Inside Wall Street: One Pro's Argument for the Dow's Return to 14,000

After a rambunctious 50% run-up since March, could the Dow Jones Industrial Average still have the spark and energy keep such an ambitious advance going?

As investors try to peer ahead into 2010, one nagging question for the charging bulls is whether they'll ever see the Dow again at 14,164.53. That's the magic number representing its all-time high of Oct. 9, 2007 -- the days of what Alan Greenspan termed "irrational exuberance."