Almost £360 million (NZ$654m) has been wiped off the value of International Airlines Group following the catastrophic computer systems failure at British Airways that caused havoc for holidaymakers and left the carrier facing a hefty compensation bill.
Shares in BA-owner IAG, which is listed in both London and Madrid, slumped by 2.8pc as investors were left counting the cost of the IT meltdown which led to hundreds of flights being cancelled or delayed and left an estimated 75,000 passengers stranded.
The fall knocked about €410m ($648m) off the market capitalisation of IAG in Madrid. Its London-listed stock is expected to follow suit tomorrow morning when trading resumes after the Bank Holiday.
It came as BA chief executive Alex Cruz faced questions for the first time since the crisis began on Saturday morning, in which he refused to resign and refuted suggestions that cost-cutting measures had contributed to the turmoil, which continued to cause disruption to flights today.
Willie Walsh, the boss of parent company IAG, which also owns Spanish airlines Vueling and Iberia as well as Ireland's Aer Lingus, has not commented or been seen despite the calamity at his company's biggest airline.