The technical definition of a stock market correction is a decline of 10% or more. According to this definition the US stock market, as represented by the S&P 500, has not suffered a correction in more than two years (May/June 2012):

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SPX_2012-2014

The November 2012 decline clocked in at -9.75%, falling just shy of the textbook definition of a market correction. However, the November 2012 low is often used to mark the beginning of the current market uptrend due to the fact that the angle of ascent rapidly steepened shortly thereafter. While the current streak of 26 months without a correction is impressive, it falls well short of the March 2003 - July 2007 period in terms of duration:

SPX_2003-2007

The unfaltering uptrend appears to be alive & well, and history indicates that it could last quite a bit longer before faltering in any meaningful way.