Capital-Protected Note
Also known as: Garantiezertifikat, Principal protected note, Capital guarantee certificate
Your money back at the end plus some of the upside — where the protection is a zero-coupon bond and the guarantee is only as good as the issuer.
1 · SnapshotThe one idea to remember
2 · BeginnerWhat is it, really?
A capital-protected note promises two things. At the end of the term you get your money back. And if the market went up, you get part of that rise as well.
It sounds like the market with the risk removed. It is worth seeing how it is built, because then the trade-off is obvious.
The bank takes your 100. It puts most of it into a zero-coupon bond that will be worth 100 at the end. Whatever is left over — say 12 — buys a call option on the index. That is where your upside comes from.
So two things follow. Only a fraction of your money is in the market, so you get a fraction of the rise. And "protected" means the issuer promises to pay; if the issuer fails, the promise fails with it.
- Asset class
- Equity derivatives (structured note)
- Instrument type
- Zero-coupon bond plus a call option
- Traded
- OTC and listed, issuer-quoted
- Typical users
- Retail and private banking 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.
- Marketmatters
- Creditdecides it
- Liquiditymatters
- Fundingbarely applies
- Operationalbarely applies
What decides it here. The protection is a promise by the issuer, so credit decides whether the guarantee is worth anything. The option leg decides how much upside there is above it.
3 · IntermediateHow it works in practice
What the shape of the market decides
- High interest rates: the zero-coupon bond costs less, so more is left for options and the participation rate is generous.
- Low interest rates: the bond eats nearly everything. Structures issued in a zero-rate world had to cap the upside, add barriers or lengthen the term to leave anything for the option.
- High volatility: options cost more, so participation falls. The product is most attractive when rates are high and volatility is low, which is not usually when it is most in demand.
Three costs that do not appear as fees
- Dividends. The option is on the price index. Dividends go to the issuer's hedge, not to you, and over a long term they are the larger part of an equity return.
- The participation rate. Anything below 100% is a permanent share of the upside given up.
- Inflation. Getting 100 back after several years is not getting your money back in any sense that matters.
4 · AdvancedPricing & valuation
The construction, priced
What the symbols mean
- rthe interest rate, per year
- Tmaturity, in years
- pia probability, or a profit, depending on the line above
- Cthe price of a call option
- Sthe price of the underlying today
- Kthe strike: the price written into the contract
Solving for the participation \(\pi\) shows every sensitivity at once. \(\pi\) rises with \(r\), falls with \(\sigma\), and falls with \(f\). Note that \(s_{iss}\) appears in the protection leg: a weaker issuer's own credit spread makes the bond leg cheaper, which funds a better-looking participation rate. The most generous terms on a comparison table frequently belong to the weakest name on it.
Value before maturity
The protection binds only at maturity. Before then the note is a bond plus an option and can trade well below par — a fact that surprises holders who read "capital protected" as "cannot fall". Early exit is at the issuer's bid, in a market where the issuer is usually the only quoting participant.
What to compare it against
Not against the index. Against the replication: a zero-coupon bond of the same issuer and term, plus a listed call. If the note is worth materially less than that pair, the difference is the structuring margin, and it is knowable.
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 Capital-Protected Note 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.