What is the hedge ratio?
The hedge ratio compares the value of a hedged position to the total size of the position. A hedging ratio compares the value of futures contracts to the specified cash commodity.
Investment instruments like futures contracts enable investors to lock in a price for a tangible item in the future.
The hedge ratio is the hedged position/total position.
How it works
Having $10,000 in foreign equities exposes you to currency risk. To safeguard against losses in this position, you can hedge the foreign stock investment with several holdings. Your H. ratio is 0.5 ($5,000 / $10,000) if you hedge $5,000 in stock with currency. This protects 50% of your foreign stock investment from currency risk.
Types of Hedge Ratio
The minimal variance hedge ratio is crucial for cross-hedging to reduce position value variation. How many futures contracts do you buy to hedge a position? It depends on the minimal variance hedge ratio or optimal hedge ratio.
The calculation involves multiplying the correlation coefficient between spot and future price movements by the ratio of the spot price standard deviation to the future price standard deviation. After determining the ideal ratio, divide the product of the ratio and the units of the position by one futures contract to find the best number of contracts to hedge.
Example
After the crude oil market has been weak, an airline operator worries about jet fuel prices rising. The airline wants to hedge its purchase price of 15 million gallons of jet fuel next year. Assume a high connection between crude oil futures and jet fuel spot prices at 0.95.
Assume crude oil futures and spot jet fuel price standard deviations are 6% and 3%, respectively. Thus, the minimal variance hedging ratio is 0.475 (0.95 * (3% / 6%)). The NYMEX WTI crude oil futures contract is a 1,000-barrel (42,000 gallons) contract. The best contract count is 170 (0.475 * 15 million) / 42,000. Thus, the airline would buy 170 NYMEX WTI crude oil futures contracts.
Conclusion
- This ratio compares the hedged portion to the total portfolio.
- The minimum variance ratio determines the appropriate options to hedge a position.
- The minimal variance ratio helps cross-hedging decrease position value variance.