Traders on the floor of the New York Stock Exchange.

The stock market's unprecedented consistency in 2014 generated a trading maxim that echoed on trading floors and social media on a daily basis: Buy the dip. And traders see no reason to abandon this simple, but money-making credo in the new year.

With no losing streak longer than three days this year, any decline in the index proved a buying opportunity for investors. The never had a losing streak shorter than four days in any other calendar year.