OPEN-SOURCE SCRIPT
Aktualisiert BIAS Day ver0.1 - NASDAQ London and New York Session Bias

BIAS Day ver0.1
BIAS Day ver0.1 is an open-source intraday context indicator designed to estimate directional bias separately for the London and New York sessions.
The indicator uses an ICT-style analytical framework based on the completed Asia range, liquidity sweeps, return into the range and Change in State of Delivery confirmation.
It does not provide complete trade setups, entry signals, stop-loss levels or guaranteed price predictions. Its purpose is to provide directional context that traders can combine with their own higher-timeframe analysis, liquidity objectives and Points of Interest.
Core methodology
The script builds the Asia range between 20:00 and 00:00 New York time.
After the Asia range is completed, it monitors whether price:
• trades above the Asia High or below the Asia Low,
• returns inside the completed Asia range,
• produces a completed directional CISD confirmation.
A bullish sequence requires:
1. a liquidity sweep below the Asia Low,
2. a return above the Asia Low,
3. a subsequent bullish CISD confirmation.
A bearish sequence requires:
1. a liquidity sweep above the Asia High,
2. a return below the Asia High,
3. a subsequent bearish CISD confirmation.
When valid bullish and bearish sequences are both present, the script uses the most recent completed confirmation.
If no complete sequence is available, or the confirmations cannot provide a clear direction, the indicator displays NEUTRAL.
London Bias
London Bias is calculated at 03:00 New York time.
The calculation uses only information completed before the bar beginning at 03:00. The London model uses completed 1-hour CISD confirmation.
The London chart label remains visible until 08:30 New York time. The stored London result remains available in the information table after the chart label is removed.
New York Bias at 09:00
The first New York Bias is calculated at 09:00 New York time using information completed through 08:59.
The New York model uses completed 5-minute and 15-minute CISD confirmations.
The result is displayed on the chart and in the information table.
New York Bias update
At 09:50 New York time, the existing New York Bias remains visible.
The label and information table display an UPDATING status while retaining the previously calculated direction. The indicator does not remove the New York label during this update period.
At 10:00 New York time, the script recalculates the New York Bias using information completed through 09:59.
The existing chart label is then updated to show the new 10:00 result. The direction may remain unchanged or change according to the newly completed liquidity and CISD sequence.
The New York label can be hidden manually through the chart-label setting.
Displayed information
The indicator can display:
• the London Bias,
• the New York Bias,
• LONG, SHORT or NEUTRAL direction,
• the detected liquidity and CISD model,
• the expected opposing liquidity objective,
• the UPDATING status before the 10:00 New York recalculation,
• a compact information table.
Chart labels and the information table can be enabled or disabled independently.
Bias interpretation
LONG means that the completed liquidity and CISD sequence supports bullish intraday delivery.
SHORT means that the completed liquidity and CISD sequence supports bearish intraday delivery.
NEUTRAL means that the required sequence has not been completed or that the available information does not provide a clear directional result.
The displayed target represents the opposing side of the completed Asia range:
• H-Asia / BSL for a bullish model,
• L-Asia / SSL for a bearish model.
The displayed target is a contextual liquidity objective, not a guaranteed take-profit level.
Time zone
All session calculations use the America/New_York time zone.
This allows the session schedule to follow New York daylight-saving-time changes without requiring manual seasonal adjustments.
User interface translation
The script currently uses Polish input labels. Their English meanings are:
• Zakres Asia - czas New York: Asia range - New York time
• Minimalne wybicie poziomu - ticki: Minimum level break - ticks
• Pokaż znaczniki BIAS na wykresie: Show BIAS labels on chart
• Pokaż tabelę BIAS: Show BIAS table
• Pozycja tabeli: Table position
• Rozmiar tekstu tabeli: Table text size
• Prawy górny: Top right
• Prawy dolny: Bottom right
• Lewy górny: Top left
• Lewy środek: Middle left
• Mały: Small
• Normalny: Normal
Table headings:
• Sesja: Session
• Model: Model
• Cel: Target
• Aktualizacja: Update
Limitations
This indicator is a contextual analytical tool and not a standalone trading system.
