There are many identifiable stages in a financial mania. These include: enthusiasm, greed, delusion, denial, fear, capitulation, and despair. In the greed stage of a financial bubble, the bullish sentiment reaches a feverish pitch and prices rise very rapidly. Every owner in the market is making money and most believe it will go on forever.

As prices continue to climb, buyers become very enthusiastic about owning the asset, and they tell all their friends about their great investment. The word-of-mouth awareness and increased media coverage bring even more buyers to the market. Egomania sets in as everyone thinks she is a financial genius. Any intellectual analysis at this stage is merely a cover for emotional buying and greed.

During the Great Housing Bubble, there were many instances of properties receiving a dozen or more offers the day they were listed, with many in excess of the asking price. Encouraged by realtors, some buyers wrote emotional letters to sellers to convince them why they should be bestowed with the honor of home ownership.

Most people who are bullish already own the asset, but for prices to continue to rise there must be more buying. For buying to occur, someone who was either bearish or ignorant of the rally must be convinced to buy. In other words, a greater fool must be found. Once everyone is made aware of the market rally and is convinced to buy, you simply run out of new buyers. Once there is a shortage of potential buyers, prices can only go down.