By Jim AisnerIt took more than a century for the Dow Jones Industrial Average, which tracks 30 selected blue chip stocks, to hit 20,000, but it finally happened last Wednesday – a milestone marked by banner headlines and happy investors. Jim Aisner: Last week the Dow closed above 20,000 for the first time since its creation in 1896. Luis Viceira: The Dow is an index that has traditionally included the largest companies traded in the U.S. stock market. There was no specific event that brought the Dow over the 20,000 mark last week. So again, we have a tax effect impacting stock prices positively.

Source: Forbes January 31, 2017 17:02 UTC