Autocall notes are sold to private banking clients, wealth management platforms, and retail investors globally. Despite being widely distributed, their payoff structure is genuinely non-trivial — it is path-dependent, conditional, and involves trade-offs that are not always fully understood at point of sale. This article works through a concrete example to make the mechanics clear.

A Concrete Example

Imagine a five-year autocall note with the following terms, issued by a major bank and linked to the FTSE 100:

  • Initial level: 7,500 (the FTSE 100 level on the trade date)
  • Notional: £50,000
  • Autocall barrier: 100% of initial level = 7,500
  • Autocall coupon: 9% per annum
  • Observation dates: annually, on the anniversary of the trade date (years 1 through 5)
  • Capital protection barrier: 60% of initial level = 4,500 (European — only observed at final maturity)
  • Issue price: 100% (you pay £50,000 and receive the note)

Year 1 Observation Date

On the first anniversary, the closing level of the FTSE 100 is checked:

Scenario A — FTSE closes at 7,900 (above 7,500): The autocall triggers. The note redeems. You receive £50,000 × (1 + 9% × 1 year) = £54,500. Your annualised return is 9%. The investment is over after one year.

Scenario B — FTSE closes at 7,200 (below 7,500): The autocall does not trigger. The note continues to year 2. No coupon is paid this year — the coupon is only paid when the note redeems.

Years 2–4: The Note Continues

If the FTSE has not autocalled by year one, the same process repeats each year. The critical feature is that coupons accumulate: if the note autocalls in year 3, you receive 9% × 3 years = 27% on top of your principal. The "memory" of missed coupons is built into the product — you are compensated for each year the note has been alive, not just the year it redeems.

This accumulation feature is sometimes called a "memory coupon" or "step-up coupon." It creates an asymmetric dynamic: the longer the market stays below the autocall barrier, the larger the eventual coupon when it does autocall — assuming it eventually does.

Year 5 Maturity: The Three Possible Outcomes

If the note reaches year 5 without autocalling, three outcomes are possible at the final observation:

Outcome 1 — FTSE at or above 7,500 (initial level): The note redeems at par plus 9% × 5 = 45% coupon. You receive £72,500.

Outcome 2 — FTSE between 4,500 and 7,500 (below autocall barrier but above capital protection barrier): The note redeems at par only — £50,000. No coupon is paid. You have received no return on your investment over five years but your capital is returned in full.

Outcome 3 — FTSE below 4,500 (below capital protection barrier): The capital protection barrier has been breached. You receive £50,000 × (FTSE final level / 7,500). If the FTSE closes at 4,000 — a fall of 46.7% from the initial level — you receive £50,000 × (4,000/7,500) = £26,667. You have lost £23,333 — nearly half your investment.

The Risk Profile

Autocall investors are effectively:

  • Long a zero-coupon bond (their principal earns a risk-free return implicitly)
  • Short a put option on the FTSE at the capital protection barrier (they bear the downside below 60% at maturity)
  • Long a series of digital options (the conditional coupons paid when the autocall triggers)

The risk the investor is accepting in exchange for the 9% per annum coupon is primarily the barrier risk: if the FTSE falls more than 40% from its initial level and stays there to maturity, the investor suffers proportionate capital losses. A fall of 50% means a 50% loss of principal — worse than simply holding the index, because at least the index would have paid dividends in the interim.

Issuer Credit Risk

An autocall note is a debt obligation of the issuing bank — not a product backed by physical shares or a ring-fenced pool of assets. If the issuing bank becomes insolvent during the life of the note, the investor is an unsecured creditor and may receive less than their investment regardless of where the FTSE is. This is a meaningful risk for notes with five to seven year terms and should be considered alongside the equity risk.

Secondary Market Liquidity

Autocall notes can generally be sold back to the issuing bank before maturity at the current mark-to-market value, but the bid/offer spread is typically 1–3% of notional. In stressed markets — exactly when investors most want to exit — the secondary market can widen considerably or become temporarily unavailable. Investors should treat autocall notes as a five-year commitment and ensure the invested capital is genuinely surplus to liquidity needs.

How the Note's Value Changes Over Time

Immediately after issuance, the note will typically trade at a modest discount to par because the issuer's margin and distribution costs have been embedded. As the first observation date approaches and the FTSE is close to the autocall barrier, the note's value approaches the redemption value plus accrued coupon. If the market falls sharply during the note's life, the value can fall significantly below par — reflecting the increased probability that the capital protection barrier will be breached at maturity.

Key Terms

Autocall Trigger
The level of the underlying (typically 100% of the initial level) that, if reached or exceeded on an observation date, causes the note to redeem early at par plus accumulated coupon.
Memory Coupon
The feature whereby autocall coupons accumulate for each year the note has been alive — so an autocall in year 3 pays 3× the annual coupon rate, compensating the investor for the years it did not redeem.
Capital Protection Barrier
The level (typically 50–70% of initial) below which the investor loses capital proportionally at maturity. Observed only at the final maturity date in most standard European barrier structures.
European Barrier
A barrier that is only observed at a single specified date (typically maturity). Contrast with an American barrier, observed continuously — a European barrier is more favourable to the investor as intra-period dips below the barrier don't trigger capital loss.
Issuer Credit Risk
The risk that the bank issuing the structured note defaults during the note's life. The investor is an unsecured creditor and may recover less than par regardless of the underlying equity performance.
Step-Down Autocall
A variant where the autocall trigger level decreases over time — for example, 100% in year 1, 95% in year 2, 90% in year 3 — making it progressively easier to autocall even if the underlying has fallen.