Supergroup falls 8.9% to 756p on poor interims and the news full-year margins will be hit by the need for markdowns. As foreshadowed in a recent profits warning (31 Oct), underlying pre-tax profits slumped 30% to £12.5 million, though the Superdry brand-owner insists it can still achieve downgraded full-year profits guidance of between £60 million-to-£65 million.