ADRs (American depositary receipts)

Definition

An ADR is a US-listed certificate issued by a depositary bank representing a fixed number of a foreign company’s home-market shares — US-dollar trading, US settlement, and US-style dividend payment wrapped around a foreign equity. The holder’s economics are the foreign stock’s return PLUS the currency move MINUS depositary fees: an ADR position is always simultaneously an equity position and an FX position.

How it works / structure

• Mechanics: the depositary holds the underlying shares with a local custodian; each ADR represents a set ratio (e.g. 1 ADR = 2 ordinary shares — the ratio matters when comparing prices across listings); dividends are converted to USD by the depositary, minus a fee, often with foreign withholding tax deducted at source.
• Sponsorship levels (engine-relevant facts): Level I (OTC-traded, minimal disclosure), Levels II/III (exchange-listed, SEC-reporting), and unsponsored programs (created without issuer involvement — disclosure can be thin). Level determines data quality and liquidity.
• Arbitrage anchor: ADRs are convertible into ordinaries, so ADR price ≈ home price × FX × ratio; deviations are bounded by conversion friction — persistent premia/discounts appear when conversion is restricted (capital controls).
• Sessions gap: the home market and the US session mostly do not overlap for Asia/Europe names — the ADR trades for hours on US flow while the underlying sleeps; overnight home- market moves gap the ADR at the US open (ms-sessions-auctions).

When it applies

US-account access to foreign names with US settlement and disclosure (ext-international-equities covers the market-level view); FX-aware single-name theses (the currency leg can dominate — a correct equity call in a devaluing currency loses in USD, ext-fx); dual-listing relative-value observation.

Risk profile & failure modes

• The invisible FX leg: holders routinely attribute ADR moves to the company when the currency did it; the platform decomposes ADR returns into local + FX legs in attribution.
• Withholding drag: foreign dividend withholding (often 15-30%) reduces realized yield vs the headline; treaty rates and account type change the net (acct-account-types adjacency; facts, never advice).
• Termination risk: depositary programs can terminate (delistings, sanctions — 2022 Russian ADRs are the canonical episode), leaving holders with conversion mechanics under duress.
• Session mispricing lore: “the ADR predicts the home open” and its reverse are tested-to-mixed microstructure claims — treated as replay questions, not facts.

Evidence & limits

Structure and mechanics are SEC-documented. The law-of-one-price relationship (ADR vs ordinary × FX) and its friction-bounded deviations are among the cleanest documented arbitrage relationships in equities; deviations concentrate where conversion is restricted. Fee schedules and withholding rates are program- and treaty-specific facts, checked per name.

Falsifiable-thesis examples

Illustrations only, not signals:

• “X’s ADR discount to its ordinary (currency-adjusted) will close to under 1% within a month of the announced capital- control relaxation” — falsified by the spread series.
• “Over the next quarter, more than half of X-ADR’s USD return variance will be attributable to the EUR/USD leg” — falsified by the decomposition.

Cross-references

• Underlying exposure family: ext-international-equities, instrument-common-stock
• The second leg: ext-fx
• Payment mechanics: event-dividends-ex-dates, ms-corporate-actions
• Session structure: ms-sessions-auctions