Somewhere in the middle of the Bull market the first common-stock flotations make their appearance. These are priced not unattractively, and some large profits are made by the buyers of the early issues. As the market rise continues, this brand of financing grows more frequent; the quality of the companies becomes steadily poorer; the prices asked and obtained verge on exorbitant. One fairly dependable sign of the approaching end of a bull swing is the fact that new common stocks of small and nondescript companies are offered at prices somewhat higher than the current level for many medium-sized companies with a long market history. The heedlessness of the public and the willingness of the selling organization to sell whatever may be profitably sold can have only one result - price collapse.
~ Benjamin Graham, dean of the value school