Commodity Futures in Practice: Contracts, Hedgers & Delivery

You already know what a futures contract is: a binding agreement to buy or sell something at a set price on a set date, traded on an exchange, margined daily and marked-to-market so nobody runs off with the gains. You learned all of that on financial futures — index futures, currency futures, the clean abstract stuff that settles in cash and never makes you smell anything.

Commodities are the same machinery wearing a hard hat. The twist is brutal and simple: a commodity is a standardized physical good — crude oil, corn, copper, gold, live cattle — that has to be stored, shipped, and eventually handed to someone. You cannot keep a year’s worth of crude oil in your brokerage account. You cannot email someone 5,000 bushels of corn. So the entire market for commodity exposure runs almost entirely through futures: the binding forwards from your last course, now responsible for an actual barrel of something flammable.

This lesson is the practical on-ramp. We’ll cover why commodities live on futures, what a standardized contract actually pins down, who trades them (hedgers with real exposure vs speculators chasing P&L), the difference between closing your position and taking delivery (including the day oil traded at minus $37), and the basis — the gap between local cash prices and the futures, and how it slams shut at expiry. By the end you’ll understand why a wheat farmer and a hedge fund can be on opposite ends of the same contract and both be perfectly rational.

Why commodities trade on futures

Analogy. Picture two ways to guarantee yourself a pizza next Friday. Option one: walk into the kitchen tonight, buy all the flour, cheese and tomatoes, rent a fridge, and babysit them for a week so nothing rots. Option two: phone the pizzeria and lock in next Friday’s pizza at today’s price, pay a small deposit, and show up. Commodity futures are option two. Running a wheat silo — buying the grain, storing it, insuring it, fighting the rats — is option one, and almost nobody who just wants price exposure wants to run a silo.

Definition. Commodities trade on futures because a futures contract converts an illiquid, physical, must-be-stored asset into a standardized, leveraged, liquid financial instrument. You get three things at once:

• Standardization — every contract is identical, so they’re fungible and easy to price (next section).
• Leverage — you post margin (a good-faith deposit, a few percent of contract value) rather than the full cash price, so a little capital controls a lot of exposure.
• Liquidity — because contracts are identical and centrally cleared, there’s a deep market of buyers and sellers; you can get in and out in seconds.

All of that without ever touching the physical good. The exchange and clearinghouse stand between buyer and seller, so you’re not trusting a stranger to actually deliver — you’re facing the clearinghouse.

Worked example — exposure without the warehouse

Suppose you want exposure to $80,000 of crude oil. Compare the two routes:

Same $80,000 of price exposure. One route ties up the full $80,000 plus a logistics operation; the other ties up a few thousand dollars of margin and a few keystrokes. That gap is why commodity exposure is a futures market.

When to use it

Reach for commodity futures whenever you want the price of a physical good without the good itself: hedging a real exposure, speculating on a move, or building diversified exposure in a portfolio. Reach for the physical market only when you genuinely need the stuff — a refinery actually needs crude, a baker actually needs flour. If all you want is the price bet, the silo is somebody else’s problem.

The contract: standardized to the last detail

Analogy. A futures contract is like a shoe size. “A size 9” means the same thing in every store — you don’t renegotiate the dimensions of a size 9 each time you buy shoes. Likewise “one WTI crude contract” means one exact thing everywhere, so any size 9 substitutes for any other. Standardization is what makes them interchangeable and instantly tradeable.

Definition. A futures contract standardizes four things so only price is left to discover:

1. Quantity — the contract size (how much of the good per contract).
2. Quality / grade — the precise specification that’s deliverable (e.g. a particular sulfur content for crude, a moisture/grade standard for corn, a fineness for gold).
3. Delivery location — where physical delivery happens, if it happens.
4. Delivery month — when the contract expires and settles.

A few benchmark contracts worth memorizing:

A bushel is a unit of dry volume (~35.2 litres) used for grains; a troy ounce is the precious-metals weight unit (~31.1 grams), slightly heavier than a kitchen ounce. Cushing, Oklahoma is a small town that happens to be the physical delivery hub and pipeline crossroads for WTI crude — remember that name, it stars in the negative-oil story later.

Worked example — from contract size to notional

The notional value of one contract is just contract size × price. It’s the real economic size of your position — and it’s much bigger than the margin you posted.

