Dual Currency Deposit
Also known as: DCD, Dual currency investment
A deposit with a headline rate several times the going one, which the bank may repay in a currency you did not want.
1 · SnapshotThe one idea to remember
2 · BeginnerWhat is it, really?
You place money on deposit for a month. The rate is far above what a normal deposit pays. That difference is the whole point, so it is worth knowing where it comes from.
You have agreed that the bank can repay you in a second currency, at a rate fixed today. The bank will choose whichever is cheaper for it. So you get your own currency back when the exchange rate did not move much, and you get the other currency when it moved against you.
Put plainly: you keep the high interest either way, and you accept the currency you least want at the moment you least want it.
The extra interest is the price of an option you have sold. It is not a better deposit. It is a deposit plus a bet, priced as one number.
- Asset class
- Foreign exchange (structured deposit)
- Instrument type
- Deposit with an embedded sold FX option
- Traded
- OTC, bank to client
- Typical users
- Private banking and corporate treasury clients
Which risks decide the outcome
Not how risky this is, and not a rating — there is deliberately no total. It says which of five failure modes drives what happens here, in the same order on all 129 products so they can be compared. This publication's own reading; see the notice below.
- Marketdecides it
- Creditmatters
- Liquiditymatters
- Fundingbarely applies
- Operationalbarely applies
What decides it here. It is a deposit with a sold option attached, so the exchange rate decides the outcome. The bank holding the deposit is the second question, and a smaller one.
3 · IntermediateHow it works in practice
The three numbers on the term sheet
- The strike: the exchange rate at which conversion happens. The further from spot, the lower the enhanced rate.
- The tenor: usually one week to three months. Short, which keeps the premium small in absolute terms and the annualised headline large.
- The enhanced rate: the deposit rate plus the option premium, expressed per annum. Annualising a one-week premium is what makes the number look striking.
What you are actually short
A covered call on your own currency, or equivalently a sold put on the alternative one. If the alternative currency is one you genuinely want to hold — a company that has bills to pay in it, say — the structure is defensible and the conversion is not a loss. If it is not, then conversion is the loss, and the interest received rarely covers it.
4 · AdvancedPricing & valuation
Valuation
The fair enhanced rate is the deposit rate plus the annualised premium of the embedded option:
What the symbols mean
- rthe interest rate, per year
- nhow many periods, or how many things
- hthe hedge ratio
- Pa price, or a present value
- ta point in time
- Kthe strike: the price written into the contract
Everything the client is paid comes from \(\sigma\). A structure that looks generous is quoting high implied volatility, and the client is the seller of it. Comparing two banks' offers on the headline rate alone compares two different implied volatilities without saying so.
Why it is a retail product and not an institutional one
An institution wanting this exposure sells the option directly and sees the premium as premium. The deposit wrapper exists to present the same position as a yield, which changes how it is booked, how it is taxed in some jurisdictions, and — more to the point — how it is understood.
The one legitimate use
A treasury with a known future payable in the alternative currency is genuinely indifferent to conversion at the strike, and for it the enhanced rate is a real improvement. That is the case the product was designed for. Everything else is a directional FX position sold as a deposit.
The formulas above are standard textbook formulations, simplified for teaching. They explain the mechanism — they are not a valuation tool, and they will not reproduce a dealer’s price.
5 · Desk notesHow practitioners think about it
Now say it back
Close the page and give Dual Currency Deposit in four sentences. It takes a minute and it is the only way to find out whether reading it was enough.
- Who wants what — two parties wanted opposite things badly enough to write it down.
- What the contract obliges, and when — not the payoff; the obligation.
- Where the money comes from — name the source, or you have described a hope.
- What makes it lose — the ordinary way, not the dramatic one.