Market trend

A market trend is a perceived tendency of financial markets to move in a particular direction over time. These trends are classified as secular for long time frames, primary for medium time frames, and secondary for short time frames. Traders attempt to identify market trends using technical analysis, a framework which characterizes market trends as predictable price tendencies within the market when price reaches support and resistance levels, varying over time.
The terms "bull market" and "bear market" describe upward and downward market trends, respectively, and can be used to describe either the market as a whole or specific sectors and securities. The names perhaps correspond to the fact that a bull attacks by lifting its horns upward, while a bear strikes with its claws in a downward motion.
In a secular bear market, the prevailing trend is "bearish" or downward-moving. An example of a secular bear market occurred in gold between January 1980 to June 1999, culminating with the Brown Bottom. During this period the market gold price fell from a high of $850/oz ($30/g) to a low of $253/oz ($9/g); this was part of the Great Commodities Depression.
A bear market is a general decline in the stock market over a period of time. It is a transition from high investor optimism to widespread investor fear and pessimism. According to The Vanguard Group, "While there's no agreed-upon definition of a bear market, one generally accepted measure is a price decline of 20% or more over at least a two-month period."
A market top (or market high) is usually not a dramatic event. The market has simply reached the highest point that it will, for some time (usually a few years). It is identified retrospectively, as market participants are not aware of it at the time it happens. Thus prices subsequently fall, either slowly or more rapidly.