade.
The IDR is an umbrella category. The specific version depends on where the receipt trades.
The ratio between receipts and underlying shares is set when the program launches and stays constant. One receipt might represent one share, two shares, or a fraction of a share. The price of each receipt adjusts accordingly to reflect the underlying share price after currency conversion.
When price differences open up between the receipt price and the converted underlying share price, arbitrageurs close the gap. Over time, the two prices stay tightly aligned.
Without IDRs, you would need a foreign brokerage account, foreign currency, and knowledge of foreign tax and settlement rules to invest in, say, a Korean technology company. With an ADR, you buy through your existing US broker in dollars and receive dividends in dollars.
For the issuing company, IDRs open access to investor pools it could not reach without meeting the full listing requirements of every foreign exchange. The company files a simplified disclosure rather than a complete domestic registration, significantly reducing cost and complexity.
A sponsored IDR program is initiated by the foreign company and backed by a formal agreement with a depository bank. The company files disclosure documents and engages directly with investors. An unsponsored program is created by a third-party bank without the issuing company's involvement.
Unsponsored programs offer less transparency because the company has not chosen to participate. Multiple banks can issue unsponsored receipts on the same stock, creating multiple classes of receipts with different fees and liquidity.