The stock market had another tough day on Tuesday. Despite the huge reversal that led to positive closes on Monday for the Dow Jones Industrial Average (DJINDICES: ^DJI), S&P 500 (SNPINDEX: ^GSPC), and Nasdaq Composite (NASDAQINDEX: ^IXIC), downward pressure once again asserted itself at the open on Tuesday morning. Despite a similar bounce that sent the Dow briefly into positive territory in the mid-afternoon, Wall Street wasn't able to pull a rabbit out of its hat for a second straight day.