What it means
Commodity markets quote two kinds of price. The spot price is what you pay for delivery now, and futures prices are what you pay today for delivery on a specified future date, and the relationship between them describes the market's mood.
When futures prices sit below the spot price, the market is in backwardation. When they sit above it, the market is in contango, which is the more usual condition because storing a physical commodity costs money and that cost is normally built into later prices.
Backwardation therefore says something specific: the value of having the goods in hand right now outweighs the cost of storage. Economists call that value the convenience yield, and it spikes during shortages, strikes, poor harvests, pipeline outages or wars.
For investors, backwardation has a practical consequence known as positive roll yield. A fund holding futures must periodically sell the expiring contract and buy a later one, and in backwardation the later contract is cheaper, so each roll is done at a discount.
The nuance worth holding on to is that backwardation is a market condition, not a prediction. It describes today's price structure, and if the shortage eases sooner than expected, the spot price can fall towards the futures price rather than the futures price rising to meet it.
In practice
Real-world examples.
Example
A cold snap disrupts natural gas production and the spot price jumps well above the summer contracts. Utilities with storage capacity sell gas into the immediate market and buy cheaper forward contracts to refill later.
Example
A copper mine strike creates a shortage of refined metal. Manufacturers who need copper this month pay a premium over the three-month contract price, putting the exchange into backwardation until the strike is settled.
Example
A commodity index fund reports a return higher than the underlying spot price movement over a year. Analysts trace most of the difference to positive roll yield earned while several markets in the index were in backwardation.
Think of it
“Backwardation means futures cost less than spot-discount for future delivery.
Formula
Calculation
The market is in backwardation when Futures price < Spot price.
Basis = Spot price - Futures price
Crude oil trades at a spot price of $80 per barrel, while the six-month futures contract trades at $76 per barrel.
Basis: $80 - $76 = $4 per barrel, which is $4 / $80 = 5% of spot over six months, or roughly 10% on a simple annualised basis.
A trader buys ten six-month contracts, each covering 5,000 barrels, at $76 per barrel: 10 x 5,000 = 50,000 barrels at a cost of 50,000 x $76 = $3,800,000.
If the spot price is still $80 when the contracts expire, the position is worth 50,000 x $80 = $4,000,000.
Gain: $4,000,000 - $3,800,000 = $200,000, which is $4 per barrel captured purely from the price structure rather than from any rise in the price of oil.Case study
Seen in the real world.
Stonepath Commodities is an illustrative trading firm created to show how backwardation affects a real decision. It managed a diversified commodity fund and had been suffering steady losses from rolling futures contracts in markets that were persistently in contango.
The team rebuilt the fund's rules so that capital was concentrated in the commodities showing the steepest backwardation and pulled back from those in the deepest contango. Over the following two years the underlying spot prices barely moved on average, yet the fund outperformed its old benchmark by several percentage points, almost entirely from roll yield.
The lesson from this fictional example was that the shape of the futures curve mattered as much as the direction of prices. The team also learned that backwardation can vanish quickly once a supply disruption resolves, so they added a rule to reassess the curve monthly rather than annually.
Watch out
Common mistakes.
- Reading backwardation as a forecast that prices will fall. It reflects present scarcity, and prices can converge from either direction.
- Confusing backwardation with contango. Backwardation means later prices are lower than the spot price; contango means they are higher.
- Assuming positive roll yield is free money. The underlying commodity price can still fall far enough to wipe out any gain from the curve.
Questions
People also ask.
What causes backwardation?
Usually an immediate supply shortage or unusually strong current demand, which makes holding the physical commodity more valuable than holding a promise of future delivery.
Does backwardation happen in financial futures?
It can, particularly in interest rate and equity index futures when expected income or rate movements outweigh the cost of carry, though the commodity case is far more common.
How long does backwardation typically last?
It tends to persist only while the underlying tightness persists, so it can disappear within weeks once supply recovers, although some markets stay in backwardation for years.
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