Hedging with forward futures
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Hedging with Forward & Futures. Risk Management Prof. Ali Nejadmalayeri, a.k.a. “ Dr N ”. Measuring Statistics. Suppose we have T observations of past changes and we need to forecast change and volatility in T +1. Let’s say change is Δ S i = S i – S i -1 , then expected change is:

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Hedging with Forward & Futures

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Hedging with forward futures

Hedging with Forward & Futures

Risk Management

Prof. Ali Nejadmalayeri,

a.k.a. “Dr N”


Measuring statistics

Measuring Statistics

  • Suppose we have T observations of past changes and we need to forecast change and volatility in T+1. Let’s say change is ΔSi = Si – Si-1, then expected change is:

  • The volatility of the change is :


Square root volatility

Square Root Volatility

  • If a series of random variables are identically, independently distributed, i.i.d., with volatility per period of σ, the volatility of the series of random variables over N periods is σ√ N


Hedging with no basis risk

Hedging with no Basis Risk

  • Value of hedged position is the sum of Cash Position + Gain from Hedge

  • One-day VaR of hedged position is 1.65Vol(ΔPV of Hedged Position)

  • In perfect hedging, i.e., making the expected value change zero, then requires correct Hedge Ratio. As the forward price changes, the hedge ratio changes. To change the hedge due to marked to market is Tailing Hedge.


Hedging with basis risk

Hedging with Basis Risk

  • Value of hedged position is the sum of Payoff of Cash Position + Payoff of Hedge

  • In any date Basis is the difference between spot and forward price. The Basis Risk is when the basis is not deterministic.

  • Volatility-minimizing hedge is Volatility-minimizing hedge ratio  Exposure to the risk factor


Hedge with basis risk

Hedge with Basis Risk

  • Relationship between cash position and futures price is deterministic:


Hedge with basis risk1

Hedge with Basis Risk

  • Hedge Size

  • Hedge Position


Hedging with random basis

Hedging with Random Basis

  • When basis is random, then an approximate linear relationship between spot and futures is needed to figure out how changes in the spot and changes in the futures are linked with each other.

    • We need to a run a regression:

    • Simply put then, the hedge ratio is:


Hedge with random basis

Hedge with Random Basis

  • Relationship between cash position and futures price is only approximately deterministic:


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