How to index supply contracts to a benchmark

Most bulk olive oil is still sold spot: a phone call, a price, a tanker. That works until the market moves 30% in a quarter — as it has done repeatedly — and one side of every fixed-price agreement is suddenly losing money. Indexed contracts solve this by replacing the fixed number with a public formula: Olea Price ± premium. The price adjusts with the market; the relationship, volumes and quality terms stay put.

The formula, with today's numbers

Say a bottler agrees to buy from a cooperative at OLEA-EVOO-ES + 0.15 EUR/kg for a premium-quality lot. With the index at 3.573 EUR/kg today, this month's delivery would invoice at 3.723 EUR/kg. If the index falls next month, the invoice falls with it — same premium, no renegotiation.

The premium (or discount) is where the negotiation lives. It reflects quality above or below the benchmark's reference grade, logistics, payment terms and the value of the relationship itself. Premiums are typically fixed for the life of the contract and reviewed at renewal — the volatile part, the flat price, is delegated to the index.

Why both sides sign

For the bottler, indexation removes the worst procurement outcome: being locked into an above-market fixed price while competitors buy cheaper. It also makes hedging and pass-through pricing to retailers mechanical rather than a quarterly fight.

For the cooperative, it guarantees that a rally is never sold away: if the market reprices 40% higher mid-contract, so does every remaining delivery. It converts the annual all-or-nothing pricing decision into a fair average over the campaign.

What both sides give up is the lottery ticket — the chance of having fixed at the extreme. In a market with the volatility shown in our 20-year history, most professional operators consider that a good trade.

Clauses that make or break the contract

Fixing window. Specify exactly which index values price each delivery. The most common choice is the calendar-month average of the daily prints; spot fixing on the delivery date and weekly averages are the alternatives. Averages smooth noise and are harder to game around a single date.

Reference index and grade. Name the index code (e.g. OLEA-EVOO-ES), the unit (EUR/kg at origin) and the quality it references. A lampante contract indexed to an EVOO benchmark imports the quality spread's volatility into the deal.

Fallbacks. Define what happens if the index is flagged stale or is not published: typically the last published value for up to N days, then an alternative reference or renegotiation. The Olea Price's public stale flag exists precisely so this clause is objective.

Caps, floors and collars. Optional bands that limit how far the invoice price can travel — a common compromise for a first indexed contract.

Practical notes

Auditability is the whole point: both parties should be able to verify every fixing independently. The Olea Price publishes daily values computed under a public, versioned methodology, and the full series is retrievable programmatically through the API for reconciliation.

This guide is general information for market participants, not legal or financial advice. Have any indexation clause reviewed by your own counsel before signing.