THE REAGANESQUE OBAMA BOOM:

Exactly six years ago Monday the S&P 500 closed at 676, the lowest closing level of the terrible bear market in stocks.

Investors brave enough to pull the trigger on stocks back then would have made a killing: The S&P 500 is up more than 200% since March 2009, making this the fourth-longest bull market in history.

Veteran market strategist Art Hogan was one of the few stock pickers brave enough back then to predict the carnage was over. He appeared on CNBC in October 2008 to declare: "Enough is going to be enough. ... The bottom gets put in today."

The call became known as "Hogan's Bottom," and it proved to be a medium-term basement for stocks.

"It was not a very crowded room of people who felt the worst was over," Hogan told CNNMoney.

'This is for real': Hogan's call was based on a realization that stocks had fallen more than even during the Crash of 1929 and a feeling that the federal government would respond more forcefully this time. He was right: The U.S. rescued the banks and the Federal Reserve restored confidence by doing things no one had ever seen before like quantitative easing and near zero percent interest rates.

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