Hedging and Portfolio Applications · CFDs Trading Guide

An index hedge targets shared market exposure rather than every company risk. Beta provides an estimate of sensitivity, not a promise of precise protection.

Choose an economically relevant index

A broad domestic index may be a weak hedge for a concentrated foreign technology portfolio. Compare sector weights, currencies and business drivers. The index should relate to the portfolio risk being reduced. A convenient contract with low margin is not necessarily the right reference for the exposure.

Estimate the hedge amount

A simple full beta hedge uses portfolio value multiplied by estimated beta as the short index notional. For a $50,000 portfolio with beta 1.2, the estimate is $60,000. If an index is at 5,000 and each CFD is $1 per point, twelve contracts provide that notional. This is a model calculation, not a recommended hedge.

Test the approximation

If the index falls 4% and the portfolio follows the assumed beta exactly, the portfolio loses about $2,400 and the short hedge gains about $2,400 before costs. Actual holdings can diverge because beta is estimated from history. Company news, currency changes and nonlinear behaviour can leave a substantial residual loss or gain.

Maintain cash and review assumptions

An index rally can create CFD losses even while the portfolio rises. Separate custodians and settlement timing can make the hedge cash hungry. Reassess beta after portfolio changes and avoid frequent resizing without considering costs. For a partial hedge, specify the fraction of estimated market exposure being reduced and document why it is appropriate.

Try it yourself

A $80,000 portfolio has estimated beta 0.9. You model hedging half its market exposure. An index CFD has $6,000 notional per contract. How many whole contracts match the estimate?

Show the worked answer

The estimated hedge notional is $80,000 × 0.9 × 50% = $36,000. Six contracts match that amount. The calculation does not hedge company specific or model risk.

Further reading

Educational material, not a recommendation to trade. Numerical examples are hypothetical. CFDs involve leverage and substantial risk of loss. Availability, costs and protections depend on the contract, legal entity, jurisdiction and client classification.

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