How do currency options work for hedging FX exposure? When would I use them instead of forward contracts?

Currency options give the holder the right (not obligation) to exchange currencies at a predetermined rate. The key advantage over forwards: you participate in favorable moves while being protected against adverse ones.

When to Use Options vs. Forwards:

Hedging a Foreign Currency Receivable:

Stellar Dynamics, a US exporter, will receive EUR 5 million in 90 days from a German client. Current spot: EUR/USD 1.0850. They're worried the euro will weaken.

Forward hedge: Sell EUR 5 million forward at 90-day rate of 1.0820. Locked in: $5,410,000 regardless of where EUR/USD moves.

Option hedge: Buy a EUR put / USD call with strike 1.0800 for a premium of $0.015 per EUR ($75,000 total).

• If EUR/USD drops to 1.0500: exercise the put, sell EUR at 1.0800. Net proceeds = $5,400,000 - $75,000 = $5,325,000.
• If EUR/USD rises to 1.1200: let the put expire, sell EUR at spot. Net proceeds = $5,600,000 - $75,000 = $5,525,000.

The forward gives certainty ($5,410,000). The option gives a floor ($5,325,000 minimum) while allowing upside ($5,525,000 if EUR strengthens).

When Options Clearly Win:

1. Uncertain cash flows: A contractor bidding on a project in Japanese yen. If they don't win the bid, a forward creates an open position. An option simply expires worthless.
2. Competitive pricing: When you need to quote a price in foreign currency but don't know if the deal will happen.
3. Volatile markets: When FX moves could be large in either direction and the cost of missing a favorable move exceeds the option premium.

When Forwards Clearly Win:

1. Known amounts and dates: Regular trade payables/receivables with predictable timing.
2. Budget certainty required: When the CFO needs an exact number for planning.
3. Tight margins: When the option premium would eat into thin profit margins.

Pricing Factors (Garman-Kohlhagen Model):

Currency options use a modified Black-Scholes model that accounts for two interest rates (domestic and foreign). Higher foreign interest rates increase call value and decrease put value because the forward rate is lower.

Practice currency hedging scenarios in our CFA Level II question bank.