How dual-listing a security works
The most common way a company dual-lists on U.S. stock market exchanges is through an American depositary receipt (ADR). ADRs hold the foreign shares in a trust account and grant U.S. investors the same rights and upside potential.
Reasons for dual-listing a security
The main reason companies dual-list their securities is that it makes it easier to raise capital. If a foreign business can only issue new stock and raise money on its local exchange, it's losing out on the millions of investors in the U.S. and other developed markets. Businesses that are based in the U.S. will often list in countries where they do a lot of business in order to allow employees and customers in those countries easier access to the stock.Additionally, trading on U.S. markets increases the daily volume of shares traded. This makes the stock price more reliable. The more people who are trading the stock, the less likely it is to be mispriced.
The final advantage is more trading time. If a stock is listed on exchanges in different time zones, it will be tradable throughout the day instead of just while one of the exchanges is open. However, this is unimportant for many businesses because most exchanges allow some form of after-hours trading.
Examples of dual-listed companiesHere are a few examples of dual-listed companies:
- Tencent Holdings ADR (TCEHY -0.85%) trades mainly on the Hong Kong stock exchange and also in the U.S. via an ADR. Tencent is the biggest dual-listed stock by market capitalization.
- Rio Tinto Group (RIO -2.96%) trades in the U.S., plus the Australian and UK stock exchanges.
- Nestle (NSRGY 0.75%) is based in Switzerland and trades on an exchange there, as well as in the U.S. via an ADR.
- Thompson Reuters (TRI 0.27%) is listed on both the NYSE and its home exchange in Canada.
Pros and cons of dual-listingThe pros, as outlined above, are access to capital with new stock offerings and more stock trading volume.The cons are mostly related to cost. Listing on multiple exchanges comes at a price. The custodian bank holding the trust when a company goes the ADR route has to be paid, and the entity needs to be structured and updated by lawyers. If the business doesn't dual-list via an ADR, there will be massive costs to state financials under SEC regulations and comply with all other exchange rules.Additionally, when the company is taking advantage of a stock trading on multiple exchanges by issuing more shares, the management team will need to travel to those locales. In the U.S., it is customary to do a road show presenting to institutional investors to drum up interest in the stock offering. Foreign companies may find it beneficial to hold multiple shareholder meetings as well.All in all, the cons of dual-listing are likely immaterial to multinational corporations looking to raise hundreds of millions or even billions of dollars.
How does dual-listing affect stock price?On a micro level, dual-listing does not affect stock prices. The prices on the different exchanges will be the same when you account for currency differences and transaction costs.
Over time, having a more liquid stock and the ability to raise more capital for growth could help the stock price go up — but that would only occur if the fundamentals of the business were also getting better.