"Of course, the obvious question after a strong month is what relevance it has for the market going forward. On one hand, historically, years in which stocks posted significant gains in January have usually seen those gains grow over the rest of the year. Yet looking back to just last year, stocks continued their strong run throughout the first quarter, only to give back all their gains during April and May on fears that the aging bull market would come to an end because of various domestic and international economic pressures.
You shouldn't take January's big gains as a certain sign that the stock market will continue powering ahead for the rest of 2013. By keeping an even keel and understanding both the bullish and bearish arguments on stocks right now, you'll put yourself in the best position to profit no matter what happens to the overall market."