So “one corn contract” isn’t a five-dollar flutter — it’s $22,500 of corn. And “one gold contract” is a quarter-million dollars of metal. The price tag on the screen ($4.50, $80, $2,300) is per unit; multiply by the contract size to see what you’re actually carrying.

When to use it

Standardization is a feature when you want to trade price fast and fungibly — which is nearly always. The moment you need something non-standard (an odd quantity, a specific grade, an unusual delivery point), you’ve outgrown the exchange and you’re in the over-the-counter forward world, negotiating bespoke terms with a counterparty — more flexible, less liquid, and now you’re carrying counterparty risk yourself.

Hedgers vs speculators

Analogy. Picture two people at the same negotiating table. One is a farmer holding a barn full of grain, terrified the price drops before he can sell — he wants to lock in today’s price. The other is a fund manager with no grain at all, who simply has a view and is happy to take the price risk the farmer wants to shed. The farmer is insuring; the fund is betting. Same contract, opposite motives — and they need each other.

Definition. Futures markets have two species of participant:

• A hedger has a real underlying exposure to the commodity and uses futures to offset it. Because they’re cancelling existing risk, they take the futures side opposite to their physical position:
  • A producer (farmer, oil driller, miner) is naturally long the physical — they own or will own the stuff — so they sell (short) futures. This is a short hedge.
  • A consumer (refiner, airline, cereal maker) is naturally short the input — they’ll need to buy the commodity later — so they buy (long) futures. This is a long hedge.
• A speculator has no underlying exposure. They take a futures position purely to profit from price moves, willingly absorbing the risk hedgers want gone. In doing so they supply the liquidity that lets hedgers transact at all.

Think of it as a risk-transfer market: hedgers pay (in spread, in the occasional “loss” on the hedge leg) to offload price risk; speculators get paid (on average, they hope) for carrying it.

Worked example — a corn farmer locks in the harvest

A farmer expects 50,000 bushels at harvest. One corn contract is 5,000 bushels, so to hedge the whole crop she sells 10 corn futures at $4.50/bushel — locking a price on 50,000 bushels. Now watch both legs (cash crop + futures) under two price outcomes at harvest:

Either way she nets $225,000 — exactly 50,000 × $4.50, the price she locked. When prices fall, the short futures gains and rescues the cash loss; when prices rise, the short futures loses but the cash crop is worth more by the same amount. The hedge converted an uncertain harvest value into a certain one. That certainty is the entire point.

When to use it

Hedge when you have a real exposure you can’t or don’t want to bear: a producer locking a sale price, a consumer locking an input cost, a treasurer smoothing cash flows. Speculate when you have a view and the risk appetite to be paid for carrying risk — and remember you’re the counterparty making the hedger’s insurance possible. The danger zone is a “hedger” who quietly becomes a speculator by over-hedging (shorting more than they actually produce) — now the “hedge” is a naked bet.

Delivery vs offset (and the negative-oil day)

Analogy. Booking a flight you don’t intend to take is fine if you cancel before departure. Offsetting a future is that cancellation: before the contract “departs” (expires), you sell the seat back to the market and walk away with the price difference. Forget to cancel a physically-settled ticket and you’re standing on the tarmac being handed 1,000 barrels of crude. The clock matters.

Definition. A futures position can end two ways:

• Offset (closing out) — you make the equal and opposite trade. A long sells one identical contract; a short buys one back. The exchange nets them to zero and your only cash result is the price difference. This is how the overwhelming majority of contracts end — typically only low single-digit percentages ever reach delivery.
• Delivery / settlement at expiry — if you hold to expiry, the contract settles:
  • Physical delivery — the short delivers the actual commodity to the long at the specified location (e.g. crude at Cushing). Real barrels, real tanks.
  • Cash settlement — some contracts (many financial futures, and some commodity contracts) never move the physical at all; they settle to a reference price in cash.

The point of physical delivery isn’t that it usually happens — it’s that the possibility of it forces the futures price to track the real commodity. Convergence (next section) is enforced by the threat of delivery.

The day oil went negative — April 20, 2020

Here’s why “I’ll just hold my long” can be a catastrophic plan. On April 20, 2020, the expiring front-month WTI contract settled at −$37.63 per barrel — negative. Sellers were paying buyers over $37 a barrel to take oil off their hands. How?

