The S&P 500 initially took a dive on the last day of January, but pared its earlier losses. Despite the daily losses due to the uncertainty following President Donald Trump's inauguration and his controversial executive orders, the S&P 500 closed January with a 1.79% year-to-date gain. Indeed that's a positive signal for the January Barometer, an indicator for how the index will move over the next 11 months. And the saying goes, "as the S&P 500 goes in January, so goes the year." The Stock Trader's Almanac January Barometer says there's an 87.9% chance, depending on whether the S&P 500 ends January with a gain or a loss, the index's stock pattern will follow suit. This falls inline with other January indicators that shows the S&P 500 is poised to close with gains. The Santa Claus Rally, the last five trading days in December and the first two in January, saw a gain of 0.43%. The first five trading days in January is another important indicator, and gained 1.4% in January.