Define the boundary before evaluating the move
A boundary could be an earlier high, a support area, a trendline or the edge of a formation. Specify whether the rule uses any trade beyond the boundary, a completed close, a minimum distance or several completed intervals. These are different tests.
Suppose a fictional ceiling is $120. The next session reaches $121.20 but closes at $119.60. An intraday-high rule registers a crossing; a close-above-$120 rule does not. Neither reader should silently change the definition after seeing the outcome.
Failure needs a rule and a window
A label such as false breakout depends on what happens after an initial event. Specify what constitutes failure and how long the test lasts. A brief return to the boundary, a close back inside and a large reversal are not interchangeable observations.
Under an original exercise rule, a close above $120 is followed for three sessions. Any close below $120 in that window counts as failure. Closes of $121, $122 and $119 produce an initial breakout and a failure. A fourth-session decline would not satisfy that particular three-session test.
Additional evidence changes timing
A retest, a later close or a comparable volume observation can be required before describing follow-through. Waiting changes the information set and the time at which a decision could have been made. It cannot remove uncertainty from subsequent prices.
Imagine the first close above the boundary is $121 and a second qualifying close is $124. A rule requiring both could first be evaluated at $124. Describing the later evidence while assuming execution at $121 gives a misleading picture of what was available at the time.
Keep both successes and failures
Evaluate a precise rule across an appropriate history, with information timing and costs documented. A chart selected because it displays a beautiful escape from a range is an illustration, not an estimate of the probability that another breakout will continue.
The learning question is what observation would support or weaken the interpretation. Record the original boundary, interval, confirmation requirement and failure condition. Then compare outcomes consistently. An apparent gap beyond the boundary also does not guarantee that an order could have executed at the boundary itself.
Price first closes above resistance today. Can a reader already know that this will be a false breakout?
Show the explanation
No. A later failure has not occurred yet. The reader can define the failure rule now and evaluate subsequent observations without relabeling the past.
Sources and editorial notes
Original explanations and hypothetical examples prepared with AI assistance. Primary references checked October 16, 2026. Numerical examples are hypothetical unless explicitly identified otherwise.
- Fidelity: Support and resistance
Support and resistance as historical demand/supply reference areas. Academy numerical zones, test rules and failure scenarios are original illustrations, not measured evidence.
- Charles Schwab: How to Read Stock Charts and Trading Patterns
Line, OHLC bar and candle representations; observation intervals; false signals and limits of technical analysis. Original settings exercises and failure rules are Academy examples.