Last day of the month, and once again we buck the trend: The S&P 500 up 1.2 percent so far. February is the weak leak in the "Best Six Months" strategy, according to the Stock Trader's Almanac, averaging down 0.1 percent in the last 63 years.

Asian markets were strong overnight, led by Japan's Nikkei, up 2.71 percent as Prime Minister Shinzo Abe officially submitted his nomination of Haruhiko Kuroda for Bank of Japan chief. Kuroda, who supports aggressive monetary policy, is expected to inject more stimulus, or easy money, into the economy this year.