Currency risk in emerging markets

Two return streams, one position

Own anything priced in another currency and you own two exposures: the asset and the currency. A market can rise 20% in local terms while its currency falls 25% against the dollar, leaving a dollar-based investor with a loss. Over long stretches, currency movement has explained a large share of the gap between emerging markets' local returns and what US investors actually received.

Frontier currencies amplify this: thinner FX markets, larger devaluations, and sometimes parallel exchange rates — an official rate and a street rate that differ meaningfully.

Pegs, and what breaks

Several covered markets peg their currency to the dollar — most of the Gulf, for instance. A credible peg removes day-to-day currency noise, but a peg is a policy promise, not a law of nature: when pegs break, they break abruptly and the repricing is violent. The risk is rare but not zero, and it clusters exactly when everything else is going wrong.

Capital controls are the quieter cousin: rules that limit converting or repatriating money. They can appear during crises — precisely when a foreign investor most wants out.

Hedged funds and their cost

Currency-hedged EM funds exist but are rarer than developed-market equivalents, because hedging EM currencies is expensive — the interest-rate differential is the cost, and for high-rate currencies it can eat the return being protected. Most EM investors simply hold the currency risk knowingly; the point is to hold it knowingly.

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