As January ended yesterday Wall Street celebrated what investors there are saying was their best month since October, 2011. The optimistic attitude was maintained despite the disappointing weaker-than-expected performance which was reported in Tuesday’s economic reports, which surprised investors after a receiving a series of positive data about the economy in recent months.

According to the most recent data available, the Dow Jones Industrial average closed the session at 12,633.89, down 19.83 points or 0.16 percent. The Standard & Poor’s 500 Index was also down by 0.55 points, 0.04 percent to close at 1,312.46. The Nasdaq Composite Index finished up, however, by 1.46 points, or 0.05 percent, at 2,813.40.

The month of January ended up, with the Dow up by 3.4 percent, the S&P 500 up by 4.4 percent, and the Nasdaq finished in the black by a cool 8 percent.