What it is
The Rounding Top (also called an inverted saucer) is a gradual reversal pattern that forms as an uptrend slowly curves over and transitions into a downtrend. Unlike sharp reversal patterns, the rounding top unfolds over weeks or months, creating a smooth dome shape.
The pattern reflects a slow shift in sentiment — buying pressure gradually weakens while selling pressure gradually increases. There's no dramatic moment of reversal; instead, the transition from bullish to bearish happens in a gentle arc. Think of a ball thrown in the air — it doesn't stop instantly at the top, it smoothly curves over.
The psychology
The Rounding Top shows the gradual exhaustion of a trend. During the left side of the dome, the uptrend is still intact but slowing. Each new high makes less progress than the last. Volume often begins declining as participation wanes.
At the top of the dome, price moves sideways. The advance has stalled but hasn't reversed — buyers and sellers are in temporary balance. This is where institutional distribution often occurs as smart money quietly sells into whatever remaining demand exists.
The right side of the dome shows the acceleration of decline. What started as a slowdown becomes a downturn. Volume may increase as selling pressure mounts. The breakdown below the pattern's neckline (the support level where the dome began) confirms the reversal.
Identification
- 01Gradual dome shape — Price curves smoothly from uptrend to downtrend
- 02Prior uptrend — The left side of the dome must be an advancing market
- 03Symmetry — Left and right sides should roughly mirror each other
- 04Neckline — A support level at the base of the dome
- 05Breakdown — Price breaks below the neckline to confirm
- 01Volume declines at the dome's peak — Confirms fading participation
- 02Volume increases on the right side — Confirms growing selling pressure
- 03Long formation duration — Weeks or months = more significant
- 04Breakdown on high volume — Confirms conviction
- 01Sharp V-shaped top — Rounding tops are gradual, not sudden
- 02No clear neckline — Needs a definable support level
- 03Too few data points — Needs enough candles to show the curve
- 04Very short duration — Pattern requires time to develop
Execution framework
Conservative: Enter short on a break below the neckline with increased volume.
Aggressive: Enter short when price shows weakness in the right side of the arc.
Above the highest point of the rounding top. This is a gradual pattern - if price makes a new high above the dome, the bearish thesis is invalidated.
Measured Move: Height of the pattern (from support to the dome peak) projected downward from the breakdown. T1: 50% of measured move. T2: Full projection. Rounding tops unfold slowly, so be patient.
Minimum 1:2. The wide, gradual structure means stops can be large - adjust position size accordingly.
Context matters
Rounding Tops are among the most reliable reversal patterns because they represent a genuine, gradual shift in supply and demand — not a panic event. Edwards & Magee emphasized their significance, particularly on higher timeframes.
- 01On daily or weekly charts spanning weeks to months
- 02At all-time highs or major resistance zones
- 03Volume declining through the top of the dome
- 04Clear neckline with a clean breakdown
- 05Bearish divergence on RSI across the dome
- 06After an extended bull market
- 01On low timeframes where the shape is noisy
- 02If the pattern develops over just a few candles
- 03Without a clear neckline level
- 04If volume is increasing at the dome peak
- 05In a very strong uptrend that may just be pausing
- 06If the right side doesn't mirror the left
These take time to develop - often weeks or months. The gradual nature makes them easy to miss until it's too late.
Compare the full pattern set
Use the library to compare similar structures before deciding what the chart is actually building.