Grade the rectangle breakout before you trade the box top.
Upload a chart with a rectangle forming inside an uptrend and get a read on the flat horizontal ceiling and the flat horizontal floor that price keeps tagging, the touches of each edge, the with-trend break up through the top of the box, the volume behind the move, and a full trade plan, so a clean two-sided box breaking with the trend and a sloppy one do not get the same benefit of the doubt.
BOX TOP
The flat horizontal ceiling, as drawn on your chart
BOX FLOOR
The flat horizontal floor underneath, tested two or more times
VOLUME
Whether volume picked up on the break of the box top
9 EMA
The uptrend context the rectangle is pausing inside of
Grade
B+
Entry
$3.87
Stop
$3.75
Target
$4.24
Sample readout
SNBR 1m bull flag pullback: strong opening momentum, lighter-volume consolidation, and a late breakout attempt with the 3.89 price marker near the current candle.
Quick answer
What is a rectangle breakout, and can AI grade it?
A rectangle breakout is a bullish continuation: an existing uptrend runs up, then price pauses and goes sideways inside a rectangle, a two-sided box with a flat horizontal ceiling AND a flat horizontal floor that both get tested two or more times, before price breaks up through the top of the box to resume the move. The two-sided box is the defining feature: unlike a flat top breakout, where only the ceiling is flat and the lows can drift, a rectangle needs a flat top and a flat bottom, and unlike a fade or range-bound oscillation, the trade here is the long up break with the prior trend, not buying the floor or shorting the ceiling. SnapPChart grades that long, with-trend up break from the chart you upload: it reads the flat ceiling, the flat floor, how many times each edge was tested, the box width, the breakout level, the 9 and 20 EMA and uptrend context, and the volume behind the move, then returns a setup grade, an entry on the break of the box top, a structural stop back inside the box or under the broken ceiling once it flips to support, multi-target exits, and the bear case. It reads the image you upload, not a live feed, and it does not draw the box for you, scan or auto-detect setups, watch the tape, or predict the next candle. You mark the rectangle, screenshot the chart, and upload it, and the same checklist runs every time so a clean two-sided box breaking with the trend and a sloppy one-sided drift get judged the same way.
What the AI Returns From a Screenshot
Use the output as a repeatable pre-trade checkpoint, not a prediction.
A-F Setup Grade
See whether the setup has enough pattern clarity, momentum, volume, and reward to justify the risk.
Entry, Stop, Targets
Get a structured trade plan with entry zone, invalidation level, targets, and risk/reward.
Screenshot-Based Read
Use charts from TradingView, Webull, ThinkOrSwim, MetaTrader, Robinhood, or any broker.
Risk Notes First
The analysis flags extension, messy chop, weak retests, thin reward, and conflicting indicators.
Workflow
Use it as a quality check on the rectangle
Plenty of rectangle breakouts fail on a premature or low-volume break, or when the box is not actually two-sided, the floor drifts, the ceiling is uneven, or there was no prior uptrend for the break to continue. SnapPChart gives you a consistent read on whether this rectangle is a clean two-sided box breaking with the trend before you trade the up break.
- Mark the flat ceiling across the equal highs and the flat floor across the equal lows, then screenshot the box as price coils inside it
- Check that both edges are genuinely flat and each was tested two or more times, not a one-sided line with a drifting floor
- Confirm the rectangle sits inside an uptrend, so the break up through the top is a with-trend continuation
- Confirm volume is picking up on the break of the box top instead of leaking out early
- Read the 9 EMA and 20 EMA and trend context the box is sitting inside of
- Re-grade after the break to see if the box top flipped to support or it was a fakeout back into the box, and skip the trade when the grade flags a premature break, a one-sided box, or no clear prior uptrend
Head to head
SnapPChart vs a general AI chat assistant for rectangle breakout setups
A general AI tool can tell you a chart looks like a rectangle, but it will not judge whether both the ceiling and the floor are genuinely flat and tested two or more times, or whether the up break is with the prior trend, to the same standard twice. SnapPChart checks the flat top of the box, the flat floor, the repeated touches of each, the uptrend context, the with-trend up break, and the volume the same way on every screenshot you upload.
| Feature | SnapPChart | General AI chat assistant |
|---|---|---|
| Grades the two-sided rectangle you marked on the screenshot | Yes, every upload | Inconsistent |
| Checks both the flat ceiling and the flat floor of the box | From the image | Varies by prompt |
| Confirms the up break is with the prior uptrend, not a fade or a downside break | Every grade | Rarely |
| Flags a premature or low-volume break of the box top | Every bear case | Rarely flagged |
| Entry, stop, targets off the break of the box top | Yes | Prompting required |
| Same criteria on every rectangle | Fixed methodology | Varies by session |
Learn the rectangle breakout setup
Use these guides to understand what makes a rectangle breakout grade well, so you take the read instead of the output blindly.
