Australian pension funds are increasing currency hedges to protect their global stock portfolios as the local dollar experiences its biggest annual surge in five years. The move comes as the Australian dollar's strength threatens to erode returns from international investments, prompting fund managers to take defensive measures.

Currency hedging allows funds to lock in exchange rates and shield against currency fluctuations that can significantly impact overseas holdings. With the Australian dollar rising sharply against major currencies, pension funds are moving to mitigate potential losses from their unhedged international positions. The surge in the local currency has created headwinds for global equity returns.

This hedging strategy reflects growing concerns about currency volatility and its impact on long-term investment performance. Pension funds, which manage billions in retirement savings, must carefully balance the costs of hedging against the risks of currency exposure. The decision to increase hedges signals a shift in market sentiment and highlights the challenges of managing international portfolios in a rising currency environment.