A flat floor and a flat ceiling, price bouncing between them again and again — the simplest consolidation shape, and one that genuinely has no built-in bias either way.
Among the first shapes any chartist learns to draw — a support line and a resistance line, both flat, containing price between them.
Unlike an ascending or descending triangle, the landmark text treats the rectangle as genuinely unbiased — the shape itself gives no hint which way it resolves.
Because the boundaries are simple and repeatedly tested, this shape became a natural home for range-trading strategies — buy the floor, sell the ceiling, until it breaks.
Traders today lean on the trend leading into the rectangle for a directional guess, since the box itself refuses to offer one.
Price tests a flat resistance and a flat support at least twice each, bouncing back and forth between them with no clear net direction for a sustained stretch.
An ascending triangle leans bullish; a rectangle genuinely doesn't — both boundaries are flat, so the shape itself provides no directional hint. The prior trend, if any, is the only real clue.
Confirmation is a real close beyond either flat line, ideally with expanding volume. Measure the box's own height and project it again from the breakout point for a rough target.
Price spent roughly five months bouncing between a well-tested floor and ceiling, before finally breaking upward into the final leg of the cycle.
The index traded in a broad, well-defined range for most of 2015, briefly breaking down before recovering — a useful reminder that even a long rectangle can resolve, fail, and resolve again.
Price tests the same resistance three times and the same support twice over two months, then closes above resistance on rising volume. What should you do?
Price wicks briefly above resistance intraday, but closes back inside the box, and volume was unremarkable. Is the rectangle broken?
A rectangle forms after a strong uptrend. A trader assumes it must break upward because "the trend is up." Is that a safe assumption?
A box, tested and tested again, watched tick by tick on the left — and the mark it leaves in the ledger on the right. A break upward, a break downward — and a wick that never really escaped.
A rectangle and a move beyond it. Judge whether it's a genuine, volume-backed close — then call it: trade the direction, or pass (no real break).
The classic error is assuming the prior trend guarantees the breakout direction. The discipline is mechanical: treat the shape as genuinely neutral, and wait for a confirmed, volume-backed close before committing either way.
The simplest shape in this course is also the most honest about what it doesn't know — it genuinely has no opinion which way it breaks. Trade the box while it holds, and let the confirmed close, not your guess, decide the direction.
The dice have no memory.