As households across the globe count the costs of the US-Israel war in Iran, some companies have been counting bumper profits instead. The uncertainty sparked by the conflict, and Iran's effective closure of the Strait of Hormuz, is driving up the cost of living and hitting the budgets of firms, families and governments. But while some have been pushed to the brink, others, whose core businesses are more profitable in a war or who benefit from volatile energy prices, have seen record earnings.