What Are Contango and Backwardation?
Contango and backwardation describe the price relationship between the current spot price of an underlying asset and the prices of its futures contracts across different expirations. This relationship is visualized as the forward curve (term structure).
- Contango: Futures price > Spot price — the forward curve slopes upward
- Backwardation: Futures price < Spot price — the forward curve slopes downward
This price structure has direct implications for trading strategies, roll costs, and the valuation of futures positions.
Contango in Detail
What Causes Contango?
Contango is the normal state of many futures markets. The futures price sits above the spot price because it incorporates additional costs:
- Storage costs (for commodities): insurance, warehouse rent, handling
- Financing costs (cost of carry): interest on tied-up capital
- Convenience yield: the premium that holding physical inventory provides is subtracted
The simplified formula:
Futures Price = Spot Price + Storage Costs + Financing Costs - Convenience Yield
Contango Example
WTI crude oil trades at $70.00 on the spot market. The futures contract with 3-month delivery is quoted at $71.50. The $1.50 difference reflects the storage and financing costs for that period.
Impact on Traders
For traders who roll futures positions, contango creates negative roll yield: the more expensive new contract is bought while the cheaper expiring contract is sold. For ETFs based on futures (e.g., oil ETFs), this effect erodes returns over time.
Backwardation in Detail
What Causes Backwardation?
Backwardation occurs when the market expects a short-term shortage of the underlying asset or when current demand exceeds supply:
- Supply disruptions: production outages, geopolitical crises
- High short-term demand: seasonal peaks, emergency needs
- Low inventories: depleted reserves increase the premium for immediate delivery
Backwardation Example
During an oil crisis, crude oil trades at $85.00 on the spot market. The 3-month future is quoted at $80.00, as the market expects the crisis to ease and prices to fall by then.
Impact on Traders
Backwardation generates positive roll yield: the cheaper new contract is bought while the more expensive expiring contract is sold. This is one reason why long-term commodity investors prefer periods of backwardation.
Contango and Backwardation in Index Futures
For equity index futures (ES, NQ), the situation is slightly different:
- Mild contango is normal, as financing costs (risk-free interest rate) are priced in
- Dividends reduce the contango effect, since the futures holder does not receive dividends
- Backwardation in indices is rare and occurs only when expected dividends exceed financing costs
Reading the Forward Curve
The shape of the forward curve provides important market signals:
| Curve Shape | Meaning |
|---|---|
| Steeply rising (strong contango) | High storage costs or oversupply in the spot market |
| Flat | Balanced market, low carry costs |
| Declining (backwardation) | Spot market tightness or high short-term demand |
| Inverted (steep backwardation) | Acute supply crisis, extreme short-term need |
Frequently Asked Questions
Is Contango Bad for Traders?
Not inherently. Contango is the normal state of many markets. For day traders, it barely matters since positions are closed within a single day. For longer-term positions or futures-based ETFs, however, contango can impair performance through negative roll yield.
Can a Market Switch Between Contango and Backwardation?
Yes, and it happens frequently. Commodity markets like oil and natural gas regularly alternate between both states, depending on supply and demand shifts, geopolitical events, and inventory data.
How Do I Know If a Market Is in Contango or Backwardation?
Compare the price of the front-month contract with contracts further out in time. If later contracts are more expensive, the market is in contango. If they are cheaper, the market is in backwardation. The forward curve can be viewed on the CME website or in professional trading platforms.
What Role Does Contango/Backwardation Play for Hedgers?
For commercial hedgers (e.g., airlines hedging jet fuel prices), the curve shape determines hedging costs. In contango, hedging is more expensive; in backwardation, it is cheaper — influencing decisions about timing and scope of hedges.