Define the rectangle before studying its exit: context, boundaries, volume and invalidation belong in the same written research record.
What defines the rectangle
A rectangle oscillates between an approximately horizontal resistance zone and an approximately horizontal support zone. Separate reactions should test each side. Draw zones with a consistent tolerance rather than pretending several nearby extremes are exactly equal. The distance between the boundaries gives the height used in a measured illustration.
The preceding trend and duration
A rectangle can interrupt an advance or a decline, or occupy a longer base. It is a trading range before its exit. A series of closes in the middle of it is different from a break beyond a boundary, even if one session has unusually high volume.
Use the same chart interval for every touch. A formation visible on daily candles can contain shorter swings on an intraday chart; those are separate samples. Count the duration and record the touches used, so another reader can reconstruct the boundaries.
A close beyond the boundary
The upward example closes through the upper boundary. The opposite scenario requires a close below the lower boundary. Keep those two rules separate. A retest of the broken boundary can help describe what happened next, but a retest is not required for every breakout.
| Measurement | Value |
|---|---|
| Event session (leftmost bar is session 1) | 45 |
| Boundary at the exit | 42.00 |
| Close of the exit session | 43.05 |
| Distance beyond the boundary | 2.50% |
| Initial formation height | 4.00 |
| Conventional projected level | 46.00 |
Illustrative objective = 42.00 + 4.00 = 46.00The projection is a geometric reference. It is not a price forecast, a probability or an instruction to hold until that level. Describe what would contradict the premise before comparing the potential distance with the risk.
Volume through the formation
Compare volume with this stock’s own recent activity and inspect the bars on which it expands. Contracting activity during a pause and expansion at its exit can support a conventional reading, but volume does not choose the direction. A large session may reflect an event, rebalancing or an isolated trade.
| Measure | Hypothetical value |
|---|---|
| Average, first 5 sessions of the rectangle | 95.6 |
| Average, last 5 sessions before the breakout | 65.6 |
| Breakout session | 230.0 |
| Breakout ÷ 20-session average | 2.76 |
The displayed relative-volume calculation divides the event’s volume by the average of the 20 sessions ending with that event; it includes the event itself. It differs from a comparison with the prior 20 sessions and from an intraday comparison at the same clock time.
When the conventional reading fails
The failure chart makes a false break above 64, returns below the ceiling and ultimately breaches the floor at 60. That return converts the earlier breakout into a failed range exit. A plan needs to distinguish a small retest of resistance from a complete traversal of the old range.
Separate this shape from nearby patterns
An ascending triangle has rising lows; a descending triangle has falling highs. In a rectangle, neither line trends toward the other. A channel with two sloping parallel lines belongs to a different geometry.
Record a reproducible chart observation
A useful chart record includes the unsuccessful cases. Define your rules before collecting examples and retain the same price scale, adjustment basis and candle interval throughout the sample.
- Record the preceding swing direction, formation duration and each boundary touch.
- Write the exact close-based confirmation and the opposite boundary or swing that invalidates it.
- Compare event volume with its named denominator, and review both resolving and failed drawings.
- Check whether a scheduled event, such as an earnings report, falls inside the window you are studying; using earnings dates in research covers where such dates come from.
- Inspect the same stock on the Symbol Analysis guide, then record your observations in a trading journal.
These guides teach manual chart interpretation. A near-high or range screen lists candidates to inspect; it does not identify this formation.
Continue with
- Support, resistance and trendlinesHow horizontal levels and sloping lines are drawn and tested.
- Breakouts and pullbacksWhat a close beyond a level shows, and how retests are read.
- Put stock volume in contextCompare a session’s volume with the same stock’s usual activity.
- Candlestick patternsSingle- and multi-session candle shapes read alongside chart patterns.
- Stop-loss and profit targetsWhere invalidation levels and objectives fit in a written plan.
Sources
Read our data and methodology notes for calculation context. This guide explains research tools and observations. It does not recommend a trade or investment.