The Rounding Bottom Set-Up
A decline that slows, flattens, and turns without ever making a dramatic low, over months rather than weeks — and the old high that ends it.
MadStockAlerts Research · Updated September 4, 2026
What to take away
- There is no single low to point at, and the absence of one is the pattern rather than a problem with it.
- The rim — the price the decline started from — is the level the set-up completes through.
- Volume falling to nothing at the base and returning with price is the shape's own confirmation.
- It takes months. A rounding bottom on a two-week chart is a curve, not a base.
- It is the slowest and one of the more dependable reversals here, and it is unglamorous by construction.
MAD Academy Training Video · 1:24
The base with no bottom
The slowest reversal in the catalogue and one of the most dependable. Why the absence of a dramatic low is the pattern, and what the volume has to do.
This lesson is part of a Stock Alerts + Tools plan.
The shape
A decline gradually loses speed. The down bars get smaller, price goes flat for a stretch with no obvious low, then begins to rise as gradually as it fell. Drawn over months the whole thing is a saucer, symmetric enough that the recovery mirrors the decline.
What is missing is what defines it. There is no capitulation bar, no spike, no violent low — just selling that runs out. That absence is why the pattern needs so much time: replacing a market's holders by attrition takes far longer than doing it in a panic.
- A decline whose down bars are visibly shrinking rather than accelerating.
- A base of weeks with no identifiable single low.
- Volume falling to a fraction of normal at the base, then rising as price does.
- Rough symmetry — a recovery taking about as long as the decline did.
Scroll the chart sideways to see all of it.
Why it forms
Two things have to happen for a decline to end: the people who want to sell have to finish, and somebody else has to want the shares. A capitulation low does both in a week, violently. A rounding bottom does both slowly, and the flat, dead base is the point at which the first group has finished and the second has not yet arrived in size.
The recovery's gradualness is then the second group arriving. Because nobody is in a hurry, price rises at whatever rate steady buying against no supply produces — which is slow, uneventful, and easy to miss, and is exactly why the pattern's reputation is better than its visibility.
Volume is the confirmation the shape supplies about itself. A genuine rounding bottom shows volume declining into the base and expanding with the recovery, which is the market's own record of supply exhausting and demand replacing it. A saucer-shaped price path with flat volume throughout is a drawing rather than a base.
| What to look at | Set-up intact | Set-up failing |
|---|---|---|
| The decline into it | Down bars shrinking as it goes | Down bars widening — still selling |
| Volume at the base | A fraction of normal, then rising with price | Unchanged throughout, or spiking |
| The recovery | Gradual, taking as long as the decline | A sharp spike out of the base |
The price points that define it
A set-up is a shape plus a handful of prices. The shape is what makes it recognisable; the prices are what make it something that can be measured, reviewed afterwards and argued about honestly. These are the levels this one is read from.
| Level | Where it sits | What it tells you |
|---|---|---|
| The rim | The price the decline began from | The reference the set-up completes through, and the price the pattern has been working back toward the whole time. |
| The base | The flat stretch at the bottom, not a single bar | The floor of the reading. It is a zone rather than a level, which is unusual here and is what the shape actually is. |
| The depth | Rim minus the base | What the measured objective is scaled to, and a measure of how far the market had to come back. |
| The volume trough | The quietest stretch of the base | Not a price. It is the pattern's own evidence, and its position should sit near the middle of the saucer rather than at one end. |
Where the set-up completes
- 1The triggerThe set-up completes on a close above the rim. Because the recovery is gradual, the break tends to be undramatic — it arrives after weeks of visible approach rather than out of a tight coil, which makes it easy to identify and easy to dismiss at the same time.
- 2Where the reading stops holdingThe reading stops holding on a close back below the base. Because the base is a zone rather than a price, this is the least crisp invalidation in the catalogue, and the honest way to use it is to take the lowest closes of the flat stretch and treat anything below them as the shape being over.
- 3The measured objectiveThe conventional measured objective adds the depth of the saucer to the rim. These are deep patterns by construction, so the number is usually far away and reached rarely; the rim itself is where the useful information sits.
- 4Through the moveThe convention watches for the pace of the recovery to hold. A rounding bottom that suddenly accelerates into a spike is behaving unlike itself, and the shape's whole argument rests on gradualness — a market that starts moving fast has changed into a different situation, which may be better or worse but is no longer this one.
Each of these describes where a convention puts a level, not what anybody should do at it. Whether a level is worth acting on at all is a question about position size, cost and the rest of a plan, and the answer differs for every account.
How often it follows through
One of the higher bands in this group, because the pattern is hard to fake: it requires months of behaviour rather than a few well-placed bars. The number drops sharply for anything under a few months, which is most of what gets called a rounding bottom.
Read that as a floor rather than an expectation. A set-up that follows through two times in three still leaves one in three that does not, and the one that does not can move further and faster than the two that did. That arithmetic is what position sizing exists to answer, and no pattern improves it.
What this number is not
It is not our record, it is not a forecast for any particular chart, and it is not the rate at which the measured objective is reached — that is always lower. It is a conservative reading of how often a completed rounding bottom kept going before it went back through the level that invalidates it. Base rates move with the market, the timeframe and the exact definition used, and every one of those varies.
What failure looks like
The failure is the roll-over. Price completes the saucer, reaches the rim, and simply stops there — no break, and then a second decline that takes it back down through the base. The tell is almost always volume: a recovery that reaches the old high on less trade than the decline had is a market that drifted back up rather than one that was bought back up.
- Volume stays flat through the recovery instead of building.
- The recovery is much faster than the decline, so the shape is not symmetric.
- Price reaches the rim and stalls there for weeks without clearing it.
Scroll the chart sideways to see all of it.
Seeing it on a live chart
Set the chart to two years and switch to weekly bars. Saucers are invisible on a daily chart of the last three months and obvious on a weekly chart of the last two years, and that is a fact about the timeframe rather than about the market.
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