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What are “preferred” stocks? How are they different from normal (common) stocks?
I know this has already been answered and I know its frowned upon to dump a link, however, when it comes to investments it's best to get data from an 'official' source to avoid misinterpretations and personal opinions.  The attached pdf is from the S&P and provides detailed, but not overwhelming, information regarding the types of preferreds, the risks & common terminology: http://us.spindices.com/documents/education/practice-essentials-us-preferreds.pdf Page 1: PREFERRED SECURITIES DEFINED  Borrowing from two worlds, a preferred security has both equity and   fixed income  characteristics.  As such, the preferred structure   offers a flexible approach to structuring a preferred offering for an   issuer.   Companies have many reasons to issue preferred securities.  Financial   institutions, for  example, need to raise capital.  Many times they   will use the preferred market because of  any required regulatory   requirements, in addition to cost considerations.  Banks and    financial institutions are required to maintain a certain level of   Tier 1 capital—which  includes common equity and perpetual   non-cumulative preferreds—as protection against  the bank’s   liabilities.  Issuing more common equity comes at a cost, including   the dilution  of existing shares, which a company may not want to   bear.  Preferred securities are a  cheaper alternative approach to   raising the capital.  Companies often use preferred stock for strategic reasons.  Some of   these uses include: