So that's why the Yahoo (YHOO) insiders have been selling. After the bell internet giant Yahoo said fourth-quarter profits doubled, but missed analyst’s forecasts by a penny.

In after market trading, Yahoo is trading down $5.36 or 13%. Whenever a stock is priced for perfection, this is what usually happens.

Amazingly, shares of Google (GOOG) are also trading down $16.61 in sympathy with Yahoos miss. Google is currently priced at $450.50 in the after market.