The COVID demand collapse had glutted the market and Cushing’s storage was effectively full. Longs holding the expiring contract faced actual physical delivery of crude they had nowhere to put — no tank, no buyer, no truck. Taking delivery meant paying for storage that didn’t exist. Rather than be forced to receive barrels they couldn’t store, panicked longs paid anyone to take their contracts, and the price drove straight through zero into negative territory.

The lesson written in red ink: physical delivery is real and it can bite. The contract you assumed was an abstract price bet turned into an obligation to physically receive a flammable liquid into a full tank farm.

When to use it

Offset is the default for anyone trading price — speculators, and even most hedgers, who close the futures and transact in their local cash market separately. Hold to physical delivery only if you genuinely want the commodity at the contract’s specified grade and location (some commercial users do exactly this). And whether you want delivery or not, track your expiry and storage situation religiously — the calendar is not optional.

The basis and convergence

Analogy. The basis is the gap between the price at your local store and the price on the national catalogue. Your local grain elevator might pay a hair under the national futures price because of where it sits and what grade it handles. But as the catalogue’s “order by” date arrives — the futures delivery date — the two prices are forced to meet, because at that instant they describe the same purchase, at the same time. The local quirk that kept them apart runs out of runway.

Definition. The basis is the difference between the local cash (spot) price and the futures price:

$\text{basis} = \text{cash}_{\text{local}} - F$

Basis exists for three reasons: location (your spot market isn’t the delivery point), grade (your local product isn’t exactly the deliverable spec), and time (cost-of-carry between now and the futures date). As expiry nears, location, grade and time effects shrink, and the futures price converges to spot. At delivery, in the limit, $F = S$ — otherwise a riskless arbitrage (buy cheap, deliver into dear) would exist and traders would instantly close it.

The residual the hedger keeps is basis risk: their local cash price doesn’t move in lockstep with the futures they used to hedge. A hedge with futures kills the big, market-wide price risk but leaves this smaller, local wobble.

Worked example — basis converging to zero

A corn merchant hedges with futures. Watch the basis (cash − futures) tighten as delivery approaches:

The −$0.10 starting basis (local corn a dime under the future) closes steadily to zero as delivery arrives and the two prices are forced to meet. A hedger who locked in via futures still faced the movement of that basis from −$0.10 to $0.00 — a 10-cent basis risk the futures hedge couldn’t remove, even though it neutralized the far larger swings in the outright price.

Use the chart to see the curve shapes and how the front of the curve sits right at spot — convergence in picture form:

When to use it

Watch the basis whenever you hedge a local exposure with a standardized contract — which is basically every real hedger, since the exchange’s delivery point and grade are almost never exactly yours. A stable, predictable basis makes futures a clean hedge. A volatile basis (unusual local supply gluts, grade mismatches, transport bottlenecks) means a futures hedge leaves meaningful residual risk, and you may want a more tailored instrument. And always remember: whatever the basis is today, convergence guarantees it’s heading to zero by delivery.

Putting it together

Step back and the whole machine clicks into one shape. Commodities are physical — they must be stored and delivered — so almost all commodity exposure trades through futures, which turn an illiquid physical good into a standardized, leveraged, liquid instrument. That standardization is the engine: every contract pins down quantity, grade, delivery location, and delivery month, leaving only price to trade, and notional = size × price is what you actually carry (much bigger than the margin you posted).

Two tribes meet in that market. Hedgers have real exposure and take the opposite futures side to cancel it — producers short (short hedge), consumers go long (long hedge) — accepting “losses” on the futures leg as the price of certainty. Speculators take the other side for profit and, in doing so, supply the liquidity that makes hedging possible. Most positions never touch the physical: traders offset before expiry, and only a sliver go to delivery — but that sliver, and the day WTI printed −$37.63, prove physical settlement is real and the calendar is not optional. Finally, the basis (local cash − futures) measures the wedge of location, grade and time, and convergence forces it to zero at delivery — leaving the hedger only the smaller basis risk to carry. Master those five ideas and you can read any commodity futures position and say exactly who’s hedging, who’s betting, and what happens at expiry.

Key Takeaways