FTSE 100 tumbles as HSBC slips, Apple warns on sales

(Reuters) - London's FTSE 100 slid to a two-week low on Tuesday, weighed down by a 4% drop in financial heavyweight HSBC as traders sold stocks globally after tech giant Apple warned of a shortfall in revenue due to the coronavirus epidemic.The main index shed 0.9% by 0804 GMT, with HSBC dragging a sub-index of banks almost 2.5% lower after its annual profit declined and it laid out plans for a major strategic overhaul.Global market participants poured money into perceived safe havens..