There is a lot of discussion as to what constitutes a gap. Is it measured to the prior day’s close, or to the prior day’s high or low. Here at ShadowTrader we believe that it is always and only to a prior day’s high or low, thus creating a true gap or space on the chart between one day and the next. Thus a true gap is one that has price opening completely outside of the prior day’s range (either above the high or below the low) and anything else is just a gap that has far less import. As a gap is a “reordering of thinking”, only a true gap really changes the tone and creates opportunity to trade early rather than later.