Rectangle Breakout AI FAQ
How SnapPChart grades a rectangle breakout from your screenshot.
How does the AI grade a rectangle breakout?
It reads the flat ceiling and the flat floor you marked, how many times price tested each edge, and the box width and consolidation between them. It factors the with-trend break up through the box top, the 9 and 20 EMA position, the uptrend context, and the volume behind the move into the grade, then returns a setup grade, an entry on the break of the box top, a structural stop back inside the box or under the broken ceiling once it flips to support, and targets. A clean two-sided box with equal highs and equal lows pausing inside an uptrend, breaking up with-trend on building volume, grades higher than one where one edge drifts or the break comes on thin volume.
How is a rectangle breakout different from a flat top breakout or an ascending triangle?
All three break up through a flat ceiling, but the floor is what separates them. A rectangle needs a two-sided box: a flat horizontal ceiling AND a flat horizontal floor, both tested two or more times, so the lows are sideways and level, not drifting. A flat top breakout only needs the flat ceiling, the lows underneath can drift up or down in a loose base. An ascending triangle needs the flat ceiling with a rising trendline of higher lows compressing into the apex. SnapPChart grades each on the structure you mark, and for the rectangle it specifically factors the flat floor and the box width into the grade, so the two-sided box is what it is reading, not just the top.
Does it trade the rectangle in both directions, or only the breakout?
Only the long, with-trend up break. SnapPChart grades the rectangle as a pause inside an established uptrend that resumes up through the top of the box, so it is not a range-bound, fade-the-edges, or bi-directional tool. It does not grade buying the floor, shorting the ceiling, or a downside break of the box as a setup. The honest frame is a continuation of the prior uptrend on the up break, and that is what the grade and the trade plan are built around.
Does SnapPChart auto-detect or scan for rectangles, or read live price?
No. It does not scan a feed for rectangles, draw the box for you, watch the tape, or predict the next candle. You identify and mark the flat ceiling across the equal highs and the flat floor across the equal lows, then screenshot and upload that chart, and the AI grades the structure it can see in the image: the two flat edges, the touches of each, the box width, the breakout level, the EMAs and uptrend context, and the volume. The grade reflects the picture you give it.
Can it tell a real rectangle breakout from a fake one?
It flags the weak-structure risk in the bear case. If the box is not genuinely two-sided, the floor drifts, the ceiling is uneven, there is no clear prior uptrend for the break to continue, or price broke out early on thin volume, the grade drops and the trade plan calls out that the continuation thesis is weaker. A clean two-sided box with equal highs and equal lows capping an uptrend, breaking up on building volume, grades better than a one-sided drift dressed up as a rectangle.
What should be on the chart before I screenshot it?
Make sure both the flat ceiling line across the equal highs and the flat floor line across the equal lows are visible, with the candles, timeframe, price scale, and volume showing. Drawing both edges of the box helps, since the read is about whether the top and the bottom are both genuinely flat and tested inside an uptrend. The 9 EMA and 20 EMA add the trend context the grade factors in. The more of the box, the prior uptrend, and the breakout area that is visible in the image, the more complete the read.
Is there a free trial for rectangle breakout grading?
Yes. New users get two lifetime chart analyses. The first shows the full output so you can see exactly what the rectangle breakout grade returns; the second is gated to show what the paid product adds. No credit card required.
Explore more AI chart analysis pages
Grade setups across more markets, platforms, and strategies with the same AI workflow.
Grade the rectangle before you trade the box top.
Mark the flat ceiling and the flat floor of the box, screenshot the chart, and upload it from the homepage for a structured read on the with-trend continuation setup.
Grade a Rectangle Breakout Free