OPEN-SOURCE SCRIPT
Actualizado Nebbia Session Map & HTF Levels
Nebbia Market Sessions & Liquidity Levels is an open-source intraday market-mapping indicator designed to combine session structure, liquidity references, higher-timeframe levels and the US Initial Balance in a single charting tool.
The script is intended primarily for traders who work on lower intraday timeframes and want a clear view of where price is trading relative to important session ranges, historical highs and lows, confirmed swing levels, opening prices and Initial Balance projections.
Market Sessions
The indicator can display the main intraday trading sessions:
Asia
London
New York AM
New York Lunch
New York PM
Each session can be enabled or disabled independently and has customizable hours, colors and transparency.
The first hour of the Asia and London sessions can also be highlighted separately, making it easier to identify their initial range and early-session price development.
Session times use timezone-aware calculations, allowing daylight-saving changes to be handled correctly when IANA timezones such as America/New_York, America/Chicago, Europe/London, Europe/Rome and Asia/Tokyo are selected.
Killzone Pivots
For every enabled killzone, the script can track the session high and low and extend them forward as potential liquidity levels.
These pivots can remain active according to three different expiration rules:
until the end of the trading day;
until the next occurrence of the same session;
until the level is mitigated.
A pivot stops extending once price trades through it.
Alerts can also be enabled for killzone pivot breaks.
Higher-Timeframe Liquidity Levels
Nebbia can display historical liquidity references from several timeframes:
past daily highs and lows;
past weekly highs and lows;
past monthly highs and lows;
two optional confirmed swing-timeframe slots.
The two swing slots are fully configurable. They may be used, for example, for:
4-hour swings;
1-hour swings;
30-minute swings;
or any other supported timeframe.
Swing highs and lows are confirmed only after the selected number of right-side bars has closed, preventing an unconfirmed pivot from being displayed prematurely.
The timeframe name is generated automatically in the label, producing references such as:
4H H
4H L
1H H
30M L
When two swing levels occur at the same price, the higher timeframe takes priority.
Level Confluence
When multiple liquidity references share the same price, Nebbia merges them instead of drawing several overlapping lines.
The hierarchy is:
Monthly → Weekly → Daily → higher swing timeframe → lower swing timeframe
The highest-priority line remains visible, while the label can report the relevant confluence.
Examples:
W LOW 09.06 / 4H L
D HIGH 16.07 / 1H H
M LOW 01.07 / W LOW 07.07
This keeps the chart readable while preserving the information contained in lower-timeframe confirmations.
Active and Mitigated Levels
Active liquidity levels are displayed using the selected active line style.
Once price trades through a level, it can be converted into a mitigated level using a separate broken-line style and transparency.
A dedicated setting allows mitigated levels to be shown or hidden completely.
This means the chart can be configured either to retain historical interaction points or to display only liquidity levels that remain untouched.
Level labels can also be enabled or disabled independently.
High labels are positioned above their level, while low labels are positioned below it.
Current Trading-Day High and Low
An optional developing mode can display the high and low of the current Chicago trading day.
These levels update throughout the session and are treated as provisional rather than as already-confirmed historical levels.
At the beginning of the next trading day, the completed daily range is transferred into the normal historical daily-level logic.
ADR5 Distance Filter
Nebbia includes an optional ADR5 filter, based on the average daily range of the five most recently completed trading days.
The ADR5 value is calculated and frozen at the beginning of each new trading day.
Only levels located within the selected ADR5 distance multiplier are displayed.
This can reduce chart clutter by hiding historical liquidity references that are too far away from current price.
For example:
1.0 displays levels within one ADR5;
1.5 displays levels within one and a half ADR5;
2.0 displays levels within two ADR5.
Opening Prices
The indicator can display the latest opening price for:
Daily Open — 00:00 Rome
Tokyo Open — 09:00 Tokyo
London Open — 08:00 London
US Cash Open — 08:30 Chicago
Each opening price has an independent visibility option, color and editable label text.
Only the latest relevant opening line is retained, preventing older opening levels from unnecessarily accumulating on the chart.
Time Markers and Separators
Optional vertical timestamps can identify:
00:00 Rome;
08:30 Chicago.
Daily, weekly and monthly separators can also be displayed independently.
Optional day-of-week labels may be placed at the top or bottom of the chart, with the possibility of hiding weekend labels.
