According to CNN, US stocks dropped sharply on Thursday morning after Apple warned it will badly miss its quarterly sales forecast because of weakening growth and trade tensions in China.<br />Apple (AAPL), among the world's most widely held stocks, plummeted 10% and fell to the fourth-biggest public company behind Amazon (AMZN), Microsoft (MSFT) and Alphabet (GOOGL).<br />The news sent shudders through global markets. The Dow declined 650 points, or 2.8%, while the S&P 500 retreated 2.4%. <br />
