Futures Annualized Rolling Basis

2021年3月11日

What is Annualised Rolling Basis?

Basis

In futures trading, the basis is the relative difference between the price of the future contract and the spot price.



This quantity is usually presented as an absolute price difference, but in its relative form can be annualised by dividing by the time to expiry τ of the contract expressed in years:



Rolling Basis

Let us consider a hypothetical contract starting today with a given tenor of 1 month (1M) or 3 months (3M). Such a contract does not necessarily trade in the market and thus has no observable price to calculate the basis. The rolling basis is the basis between this ’bespoke’ contract and the spot.

This quantity is inferred from existing contracts’ basis and the calculation is accomplished in two steps:

1. Forward yield

First, we select two futures contracts with expiries T1 and T2 surrounding the hypothetical contract’s expiry Ttarget (T1 ≤ Ttarget ≤ T2). The forward yield is calculated as:



Where:

• Ti: time to maturity for contract i
  
• BASISi: annualised basis for contract i
  

2. Weighted Basis Average

The rolling basis is calculated as a weighted average between the first contract’s basis and the forward yield:



The description of the indicator was copied from another source, but fully corresponds to this indicator.

2021年3月27日

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UPD of futures

2021年6月21日

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Updated futures and some calculations

2021年6月21日

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Update

2021年10月4日

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• Update
  

2022年2月9日

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upd futures

2022年10月15日

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Data update