Good morning, it's Thursday, September 10th and here are the Five Things You Must Know Before the Market Opens, presented by The Street: First up, Stock Futures Point Lower Stock futures declined Thursday after Wall Street rebounded and the S&P 500 recorded its best day in three months. Contracts linked to the Dow Jones Industrial Average fell 119 points, S&P 500 futures were down 15 points and Nasdaq futures tumbled 63 points. The Dow gained 439 points, or 1.