Developed Markets

Developed markets are the countries an index provider classifies as having the most mature and stable economies, with high average incomes, large and liquid stock markets, robust financial regulation, and easy access for foreign investors. They are the counterpart to emerging markets, which are less mature on those measures. The classification is not official: it is made by index providers such as MSCI and FTSE Russell for the purpose of building global stock indexes, and because each provider sets its own criteria, the two do not always place a given country in the same category. In everyday investing use, a "developed markets" fund typically covers developed economies outside the investor's own country, so a U.S. investor uses it to add international developed exposure.

The reason the classification matters is that it shapes what global index funds hold. When a provider decides a country is developed rather than emerging, that country's stocks move into the developed indexes and the funds that track them, which changes the geographic mix of huge amounts of invested money. Providers base the call on a combination of economic development (income per person), market size and liquidity, and market accessibility, meaning how freely foreign investors can buy, sell, and move money in and out. The accessibility criterion is often the sticking point, which is why classifications can differ. South Korea is the standing example: it has long been treated as developed by one major provider and emerging by another, precisely because they weigh market accessibility differently.

For an investor, two practical points follow. First, developed and emerging are complements, not a full menu on their own; a globally diversified stock portfolio typically holds the home market, other developed markets, and some emerging markets, in proportions the investor chooses. Second, the exact country list depends on which provider your fund follows, so two "international developed" funds can hold slightly different countries. Investing in developed markets abroad also carries currency risk: returns are earned in foreign currencies and then translated back, so exchange-rate movements add to or subtract from the result even when the underlying stocks do fine. Developed markets are generally less volatile than emerging markets, but "developed" is a statement about economic maturity and market structure, not a promise of lower risk or higher return.

An index provider evaluates each country against its criteria for income, market size and liquidity, and accessibility, then assigns it to a developed, emerging, or frontier category. Index funds built on those classifications hold the stocks of the countries in their assigned bucket, and they reshuffle if a provider reclassifies a country.

A hypothetical. Suppose an index provider concludes that a country long classified as emerging has deepened its markets and eased restrictions on foreign investors enough to be reclassified as developed. On the reclassification date, that country's large stocks shift out of the provider's emerging-markets index and into its developed-markets index. A U.S. investor holding an international developed fund that tracks this provider would automatically gain exposure to those stocks, and an emerging-markets fund tracking the same provider would lose them, without either investor placing a single trade.

Pros

• Access to large, mature economies outside the home country, which broadens diversification.
• Generally deeper, more liquid, and better-regulated markets than emerging ones.
• Typically less volatile than emerging markets as a group.

Cons

• Investing abroad adds currency risk, since foreign returns must be translated back into the home currency.
• The country list depends on the index provider, so "developed" funds are not all identical.
• "Developed" describes economic maturity, not safety; these markets still fall, sometimes sharply.