US Initial Balance
Nebbia includes a dedicated US Initial Balance module based on the first hour of the US cash session:
08:30–09:30 America/Chicago
The Initial Balance can display:
IB High;
IB Low;
50% midpoint;
optional ×2 and ×3 extensions;
optional 50% levels between the main extensions;
a highlighted IB time window;
a tinted area between IB High and IB Low;
optional price labels;
configurable extension direction and line styles.
When lines are extended to the right, they remain active until the beginning of the next trading day’s Initial Balance rather than extending indefinitely.
The script can also calculate statistics from the previous 20 completed Initial Balance sessions.
Customization
Most visual components can be configured independently, including:
session colors and transparency;
swing timeframes and pivot sensitivity;
level colors and widths;
active and mitigated line styles;
label visibility and distance;
opening-price labels;
timestamp styles;
Initial Balance colors, widths and extensions;
timeframe visibility limits;
session-history drawing limits.
Credits
This open-source project was inspired in part by:
ICT Killzones + Pivots [TFO]
by tradeforopp
Full recognition is given to the original author for the concepts and foundation that helped inspire the session and pivot components of this project.
Nebbia Market Sessions & Liquidity Levels is an independent expansion and redesign that adds higher-timeframe liquidity mapping, swing-timeframe slots, confluence management, ADR5 filtering, opening prices, timestamps and a complete US Initial Balance module.
Disclaimer
This indicator is provided for educational and analytical purposes only.
It does not constitute financial advice, investment advice or a recommendation to enter or exit any trade. Historical levels, session ranges, pivots and Initial Balance projections do not guarantee future market behavior.
The script is intended primarily for traders who work on lower intraday timeframes and want a clear view of where price is trading relative to important session ranges, historical highs and lows, confirmed swing levels, opening prices and Initial Balance projections.
Market Sessions
The indicator can display the main intraday trading sessions:
Asia
London
New York AM
New York Lunch
New York PM
Each session can be enabled or disabled independently and has customizable hours, colors and transparency.
The first hour of the Asia and London sessions can also be highlighted separately, making it easier to identify their initial range and early-session price development.
Session times use timezone-aware calculations, allowing daylight-saving changes to be handled correctly when IANA timezones such as America/New_York, America/Chicago, Europe/London, Europe/Rome and Asia/Tokyo are selected.
Killzone Pivots
For every enabled killzone, the script can track the session high and low and extend them forward as potential liquidity levels.
These pivots can remain active according to three different expiration rules:
until the end of the trading day;
until the next occurrence of the same session;
until the level is mitigated.
A pivot stops extending once price trades through it.
Alerts can also be enabled for killzone pivot breaks.
Higher-Timeframe Liquidity Levels
Nebbia can display historical liquidity references from several timeframes:
past daily highs and lows;
past weekly highs and lows;
past monthly highs and lows;
two optional confirmed swing-timeframe slots.
The two swing slots are fully configurable. They may be used, for example, for:
4-hour swings;
1-hour swings;
30-minute swings;
or any other supported timeframe.
Swing highs and lows are confirmed only after the selected number of right-side bars has closed, preventing an unconfirmed pivot from being displayed prematurely.
The timeframe name is generated automatically in the label, producing references such as:
4H H
4H L
1H H
30M L
When two swing levels occur at the same price, the higher timeframe takes priority.
Level Confluence
When multiple liquidity references share the same price, Nebbia merges them instead of drawing several overlapping lines.
The hierarchy is:
Monthly → Weekly → Daily → higher swing timeframe → lower swing timeframe
The highest-priority line remains visible, while the label can report the relevant confluence.
Examples:
W LOW 09.06 / 4H L
D HIGH 16.07 / 1H H
M LOW 01.07 / W LOW 07.07
This keeps the chart readable while preserving the information contained in lower-timeframe confirmations.
Active and Mitigated Levels
Active liquidity levels are displayed using the selected active line style.
Once price trades through a level, it can be converted into a mitigated level using a separate broken-line style and transparency.
A dedicated setting allows mitigated levels to be shown or hidden completely.
This means the chart can be configured either to retain historical interaction points or to display only liquidity levels that remain untouched.
Level labels can also be enabled or disabled independently.
High labels are positioned above their level, while low labels are positioned below it.
Current Trading-Day High and Low
An optional developing mode can display the high and low of the current Chicago trading day.
These levels update throughout the session and are treated as provisional rather than as already-confirmed historical levels.
