Market Cycle means a periodic up and down price movement of a market. Every market has cycles to a greater or lesser extent. In stock markets, a market cycle is complete when the Standard & Poor composite index is 15 percent above the lowest point or 15 percent below the highest point.
Additional meaning of Market Cycle:
The stock market cycle is a leading indicator of business cycle. Some industries are countercyclical, as the demand for their products remains relatively constant regardless market circumstances.