OPEN-SOURCE SCRIPT
Pre‑Market Cumulative Volume
Description:
This indicator plots the cumulative trading volume for the pre‑market session on intraday charts. It automatically detects when a bar is part of the extended pre‑market period using TradingView’s built‑in session variables, starts a new running total at the first pre‑market bar of each day, and resets at the beginning of regular trading hours. During regular market hours or the post‑market session, the indicator does not display values.
To use this script effectively, ensure extended‑hour data is enabled on the chart, and select an intraday timeframe where pre‑market data is available. The result is a simple yet powerful tool for monitoring cumulative pre‑market activity.
How to use
Add the script to a chart and make sure you are on an intraday timeframe (e.g., 1‑min, 5‑min). Extended‑hour data must be enabled; otherwise session.ispremarket will always be false.
During each pre‑market session, the indicator will reset at the first pre‑market bar and then accumulate the volume of subsequent pre‑market bars.
Outside the pre‑market (regular trading hours and post‑market), the plot outputs na, so it does not draw on those bars.
Customization (optional)
If you want to define your own pre‑market times instead of relying on TradingView’s built‑in session, you can replace the isPreMarket line with a time‑range check. For example, isPreMarket = not na(time(timeframe.period, "0400-0930")) detects bars between 04:00 and 09:30 (U.S. Eastern time). You can parameterize the session string with input.session("0400-0930", "Pre‑Market Session") to let users adjust it.
This indicator plots the cumulative trading volume for the pre‑market session on intraday charts. It automatically detects when a bar is part of the extended pre‑market period using TradingView’s built‑in session variables, starts a new running total at the first pre‑market bar of each day, and resets at the beginning of regular trading hours. During regular market hours or the post‑market session, the indicator does not display values.
To use this script effectively, ensure extended‑hour data is enabled on the chart, and select an intraday timeframe where pre‑market data is available. The result is a simple yet powerful tool for monitoring cumulative pre‑market activity.
How to use
Add the script to a chart and make sure you are on an intraday timeframe (e.g., 1‑min, 5‑min). Extended‑hour data must be enabled; otherwise session.ispremarket will always be false.
During each pre‑market session, the indicator will reset at the first pre‑market bar and then accumulate the volume of subsequent pre‑market bars.
Outside the pre‑market (regular trading hours and post‑market), the plot outputs na, so it does not draw on those bars.
Customization (optional)
If you want to define your own pre‑market times instead of relying on TradingView’s built‑in session, you can replace the isPreMarket line with a time‑range check. For example, isPreMarket = not na(time(timeframe.period, "0400-0930")) detects bars between 04:00 and 09:30 (U.S. Eastern time). You can parameterize the session string with input.session("0400-0930", "Pre‑Market Session") to let users adjust it.
开源脚本
秉承TradingView的精神，该脚本的作者将其开源，以便交易者可以查看和验证其功能。向作者致敬！您可以免费使用该脚本，但请记住，重新发布代码须遵守我们的网站规则。
免责声明
这些信息和出版物并非旨在提供，也不构成TradingView提供或认可的任何形式的财务、投资、交易或其他类型的建议或推荐。请阅读使用条款了解更多信息。
开源脚本
秉承TradingView的精神，该脚本的作者将其开源，以便交易者可以查看和验证其功能。向作者致敬！您可以免费使用该脚本，但请记住，重新发布代码须遵守我们的网站规则。
免责声明
这些信息和出版物并非旨在提供，也不构成TradingView提供或认可的任何形式的财务、投资、交易或其他类型的建议或推荐。请阅读使用条款了解更多信息。