BDRs vs ADRs

A depository receipt is a financial wrapper. The wrapper trades on one exchange in one currency; the underlying share lives somewhere else and is held by a custodian bank. When you buy the receipt, you do not buy the foreign share directly. You buy a bank-issued claim that mirrors one foreign share (or a fixed fraction or multiple of one). The bank earns a custody fee for keeping the underlying parked, processing dividend conversions, and handling corporate actions. The receipt is the wrapper; the share is the underlying. Wrappers exist because cross-border listings are operationally complex: different regulators, different settlement systems, different currencies, different tax regimes. The receipt collapses that complexity into a single ticker an ordinary retail account can buy.

BDRs are Brazilian Depository Receipts. They trade on B3 in São Paulo, settle in BRL, and wrap foreign-listed shares. The most common BDRs are Level I unsponsored receipts that mirror US-listed companies: AAPL34 wraps Apple, MSFT34 wraps Microsoft, MELI34 wraps MercadoLibre. The Brazilian retail investor buys the BDR through a Brazilian broker, settles in BRL, receives BRL-converted dividends, and pays Brazilian capital-gains tax. The custodian bank holds the underlying NASDAQ shares. From the retail account's perspective the experience is local; underneath, the share lives offshore.

ADRs are American Depository Receipts. They trade on NYSE or NASDAQ in USD, and wrap foreign-listed shares whose primary listing is somewhere else. The most common ADRs in a LATAM context are receipts for Brazilian companies whose primary listing is on B3: ITUB wraps Itaú Unibanco's preferred shares, VALE wraps Vale's common shares, PBR.A wraps Petrobras's preferred shares. The US-or-international retail investor buys the ADR through a US broker, settles in USD, receives USD dividends, and pays US capital-gains tax. The depository bank holds the underlying B3 shares. The geographies are inverted versus a BDR but the wrapper mechanics are otherwise symmetric.

Brazilian retail uses BDRs heavily. Six hundred or so foreign stocks are accessible via B3 in BRL through any Brazilian broker, which collapses the cost-and-complexity of foreign-broker accounts down to a few clicks. Mexican retail uses the SIC market at BMV for the same purpose with a different mechanism: SIC is a cross-listing layer, not a wrapper, and the shares are the same NASDAQ or NYSE shares settled through the Mexican clearing system. Chilean, Peruvian, and Colombian retail typically need an international broker to reach US-listed names because no major local-wrapper market sits between them and the foreign exchange. The choice of access path is not the choice of company; it is a choice about which currency settles, which broker handles the trade, which tax regime applies, and which liquidity profile the order books actually carry.

Four threads pull this together for the LATAM investor. First, depository receipts trade on real exchanges with real matching engines; the wrapper does not bypass the venue mechanics, it adds a custody layer on top of them, and the same liquidity-and-spread questions apply. Second, the underlying claim behind every BDR or ADR is still fractional ownership of a real business; the receipt does not change what the company is, only the wrapper around it. Third, single-name wrappers are not the only way to reach foreign exposure: ETFs that hold diversified baskets of foreign stocks are an alternative wrapper, often with deeper liquidity and lower per-trade complexity, especially for the broad-market case where the investor wants exposure rather than a specific name. Fourth, where any of these wrappers actually fits in a portfolio is downstream from the wrapper choice itself: it is an asset-allocation question about which buckets hold what fraction of household wealth, and the wrapper only changes the access mechanics, not the role the underlying plays in the bucket mix.