By Amber Murray To say that investors have lost confidence in Asos may be something of an understatement: its share price has plummeted since April 2021, to the tune of about 90 per cent. The stock resembles a playground slide, dotted with small cliffs that correspond to profit warnings, news of a slump in sales, or lowered guidance. In April 2023, its stock was even shorted by Matthew “Dark Destroyer” Earl, who placed a £4m bet on the e-tailer. For a company which once revolutionized the online e-commerce market for young shoppers, it’s an unfortunate state of affairs. Has Asos lost its compe…