A weak high should not be confused with a poor highA poor high is one which lacks excess and is the opposite of an excess high. A poor high will have less than two TPO's of excess at the top of a daily range with at least 2-3 columns of TPO's lining up to form a flat looking top. It indicates that there are short term or weak handed longs at that high of day area. We know this because every time prices rise to the top, they get sold quickly, thus forming the poor high.
The poor high has two forward looking indications. The first is that prices should back away from the poor high as there are a number of longs trapped at poor location. The second is that if the next day or in some subsequent session, the poor high is revisited, then the odds are strong that it will break and move higher. This is called repair as it repairs the structur.... The latter speaks to a deficiency in structure and the former deals with the location of the high. A weak high is formed when a market rises and reverses right at a specific point which is often a technical or profile nuance. Some examples would be prior intraday highs, the upper extreme of a value areaA range where approximately 70% of the prior days volume traded. The range is derived from one standard deviation on either side of the mean which is roughly 70%. See: Market Profile, the prior day’s settlement, or the current day’s open. In each case, the location is a mechanical and visual reference that is used by short term traders as an entry point. The high is deemed weak because it can be taken easily when retested due to the short term nature of the sellers who initiated their positions at that level.