AirAsia X Bhd has become the world's worst-performing airline stock after management's decision not to hedge jet fuel costs backfired spectacularly. The low-cost carrier's bet against hedging when oil prices were low has turned into a costly miscalculation following the Iran war, which sent fuel prices soaring. This strategy has left the company exposed to dramatic cost increases.

The timing of AirAsia X's decision proved disastrous. With oil prices already volatile, the Iran war created a perfect storm for unhedged airlines. While many competitors protected themselves against fuel price spikes, AirAsia X management chose to forgo hedging, believing they could weather any price fluctuations. That gamble has now cost shareholders dearly.

As the worst-performing airline stock globally, AirAsia X's situation serves as a cautionary tale about the risks of foregoing basic risk management tools. The company's share price has plummeted as investors punish the management team for what appears to be a fundamental strategic error. In an industry where fuel costs can make or break profitability, AirAsia X's unhedged position has proven catastrophic.