How does a producer lock in a price months before the harvest?
Futures markets exist because producers and consumers need price certainty and are willing to give up upside to get it. Speculators are the counterparty that makes it possible, not the purpose. Here is the machinery, worked all the way through.
The short hedge — a producer
In June, a farmer expects 50,000 bushels of corn at November's harvest. The corn contract is 5,000 bushels, so the exposure is 10 contracts. December corn is quoted at $4.60. The farmer sells 10 December contracts.
The farmer now holds two opposing positions:
- Long physical corn — growing in the field. Gains if prices rise, loses if they fall.
- Short futures — gains if prices fall, loses if they rise.
They move against each other. That is the entire idea: not a bet, an offset.
Case A — November arrives and prices fell
- Local cash corn $4.10; December futures $4.20
- Sell the crop locally: 50,000 × $4.10 = $205,000
- Buy back the futures at $4.20, having sold at $4.60: +$0.40 × 50,000 = +$20,000
- Total $225,000 → $4.50 per bushel effective
Case B — November arrives and prices rose
- Local cash corn $5.30; December futures $5.40
- Sell the crop locally: 50,000 × $5.30 = $265,000
- Buy back the futures at $5.40, having sold at $4.60: −$0.80 × 50,000 = −$40,000
- Total $225,000 → $4.50 per bushel effective
Identical outcomes. That is what a hedge does.
Read Case B honestly
The farmer gave up $40,000 of upside. A hedge is not a free option and it is not insurance in the everyday sense — it is the deliberate purchase of certainty, paid for with the good outcomes. Hedgers who forget this discover it emotionally in the up years, and then unwind their hedges at precisely the wrong moment. The behavioural failure of hedging programmes is far more common than the arithmetic failure.
The long hedge — a consumer
A feedlot that will need 50,000 bushels in November does the exact mirror image: it buys 10 December contracts. If corn rises, its physical purchase costs more and its futures position gains. If corn falls, its purchase is cheap and its futures lose. Same offset, opposite sign.
The airline hedging jet fuel, the chocolate maker hedging cocoa, the utility hedging natural gas, the exporter hedging a currency — all the same structure, differing only in which contract and which direction.
The asymmetry nobody mentions
The physical position generates no cash at all until delivery. The futures leg settles daily. In Case B, the farmer paid out that $40,000 in variation margin across five months, in slices, against a crop that had not been sold and could not be sold yet.
Hedges must be funded, and hedging programmes fail on liquidity far more often than on logic. Several of the most famous corporate derivatives disasters were hedges that were economically sound over their full life and cash-flow fatal along the way. Everything from Unit 2 applies here — this is exactly the funding requirement, arriving inside a strategy designed to reduce risk.
A hedge that outlives one contract also inherits the roll. A refiner fixing twelve months of crude with the front month rolls eleven times, and the roll-yield arithmetic of Unit 3 applies with the hedger's sign: a long hedge rolled in contango pays the spread every month, and a short hedge rolled in backwardation pays it too. The hedge still turns price risk into a known number, but that number now contains the curve, which can change shape after the hedge is placed. Metallgesellschaft's US subsidiary met this in late 1993, rolling long front-month positions against long-dated fixed-price sales as the oil curve moved into contango; the losses reached about $1.5 billion (Culp and Miller, Journal of Applied Corporate Finance, 1995). Hedge tenor is a decision, and the curve prices it.
Try it now
- A year of an agricultural commodity is below. Pick a date roughly five months back — a plausible moment to hedge a crop — and read the price. Measure from there to today.
- Build both columns for a 10-contract hedge: physical proceeds at today's price, and futures profit or loss from the level you struck.
- Confirm the total lands near the price locked in at the start. Then look again at the path between your two points: every dip and rally along it was a cash movement on the futures leg. Estimate the worst of them, and note that both numbers — the locked-in price and the cash it demanded on the way — are the lesson.