The difference between sponsored and unsponsored ADRs comes down to who set up the program. A sponsored American Depositary Receipt exists because the foreign company signed a formal agreement with a single U.S. depositary bank; an unsponsored ADR exists because a depositary bank decided on its own to create one, without any involvement from the foreign company. That single structural fact drives everything you care about as an investor: where the ADR trades, how much financial disclosure you receive, whether you can vote your shares, and how much of the depositary bank’s fees come out of your pocket.
Who Sets Up the Program
A sponsored ADR program begins when a foreign company decides it wants access to U.S. capital markets and contracts with one depositary bank to run the program. The bank holds the underlying foreign shares in custody and issues the corresponding ADRs to American investors. Because the company initiated the arrangement, it typically absorbs part of the administrative cost and controls how investor communications are handled.
Unsponsored ADRs work in reverse. A depositary bank identifies U.S. demand for a foreign stock and creates the ADR program by itself. The foreign company has no formal agreement with the bank and provides no financial or informational support. Before 2008, unsponsored programs were relatively uncommon. That changed when the SEC amended Rule 12g3-2(b) and the related Form F-6 process, making it substantially easier for depositary banks to establish unsponsored facilities. The SEC estimated the amendments would generate roughly 350 additional Form F-6 filings per year.1U.S. Securities and Exchange Commission. Exchange Act Rule 12g3-2(b) Final Rule
Because the bank in an unsponsored program has no direct line to the issuer, it only needs a “reasonable, good faith belief” that the foreign company still maintains its 12g3-2(b) exemption. The bank checks public filings and makes a judgment call rather than getting confirmations from the company.1U.S. Securities and Exchange Commission. Exchange Act Rule 12g3-2(b) Final Rule
Where Each Type Trades
Sponsored programs come in three tiers, and the tier determines the trading venue. Level I sponsored ADRs and all unsponsored ADRs trade only over the counter, on platforms like the OTC Pink Sheets or the OTCQB Venture Market. Level II and Level III sponsored ADRs list on the NYSE or Nasdaq.2U.S. Securities and Exchange Commission. Investor Bulletin: American Depositary Receipts
Venue matters for two reasons. First, OTC platforms tend to carry thinner volume and wider bid-ask spreads than the major exchanges, so larger positions cost more to enter and exit. Second, exchange listing brings additional scrutiny from the exchange itself, which sets its own minimums for share price, market capitalization, and financial condition on top of what the SEC requires.
There is also a fragmentation problem unique to unsponsored programs. Multiple depositary banks can each create their own unsponsored ADR for the same foreign company, splitting trading across several tickers. That dilutes liquidity in each individual ADR and tends to widen spreads. A sponsored program has one depositary bank and one ADR, so all the volume concentrates in a single security.
What Disclosure You Actually Get
The sponsored tiers scale directly with the issuer’s regulatory commitment.
Level I
The foreign company registers the ADRs on Form F-6 but does not register the underlying shares with the SEC. It qualifies by maintaining an exemption under Rule 12g3-2(b), which requires it to publish in English on its website or through an electronic system the material information it makes public in its home country. At minimum, that includes annual reports with financial statements, interim financial reports, press releases, and communications to shareholders.3eCFR. 17 CFR 240.12g3-2 – Exemptions for American Depositary Receipts and Certain Foreign Securities Level I cannot be used to raise new capital in the U.S.2U.S. Securities and Exchange Commission. Investor Bulletin: American Depositary Receipts
Level II
Level II gets the ADR onto a major U.S. exchange in exchange for full SEC registration and annual filing of Form 20-F, a comprehensive report on business activities and financial results.2U.S. Securities and Exchange Commission. Investor Bulletin: American Depositary Receipts Financial statements on Form 20-F must use either U.S. GAAP or IFRS as issued by the IASB, and IFRS filers are not required to reconcile to GAAP.4U.S. Securities and Exchange Commission. Financial Reporting Manual – Topic 6: Foreign Private Issuers Level II still cannot be used to raise capital.
Level III
Level III carries the same exchange listing and Form 20-F obligations as Level II, and adds the ability to issue new shares and raise capital directly from U.S. investors. That requires a separate registration statement on Form F-1, F-3, or F-4, with a prospectus disclosing use of proceeds, risk factors, dilution, and distribution plans.2U.S. Securities and Exchange Commission. Investor Bulletin: American Depositary Receipts It is the most transparent ADR structure and reads closest to a domestic U.S. stock from a disclosure standpoint.
Unsponsored
Unsponsored ADRs sit alongside Level I at the bottom of the ladder. They rely on the same 12g3-2(b) exemption and trade only OTC.2U.S. Securities and Exchange Commission. Investor Bulletin: American Depositary Receipts The foreign company’s home-country disclosures do not need to follow U.S. GAAP or IFRS, and whatever information is available may not be in English unless the issuer publishes it that way on its own. Comparing an unsponsored ADR’s financials to a domestic U.S. stock is meaningfully harder as a result.
Voting Rights
Sponsored ADR holders generally keep the ability to vote on corporate matters. The depositary bank is contractually obligated under the deposit agreement to distribute proxy materials, collect voting instructions, and vote the underlying shares accordingly. You aren’t a registered shareholder of the foreign company; the bank votes on your behalf based on what you tell it.
Unsponsored ADR holders typically have no voting rights. Without a formal agreement between the issuer and the bank, no mechanism requires anyone to forward proxy materials or solicit your vote. You own an economic interest in the stock’s performance and nothing more. For a passive holder focused on price and dividends, that gap may not matter. For anyone who cares about executive pay, mergers, or board elections, it does.
Fees and Who Pays Them
Both types of ADR carry custodial service fees, sometimes called pass-through fees, that compensate the depositary bank for holding the underlying shares. These generally run from $0.01 to $0.05 per ADR and are most often deducted from dividend payments before you receive them. They can also be assessed when no dividend is paid, which surprises investors who assume a non-dividend-paying ADR is free to hold.5Fidelity. Understanding American Depositary Receipts
The real cost difference is who subsidizes those fees. In a sponsored program, the foreign company often absorbs part or all of the custodial and administrative charges as the price of maintaining a U.S. presence. In an unsponsored program, every fee flows directly to you. The depositary bank may also charge additional fees for services like applying reduced tax treaty withholding rates, which requires the bank to file paperwork with the foreign tax authority. Currency conversion on dividends carries a spread on top of all of this, which is rarely disclosed with precision.
What Happens if the Program Ends
Any ADR program can be terminated. In a sponsored program, either the bank or the foreign issuer can end it; in an unsponsored program, the bank can end it on its own. When that happens, the depositary bank issues a notice giving holders a window to surrender their ADRs for the underlying foreign shares. Taking delivery means paying a cancellation fee (generally up to $0.05 per ADR), possibly a cable or transfer charge, and holding the shares in a brokerage account that can accept foreign securities. Not every U.S. broker offers that.
If you miss the surrender window, the bank may sell the underlying shares on the foreign market and distribute the cash proceeds, minus sale costs, applicable taxes, and the cancellation fee. That forced sale happens at whatever price the market offers at the time.
Termination notices matter more with unsponsored programs. The foreign company has no obligation to alert you separately because it has no relationship with you or the bank; the notice comes from the depositary bank alone, and if you aren’t watching closely, the deadline can pass before you act.