Common Gaps Sometimes referred to as a trading gap or an area gap, the common gap is usually uneventful. In fact, they can be caused by a stock going ex-dividend when the trading volume is low. These gaps are common (get it?) and usually get filled fairly quickly. "Getting filled" means that the price action at a later time (few days to a few weeks) usually retraces at the least to the last day before the gap. This is also known as closing the gap. Here is a chart of two common gaps that have not been filled for while but now filled up . Notice that after the gap the prices have come down to at least the beginning of the gap? That is called closing or filling the gap. A common gap usually appears in a trading range or congestion area, and reinforces the apparent lack of interest in the stock at that time. Many times this is further exacerbated by low trading volume. Being aware of these types of gaps is good, but doubtful that they will produce a trading opportunities. Brea...
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