U.S. stocks settled lower on Friday, with the Nasdaq Composite falling more than 800 points during the session after President Donald Trump threatened a sweeping increase in tariffs on Chinese imports.The S&P 500 plunged 2.4% last week, while the Dow also recorded a weekly decline of 2.7%.Wall Street analysts make new stock picks on a daily basis. Unfortunately for investors, not all analysts have particularly impressive track records at predicting market movements. Even when it comes to one single stock, a ...