Its calculations depend on the symbol's available market data, the broker or data provider, the chart timeframe and the availability of overnight session data.
Different CFD, futures or index data feeds may produce different Asia ranges, liquidity sweeps and CISD confirmation times.
The script does not guarantee future market direction, profitability, signal accuracy or trading performance.
The indicator should be used together with independent market analysis and appropriate risk management.
This script is an independent implementation inspired by ICT-style liquidity and market-delivery concepts. It is not affiliated with or endorsed by ICT, TTrades, TradingView or any broker.
This publication is provided for analytical and educational purposes only and does not constitute investment advice.
Open-source license
The source code is published under the GPL-3.0 license, as declared in the script source header.
BIAS Day ver0.1 is an open-source intraday context indicator designed to estimate directional bias separately for the London and New York sessions.
The indicator uses an ICT-style analytical framework based on the completed Asia range, liquidity sweeps, return into the range and Change in State of Delivery confirmation.
It does not provide complete trade setups, entry signals, stop-loss levels or guaranteed price predictions. Its purpose is to provide directional context that traders can combine with their own higher-timeframe analysis, liquidity objectives and Points of Interest.
Core methodology
The script builds the Asia range between 20:00 and 00:00 New York time.
After the Asia range is completed, it monitors whether price:
• trades above the Asia High or below the Asia Low,
• returns inside the completed Asia range,
• produces a completed directional CISD confirmation.
A bullish sequence requires:
1. a liquidity sweep below the Asia Low,
2. a return above the Asia Low,
3. a subsequent bullish CISD confirmation.
A bearish sequence requires:
1. a liquidity sweep above the Asia High,
2. a return below the Asia High,
3. a subsequent bearish CISD confirmation.
When valid bullish and bearish sequences are both present, the script uses the most recent completed confirmation.
If no complete sequence is available, or the confirmations cannot provide a clear direction, the indicator displays NEUTRAL.
London Bias
London Bias is calculated at 03:00 New York time.
The calculation uses only information completed before the bar beginning at 03:00. The London model uses completed 1-hour CISD confirmation.
The London chart label remains visible until 08:30 New York time. The stored London result remains available in the information table after the chart label is removed.
New York Bias at 09:00
The first New York Bias is calculated at 09:00 New York time using information completed through 08:59.
The New York model uses completed 5-minute and 15-minute CISD confirmations.
The result is displayed on the chart and in the information table.
New York Bias update
At 09:50 New York time, the existing New York Bias remains visible.
The label and information table display an UPDATING status while retaining the previously calculated direction. The indicator does not remove the New York label during this update period.
At 10:00 New York time, the script recalculates the New York Bias using information completed through 09:59.
The existing chart label is then updated to show the new 10:00 result. The direction may remain unchanged or change according to the newly completed liquidity and CISD sequence.
The New York label can be hidden manually through the chart-label setting.
Displayed information
The indicator can display:
• the London Bias,
• the New York Bias,
• LONG, SHORT or NEUTRAL direction,
• the detected liquidity and CISD model,
• the expected opposing liquidity objective,
• the UPDATING status before the 10:00 New York recalculation,
• a compact information table.
Chart labels and the information table can be enabled or disabled independently.
Bias interpretation
LONG means that the completed liquidity and CISD sequence supports bullish intraday delivery.
SHORT means that the completed liquidity and CISD sequence supports bearish intraday delivery.
NEUTRAL means that the required sequence has not been completed or that the available information does not provide a clear directional result.
The displayed target represents the opposing side of the completed Asia range:
• H-Asia / BSL for a bullish model,
• L-Asia / SSL for a bearish model.
The displayed target is a contextual liquidity objective, not a guaranteed take-profit level.
