Hedge Ratio

The hedge ratio represents the proportion of an underlying exposure that is covered by a hedging instrument. It determines how much of a physical or financial position is offset through derivatives such as futures, swaps, or options. A hedge ratio of 1.0 indicates a fully hedged position, while a ratio below 1.0 reflects partial hedging.

In practice, hedge ratios are chosen based on risk tolerance, liquidity, accounting treatment, and market outlook. For example, an oil producer expecting to produce one million barrels may hedge only 70% of expected output to retain some upside exposure to rising prices. Alternatively, a utility may hedge close to 100% of forecast demand to stabilize costs.

Hedge ratios also play a key role in quantitative risk management. Statistical hedge ratios can be calculated using regression analysis to minimize variance between the hedge and the exposure. Poorly chosen hedge ratios can lead to over-hedging or under-hedging, increasing rather than reducing risk. As such, hedge ratio selection is a core decision in structured risk management programs.