I have a soft spot for Arizona. I love rooting for underdogs. I think Sedona is one of the most beautiful towns in the country. Don't even get me started on the majestic beauty of the Grand Canyon.

However, come Sunday, I'll be rooting for the Pittsburgh Steelers. Sorry, Cardinals. It's not personal: It's just business.

See, according to a Pittsburgh-based wealth management firm, the market has soared an average of 25.5% in the five previous years that the Steelers have won the Vince Lombardi trophy. Why should this year be any different, right?

Don't follow the logic?
Of course you don't. It's bogus. It's illogical. It's too small a sample to be anything more than fluke.

How many people do you see parroting the old Super Bowl mantra -- that if an NFC team or one from the pre-1970 NFL wins, that the market will usually close higher -- this year? Not too many, right? Not after the New York Giants won it all last year and the market still got spanked.

I have nothing against a Pittsburgh financial firm rallying around the home team, but let's hope that they don't make their investing decisions that way.

Go Steelers? It's in the Cards.

Longtime Fool contributor Rick Munarriz is a member of the Rule Breakers analytical team, seeking out the next great growth stock early in its defiance. The Fool has a disclosure policy.