But what if the company is intentionally overvaluing itself for one of the biggest events in stock market history?

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If this is indeed the case, our base price estimate might be overvaluing the company by a full 10%.

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Some of these methods commonly lag the market, underestimating value during uptrends, and overvaluing assets in a downtrend.

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You see academic tulip mania: students and their parents are overvaluing a commodity for which there are cheap and plentiful substitutes.

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According to Caplan, a professor at George Mason University, the major mistake that parents (or prospective parents) make is overvaluing the present.

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The Dalrymple report claimed the company is vastly overvaluing its real-estate assets, which investors can't fully assess because Gerova hasn't filed financial statements since it became a public company last year.

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However, Comcast has not always been a great stock, which I primarily attribute to the markets massively overvaluing their shares from the late 1990s up to the Great Recession of 2008.

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"There are lots of reasons (for mistakes), like overvaluing combine performance, lack of proper coaching, or immaturity, " says former Green Bay Packers executive Andrew Brandt, who now runs the website NationalFootballPost.com.

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