Roof, Inverted

Core idea

An inverted roof is a sharply pointed V-bottom: a steep decline meets an equally steep recovery at a single-bar trough. Like its bearish twin, the defining feature is slope symmetry — the right flank's gradient mirrors the left's, and the two flanks span similar durations. The pattern is a reversal: the prior trend was down, the subsequent trend is up, and the transition occurs in 1-3 bars at the bottom.

Inverted roofs are most often the chart-pattern fingerprint of capitulation. Selling pressure crescendos into a final flush — typically on a news-driven gap, a forced-liquidation event, or simply the exhaustion of weak holders — and the buyers who were waiting in cash step in en masse the moment supply runs out. The same sharp-symmetric structure that marks a buying climax in a roof marks a selling climax in an inverted roof.

Why it matters

Inverted roofs are some of the most generous setups in technical analysis when caught correctly: the absolute low is bought, the recovery is fast, and the risk (a return to the trough) is well-defined. They are also among the hardest to identify in real time, because the trough is a single bar and the rebound looks like just another dead-cat bounce until it doesn't.

The practical value is twofold. First, recognising the left side of a forming inverted roof — accelerating decline on rising volume into a known support level — lets a trader prepare a buy-stop above the recent high rather than try to catch the falling knife. Second, post-confirmation, the pattern offers a high-conviction long entry with a tight stop just below the trough.

Capitulation, mechanically

A capitulation flush is a coordination event. Margin calls force one set of holders to sell; that selling triggers stop-losses for another set; the resulting cascade prints panic lows on huge volume. Crucially, this exhausts the supply: anyone who had to sell already has. The next bar's open is met with no offers, and price rebounds vertically. The inverted-roof shape is the visual signature of that supply vacuum.

Key takeaways

Mental model

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Practical application

Capitalising on capitulation

Reading the rebound

Knowing when not to trust it

Example

A mid-cap retail stock has been declining for two months, dropping from $90 to $60 on a sector rotation. Over five days the decline accelerates: $60, $56, $51, $46, $40 — a near-vertical drop on volume escalating from 1M to 6M shares. On day six the stock gaps down to $35, briefly touches $33 intraday, then closes at $39 on 9M shares. Capitulation.

The next session opens at $41 and closes at $44. A trader had placed a buy-stop at $40 (above the prior bar's high of $39); the order filled at $41 on the open.

• Entry: $41.
• Stop: $32 (just below the intraday trough).
• Target: prior consolidation around $55 — roughly a 65% retrace of the $25 decline.

Over the next eight sessions price climbs to $54 on declining-but-still-elevated volume. The trader exits near target for a ~32% gain in two weeks.

The full inverted-roof structure spans 13 trading days: five down, eight up — slightly asymmetric in time but with similar percentage moves on each side. Had the rebound stalled at $43 and rolled back below $33, the stop would have triggered for a controlled ~22% loss on the position. The V-shape's gift is that the invalidation level is unambiguous.

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