Futures Basis, Contango, and Backwardation
Read spot-futures gaps and curve shape without turning them into return forecasts.
Key takeaways
- Synchronize spot and futures references.
- Use curve labels descriptively.
- Include carrying and execution constraints.
Futures Basis, Contango, and Backwardation: the decision context
Basis compares a future with a synchronized named spot reference. State expiry, timestamps, and raw or annualized formula for reproduction.
Contango and backwardation describe curve shape, not guaranteed spot direction. Build curves from simultaneous comparable contract observations.
What evidence deserves attention
Financing, custody, hedging, and constraints can influence basis. Inspect settlement and access before interpreting an apparent spread.
A repeatable review workflow
With spot at 100 and a future at 102 expiring in 90 days, raw basis is 2% and a simple annualized figure is about 8.1% using 365/90. Build the same calculation across maturities to inspect curve shape, then subtract executable fees, spread, financing, and collateral costs.
Limits, failure modes, and risk
Annualization assumes persistence or repeatability that may fail. Present raw basis with fees, margin, slippage, and roll limitations.
Annualization is not a promised return and assumes convergence plus the ability to hold and rebalance. Different settlement indices, shorting constraints, margin calls, roll timing, and nonlinear compounding can make an apparent contango or backwardation trade unprofitable.
Frequently asked questions
What is the first thing to distinguish in Futures Basis, Contango, and Backwardation?
Start with this article's central checkpoint: Synchronize spot and futures references. Then verify the definition and scope against the cited sources.
How can I check Futures Basis, Contango, and Backwardation in practice?
Use the worked procedure in the article and keep these two checks together: Use curve labels descriptively. Include carrying and execution constraints.
What is the most important limitation?
Basis positions can lose through spread widening, liquidation, settlement differences, or unavailable hedges.
How this article was prepared
This educational article was prepared with AI assistance, then reviewed editorially for clarity and checked against the cited source material.