Traders work on the floor of the New York Stock Exchange on Jan. 22, 2013 in New York City.
Traders work on the floor of the New York Stock Exchange on Jan. 22, 2013 in New York City. - 
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This final note today -- a little bit existential, I'll grant you, but somehow appropriate on a day when two of the three major stock indices closed at five-year highs.

There's another index we might want to pay heed to today. It's called the VIX, also known as the volatility index, or the fear index -- a measure of how worried Wall Street is about what's coming down the pike.

Not at all worried, it seems. The VIX is at five-year lows this week.

And I just wonder if maybe we don't want Wall Street to be just a little bit afraid.

Follow Kai Ryssdal at @kairyssdal