A price gap found on a price chart for an asset. These gaps are brought about by normal market forces and, as the name implies, are very common. They are represented graphically by a non-linear jump or drop from one point on the chart to another point. In general, there is no major event that precedes this type of gap. Common gaps generally get filled relatively quickly (usually within a couple of days) when compared to other types of gaps. Common gaps are also known as "area gaps" or "trading gaps".