ADR (American Depositary Receipt): What It Is and How It Works

An American Depositary Receipt (ADR) is a negotiable certificate issued by a US bank that represents shares of a non-US company, letting Americans buy and sell that stock in US dollars on US markets. The bank holds the foreign shares; the ADR trades like a normal stock and pays dividends in dollars.

What an ADR is, in plain terms

An **American Depositary Receipt (ADR)** is a security issued by a US **depositary bank** that represents shares of a company based outside the United States. Instead of opening a foreign brokerage account, dealing with a foreign currency, and trading in another time zone, a US investor can buy an ADR that trades in **US dollars** on a US market and behaves like an ordinary stock. The bank holds the actual foreign shares abroad and issues the receipts against them. ADRs let US investors reach overseas companies easily, and let those companies tap US capital and visibility. Each receipt corresponds to a set number of underlying shares (see the ratio below). The underlying unit a receipt represents is technically called an **American Depositary Share (ADS)**, while ADR refers to the physical/registered certificate; in everyday use the terms are used interchangeably.

How an ADR is created and traded

A depositary bank (such as **BNY**, formerly BNY Mellon, **Citi**, **JPMorgan**, or **Deutsche Bank**) buys shares of the foreign company in its home market through a local custodian, then issues ADRs in the US backed by those shares. The ADRs then trade on the NYSE, Nasdaq, or the **over-the-counter (OTC)** market. A defining feature is the **ADR ratio**: one ADR can equal a fraction of a share, exactly one share, or several shares. For example, one **Taiwan Semiconductor (TSM)** ADR equals five ordinary shares, while one **ASML** ADS equals a single ordinary share. The ratio is chosen so the ADR trades at a convenient dollar price and stays roughly in line with the home-market stock after currency conversion. Arbitrage between the two markets keeps prices aligned.

Dividends, fees, and taxes

ADRs pay **dividends in US dollars**: the depositary bank collects the dividend abroad, converts it, and passes it to ADR holders. Two costs are specific to ADRs. First, depositaries charge **custody / pass-through fees**, typically about **$0.01 to $0.05 per ADR**, often deducted from dividends or charged periodically. Second, the home country usually applies **dividend withholding tax** before you receive the payment; tax treaties can reduce the rate, and US investors may be able to claim a foreign tax credit. ADR holders still owe normal US taxes on income and capital gains. These frictions are modest but real, and they are the main reason an ADR's net return can differ slightly from owning the home-market share directly.

Why ADRs matter in the chip and photonics supply chain

Many of the most important companies in semiconductors, advanced packaging, and **photonics** are based in Asia and Europe, so ADRs are often the only practical way US investors get exposure to them. The AI and data-center build-out has sharpened this: demand runs through foreign-domiciled links in the chain, from lithography to wafer fabrication to assembly and test, and through optics that move data inside and between data centers. ADRs are the bridge that brings those names — Taiwanese foundries and packaging houses, European equipment makers, Nordic photonics firms — onto US tickers. That makes the ADR mechanism, not just the underlying technology, a practical part of how investors access the AI hardware story. The structure itself is currency- and disclosure-plumbing; the companies behind the receipts are where the supply-chain exposure actually lives.

Examples and what is changing now

Two tracked tickers illustrate the range. **ASX** is the NYSE-listed sponsored ADR of **ASE Technology Holding**, a Taiwan-based leader in semiconductor **assembly, packaging, and test (OSAT)** — a critical, capital-intensive step that turns finished wafers into usable chips, increasingly central as advanced packaging becomes a bottleneck for AI accelerators. **SIVEF** is the OTC ADR of **Sivers Semiconductors**, a Swedish company in **silicon photonics and mmWave/RFIC** technology used in optical networking and 5G. Note the contrast: ASX is an exchange-listed program, while SIVEF trades OTC — a reminder to check an ADR's level and liquidity before treating it like a Big Board stock. On the structural side, depositaries continue to convert unsponsored programs to sponsored ones and expand DR access to new markets, broadening the set of foreign tech names reachable from a US account.

Frequently asked

Is an ADR the same as owning the actual stock?

Economically it is very close: an ADR represents a fixed number of the company's real shares held by a depositary bank, so its price tracks the home-market stock. But you hold a US-issued receipt, not the foreign share directly, and you generally vote and receive dividends through the depositary rather than as a registered local shareholder.

What is the difference between an ADR and an ADS?

An American Depositary Share (ADS) is the actual unit of ownership a receipt represents; the American Depositary Receipt (ADR) is the certificate that evidences one or more ADSs. In everyday language people use 'ADR' for both.

Are ADRs safe, and what are the main risks?

They carry the normal risks of the underlying company plus a few extras: exchange-rate risk if the foreign currency weakens against the dollar, political and economic risk in the home country, and lighter disclosure for OTC (Level 1 and unsponsored) programs. Exchange-listed Level 2 and Level 3 ADRs offer more transparency.

Do ADRs pay dividends?

Yes, when the underlying company pays a dividend. The depositary bank collects it abroad, converts it to US dollars, and passes it to ADR holders, usually after deducting a small pass-through fee and any foreign withholding tax.

Why does one ADR sometimes equal several shares (or a fraction)?

The depositary sets an ADR ratio so the receipt trades at a sensible dollar price. If the home-market share is cheap, one ADR may bundle several shares; if it is expensive, one ADR may represent a fraction of a share. The ratio stays fixed for that program.

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$ASX $SIVEF