Time zone
All session calculations use the America/New_York time zone.
This allows the session schedule to follow New York daylight-saving-time changes without requiring manual seasonal adjustments.
User interface translation
The script currently uses Polish input labels. Their English meanings are:
• Zakres Asia - czas New York: Asia range - New York time
• Minimalne wybicie poziomu - ticki: Minimum level break - ticks
• Pokaż znaczniki BIAS na wykresie: Show BIAS labels on chart
• Pokaż tabelę BIAS: Show BIAS table
• Pozycja tabeli: Table position
• Rozmiar tekstu tabeli: Table text size
• Prawy górny: Top right
• Prawy dolny: Bottom right
• Lewy górny: Top left
• Lewy środek: Middle left
• Mały: Small
• Normalny: Normal
Table headings:
• Sesja: Session
• Model: Model
• Cel: Target
• Aktualizacja: Update
Limitations
This indicator is a contextual analytical tool and not a standalone trading system.
Its calculations depend on the symbol's available market data, the broker or data provider, the chart timeframe and the availability of overnight session data.
Different CFD, futures or index data feeds may produce different Asia ranges, liquidity sweeps and CISD confirmation times.
The script does not guarantee future market direction, profitability, signal accuracy or trading performance.
The indicator should be used together with independent market analysis and appropriate risk management.
This script is an independent implementation inspired by ICT-style liquidity and market-delivery concepts. It is not affiliated with or endorsed by ICT, TTrades, TradingView or any broker.
This publication is provided for analytical and educational purposes only and does not constitute investment advice.
Open-source license
The source code is published under the GPL-3.0 license, as declared in the script source header.
Versionshinweise
### Target Calculation UpdateThe target-selection logic has been revised to prevent already-taken liquidity levels from remaining active as valid objectives.
The updated priority is:
1. Nearest untaken Asia or London liquidity level.
2. Previous Day High or Previous Day Low.
3. Nearest active confirmed 1-hour swing level.
For a bearish bias, the indicator now searches for:
* the nearest untaken Asia Low or London Low below current price,
* then PDL,
* then the nearest active 1H swing low below current price.
For a bullish bias, the indicator now searches for:
* the nearest untaken Asia High or London High above current price,
* then PDH,
* then the nearest active 1H swing high above current price.
Once a liquidity level is taken, it is removed from the active target list and the target is updated automatically without changing the existing session bias.
Open-source Skript
Ganz im Sinne von TradingView hat dieser Autor sein/ihr Script als Open-Source veröffentlicht. Auf diese Weise können nun auch andere Trader das Script rezensieren und die Funktionalität überprüfen. Vielen Dank an den Autor! Sie können das Script kostenlos verwenden, aber eine Wiederveröffentlichung des Codes unterliegt unseren Hausregeln.
Haftungsausschluss
Die Informationen und Veröffentlichungen sind nicht als Finanz-, Anlage-, Handels- oder andere Arten von Ratschlägen oder Empfehlungen gedacht, die von TradingView bereitgestellt oder gebilligt werden, und stellen diese nicht dar. Lesen Sie mehr in den Nutzungsbedingungen.
Open-source Skript
Ganz im Sinne von TradingView hat dieser Autor sein/ihr Script als Open-Source veröffentlicht. Auf diese Weise können nun auch andere Trader das Script rezensieren und die Funktionalität überprüfen. Vielen Dank an den Autor! Sie können das Script kostenlos verwenden, aber eine Wiederveröffentlichung des Codes unterliegt unseren Hausregeln.
Haftungsausschluss
Die Informationen und Veröffentlichungen sind nicht als Finanz-, Anlage-, Handels- oder andere Arten von Ratschlägen oder Empfehlungen gedacht, die von TradingView bereitgestellt oder gebilligt werden, und stellen diese nicht dar. Lesen Sie mehr in den Nutzungsbedingungen.