What Sequential shows
SW Sequential checks completed bars in sequence and marks completed stages of a move. An observation such as “price has been rising for a while” gains a specific reference: which comparisons have qualified and which are still developing. It helps identify a part of the chart that deserves closer attention.
Labels for an upward sequence appear above price; those for a downward sequence appear below it. Their position identifies the sequence being studied. It does not, on its own, tell you to open an immediate trade in the opposite direction.
9 and 13 answer different questions
9 · the first stage
A 9 completes the initial consecutive sequence. It says that this stage’s conditions have been met. A pause, a pullback or continued movement may follow; it does not appoint an inevitable reversal.
13 · the next stage
A 13 completes a further count of qualifying bars. Gaps may occur between them. It does not mean “the thirteenth day after a 9”.
The calculation presets include additional checks, deferrals and rules for cancelling unfinished counts. A missing next number is not necessarily a display error: the selected conditions may not have been met.
A clean example: start with the numbers
This window contains sequences above rising price and below falling price. Follow the bars from left to right: where a 9 appears, how far it is from the next completion, and what price does afterwards. Do not imagine an uninterrupted chain of adjacent bars between 9 and 13.
This view keeps the main completions readable. Add full counts and extra lines later, once you understand what each element contributes.
Why price can continue after a 13
In this calculation a 13 appeared above price on 24 June 2024, when the bar closed at 447.67. Twelve subsequent bars later, on 11 July, the close was 454.70, above the original value. This is a specific example of why a completed count cannot automatically be treated as the start of a sustained decline.
Comparing those closes does not mean that there were no intervening pullbacks. One historical window also does not measure the indicator’s overall performance. It helps frame the right question: what did price actually confirm after the label?
Setting up SW Sequential
Choose a calculation preset
The preset selects the rules. For an introduction, choose DEMARK 1997 and keep it consistent when comparing examples.
Keep the main labels
The “Only 9 and 13” display preset selects visible elements. It does not replace the calculation rules.
Add context one element at a time
P identifies an additional first-stage check; 9-13-9 identifies a linked repeat sequence. Risk adds a price reference for further assessment.
Save your workspace
Save the symbol, interval and selected indicators. Zoom and appearance are separate from the calculation preset.
Lower histograms are available when you want to study the developing counts. Two charts can be displayed side by side; a bar represents the day, week or month selected for its chart.
A practical reading sequence
Start with the interval and price direction. Locate the most recent completed sequence and see how many bars have elapsed since it. Compare subsequent prices with nearby previous highs and lows. If Risk is enabled, assess price against that reference under the selected preset.
Keep the calculated label separate from your own decision. Sequential does not choose your acceptable loss, position size or execution time. The platform supports independent study of a loaded snapshot of completed bars.
Questions before you begin
Are 9 and 13 the same signal?
No. They complete different stages. One cannot replace the other simply because both are drawn beside price.
Why did a 13 not follow immediately after a 9?
The next stage counts qualifying bars only, with checks and rules that can change an unfinished sequence. Gaps are normal.
Are quotes continuously streamed?
The workspace uses a loaded snapshot of completed bars. Load the symbol again to refresh its history.
Is this a TradingView script?
This is a separate browser platform with its own workspace. Platform access and access to an individual TradingView script are separate products.
About these examples
The illustrations use the project’s accepted calculations and a history snapshot prepared on 13 October 2026. They are original chart drawings, not screenshots of customer accounts. A readable historical window is shown; the calculation uses the loaded history. Examples explain the tool, not its overall performance.
STUDENT WYCKOFF is an independent platform inspired by Tom DeMark’s publicly published work. These explanations describe the SW implementation on this site, not an official DeMark service.
Published DeMark descriptions · DeMark 9–13 overview · Full guide