Non-Deliverable Forwards and Restricted Currency Pairs

A non-deliverable forward (NDF) is a cash-settled forward contract on a currency that cannot be freely traded or delivered offshore. NDFs allow traders and corporates to hedge exposure to restricted currencies like the Indian rupee (USD/INR), Brazilian real (USD/BRL), and South Korean won (USD/KRW) without violating capital controls or ownership restrictions. Settlement happens in USD, not the restricted currency itself—a workaround that has become the global standard for emerging-market forex risk.

Why Restricted Currencies Require NDFs

Many emerging-market governments impose capital controls to prevent currency outflows, protect foreign-exchange reserves, or manage inflation and external debt. These controls limit who can convert the local currency to USD and in what amounts.

For example:

• India restricts rupee convertibility on the capital account. Non-residents cannot freely buy large quantities of rupees and convert them back without approval.
• Brazil limits offshore repatriation of real profits and restricts foreign-currency derivative positions for some investors.
• China does not allow physical delivery of onshore yuan (CNY) to overseas accounts; only the offshore yuan (CNH) circulates internationally, and that is also managed.

Without NDFs, a US company with an Indian subsidiary could not hedge its rupee earnings back to dollars—the rupee cannot be freely exported and converted. An NDF solves this: it is a cash-settled contract, requiring no actual movement of rupees out of India.

Mechanics of Settlement

An NDF contract specifies:

• Base currency and counter currency (e.g., USD/INR)
• NDF rate (e.g., 83.50 rupees per dollar, agreed today)
• Maturity (e.g., 6 months)
• Notional amount (e.g., $1 million)

At maturity, the parties do not exchange the currencies. Instead, they compare the agreed NDF rate to the spot rate on settlement day. Whoever is out-of-the-money pays the difference to the in-the-money party, in USD.

Example: USD/INR NDF

• Today: NDF rate agreed at 83.50
• Notional: $1 million = 83.5 million rupees (conceptually)
• At maturity (6 months): spot rate is 84.00
• Settlement: Since 84.00 is weaker for the USD (more rupees needed per dollar), the USD-long party is out-of-the-money. They pay the difference: (84.00 − 83.50) × 1,000,000 = $500,000 (paid in USD)

If the spot rate had moved to 83.00 instead, the USD-long party would receive: (83.50 − 83.00) × 1,000,000 = $500,000.

No rupees are ever exchanged. The contract is purely a rate-lock on USD, paid in cash.

NDF vs. Onshore Forward

Most currency pairs have deliverable forwards—the seller can actually deliver the currency at maturity. For example, a EUR/USD forward is deliverable: you can demand actual euros and deliver dollars, or vice versa.

Restricted currencies have two rates:

1. Onshore forward (CNY, INR, BRL onshore): A forward contract traded on domestic exchanges, often with strict rules about who can participate (usually banks and large corporates, not retail traders).
2. Offshore NDF (CNH, offshore INR, offshore BRL): A non-deliverable forward traded in international markets (London, Singapore, Hong Kong) with no physical delivery requirement.

The onshore rate is typically lower volatility and tighter bid-ask spread, because it can be arbitraged against deliverable spot transactions within the country. The NDF rate is wider and more volatile because it reflects purely offshore demand and supply, with no risk-free arbitrage backstop.

The Onshore–Offshore Basis

Because the two markets operate independently (offshore traders cannot freely convert to onshore rates), the NDF rate and onshore forward often diverge. This difference is called the onshore–offshore basis.

A widening basis can signal shifting expectations about capital-account liberalization, or simply a liquidity crunch in one market. Companies deciding whether to hedge onshore or offshore will choose based on the basis and their counterparty credit quality.

Common NDF Pairs

The most liquid NDFs are:

• USD/INR: Indian rupee; very liquid, 1–2 pip spreads on major tenors
• USD/BRL: Brazilian real; highly liquid
• USD/KRW: South Korean won; actively traded despite South Korea’s liberalization efforts
• USD/TWD: Taiwan dollar; restricted, even though Taiwan is developed
• USD/CNH: Offshore Chinese yuan; the primary vehicle for offshore yuan exposure
• USD/THB: Thai baht; moderately liquid NDF market

Emerging-market corporates, hedge funds, and investors use these to hedge earnings, lock in funding costs, and speculate on currency moves without violating local regulations.

Pricing and Interest-Rate Parity

Like deliverable forwards, NDFs should theoretically obey interest-rate parity: the forward rate reflects the interest-rate differential between the two countries.

NDF rate ≈ spot rate × (1 + domestic interest rate) / (1 + foreign interest rate)

However, NDFs often trade at a discount or premium to this theoretical rate because:

• Liquidity premium: If onshore rates are tightly controlled and offshore NDFs are the only way to hedge, offshore investors pay a premium.
• Credit-risk premium: An NDF is an unsecured obligation; counterparty risk drives pricing.
• Capital-control expectations: If investors expect capital controls to loosen, they demand a premium to lock in the current NDF rate before it aligns with spot.

During crises (e.g., emerging-market currency crashes), NDF basis can blow out to 5–10% annualized, reflecting panic selling and counterparty-risk concerns.

Regulatory Status

NDFs are legal and standardized. The International Swaps and Derivatives Association (ISDA) publishes a standard master agreement. Major banks, investment banks, and some brokers trade NDFs. Retail traders and some smaller corporates may not have direct access to NDF markets and instead use leveraged NDF products offered by brokers.

However, using an NDF to circumvent a country’s capital controls can be illegal for residents of that country. A Brazilian resident using an offshore USD/BRL NDF to move money out of Brazil may violate Brazilian law. Institutional investors and multinational corporates typically have exemptions or licenses; retail traders do not.

See also