At the beginning of the next trading day, the completed daily range is transferred into the normal historical daily-level logic.
ADR5 Distance Filter
Nebbia includes an optional ADR5 filter, based on the average daily range of the five most recently completed trading days.
The ADR5 value is calculated and frozen at the beginning of each new trading day.
Only levels located within the selected ADR5 distance multiplier are displayed.
This can reduce chart clutter by hiding historical liquidity references that are too far away from current price.
For example:
1.0 displays levels within one ADR5;
1.5 displays levels within one and a half ADR5;
2.0 displays levels within two ADR5.
Opening Prices
The indicator can display the latest opening price for:
Daily Open — 00:00 Rome
Tokyo Open — 09:00 Tokyo
London Open — 08:00 London
US Cash Open — 08:30 Chicago
Each opening price has an independent visibility option, color and editable label text.
Only the latest relevant opening line is retained, preventing older opening levels from unnecessarily accumulating on the chart.
Time Markers and Separators
Optional vertical timestamps can identify:
00:00 Rome;
08:30 Chicago.
Daily, weekly and monthly separators can also be displayed independently.
Optional day-of-week labels may be placed at the top or bottom of the chart, with the possibility of hiding weekend labels.
US Initial Balance
Nebbia includes a dedicated US Initial Balance module based on the first hour of the US cash session:
08:30–09:30 America/Chicago
The Initial Balance can display:
IB High;
IB Low;
50% midpoint;
optional ×2 and ×3 extensions;
optional 50% levels between the main extensions;
a highlighted IB time window;
a tinted area between IB High and IB Low;
optional price labels;
configurable extension direction and line styles.
When lines are extended to the right, they remain active until the beginning of the next trading day’s Initial Balance rather than extending indefinitely.
The script can also calculate statistics from the previous 20 completed Initial Balance sessions.
Customization
Most visual components can be configured independently, including:
session colors and transparency;
swing timeframes and pivot sensitivity;
level colors and widths;
active and mitigated line styles;
label visibility and distance;
opening-price labels;
timestamp styles;
Initial Balance colors, widths and extensions;
timeframe visibility limits;
session-history drawing limits.
Credits
This open-source project was inspired in part by:
ICT Killzones + Pivots [TFO]
by tradeforopp
Full recognition is given to the original author for the concepts and foundation that helped inspire the session and pivot components of this project.
Nebbia Market Sessions & Liquidity Levels is an independent expansion and redesign that adds higher-timeframe liquidity mapping, swing-timeframe slots, confluence management, ADR5 filtering, opening prices, timestamps and a complete US Initial Balance module.
Disclaimer
This indicator is provided for educational and analytical purposes only.
It does not constitute financial advice, investment advice or a recommendation to enter or exit any trade. Historical levels, session ranges, pivots and Initial Balance projections do not guarantee future market behavior.
Notas de prensa
Added optional historical opening-price levels for Daily, Tokyo, London and US Cash opens. Updated HTF labels to appear uniformly one bar to the right of each level line, with Current Day High/Low labels simplified and shown without dates.Notas de prensa
Added level prices directly to active HTF labels, improved confluence handling, and refined Current Day High/Low priority. Current Day labels now override Monthly, Weekly, and Daily labels, while matching Swing levels are combined into a single label with the price included.Script de código abierto
Fiel al espíritu de TradingView, el creador de este script lo ha convertido en código abierto, para que los traders puedan revisar y verificar su funcionalidad. ¡Enhorabuena al autor! Aunque puede utilizarlo de forma gratuita, recuerde que cualquier republicación del código está sujeta a nuestras Normas internas.
Exención de responsabilidad
La información y las publicaciones no constituyen, ni deben considerarse como, asesoramiento o recomendaciones financieras, de inversión, de trading u otro tipo, proporcionadas o respaldadas por TradingView. Obtenga más información en Condiciones de uso.
Script de código abierto
Fiel al espíritu de TradingView, el creador de este script lo ha convertido en código abierto, para que los traders puedan revisar y verificar su funcionalidad. ¡Enhorabuena al autor! Aunque puede utilizarlo de forma gratuita, recuerde que cualquier republicación del código está sujeta a nuestras Normas internas.
Exención de responsabilidad
La información y las publicaciones no constituyen, ni deben considerarse como, asesoramiento o recomendaciones financieras, de inversión, de trading u otro tipo, proporcionadas o respaldadas por TradingView. Obtenga más información en Condiciones de uso.