OPEN-SOURCE SCRIPT
Updated Market Internals: Volume

The indicator plots the total volume of the NYSE and NASDAQ exchanges and identifies periods with significant asymmetry between Up Volume and Down Volume. It can be used as an additional tool to confirm broad market sentiment.
Chart shows Total Volume (TVOL) bars for SPY daily chart. Green bars for UVOL>>DVOL, Red for DVOL>>UVOL. Neutral bars are gray. Blue line shows median TVOL.
Rationale:
Up Volume (UVOL) and Down Volume (DVOL) represent the total volume of stocks that have increased or decreased in price, respectively, compared to the previous session's closing price. The magnitude of the price change is irrelevant.
When UVOL is significantly higher than DVOL, it indicates a prevailing buying sentiment in the broad market. Conversely, when DVOL is higher, it signals prevailing selling sentiment.
Occasionally, the UVOL/DVOL (VOLD) ratio may be misaligned with the movement of the S&P index. The picture below illustrates an example of a day when the S&P declined, yet the UVOL was twice larger than DVOL. Such a divergence can suggest that the S&P was pulled down by a decline in a few large-cap stocks, while the broader market remained positive. In this case, the divergence led to a continuation of the rally.

Thus, VOLD, when combined with volume analysis, can be an effective tool for confirming market trends.
Parameters:
VOLD Ratio – minimum ratio of UVOL/DVOL or DVOL/UVOL. Indicator will color code volume columns when condition is true (“green” means buying; “red” selling).
Median Length – number of periods to calculate median TVOL.
Show Divergencies – indicator marks divergencies between price and volume sentiments on the main chart. Only works for SPY chart.
Users can also choose which exchanges (NASDAQ/NYSE) to use for volume calculation.
Notes:
Disclaimer
This indicator should not be used as a standalone tool to make trading decisions but only in conjunction with other technical analysis methods.
Chart shows Total Volume (TVOL) bars for SPY daily chart. Green bars for UVOL>>DVOL, Red for DVOL>>UVOL. Neutral bars are gray. Blue line shows median TVOL.
Rationale:
Up Volume (UVOL) and Down Volume (DVOL) represent the total volume of stocks that have increased or decreased in price, respectively, compared to the previous session's closing price. The magnitude of the price change is irrelevant.
When UVOL is significantly higher than DVOL, it indicates a prevailing buying sentiment in the broad market. Conversely, when DVOL is higher, it signals prevailing selling sentiment.
Occasionally, the UVOL/DVOL (VOLD) ratio may be misaligned with the movement of the S&P index. The picture below illustrates an example of a day when the S&P declined, yet the UVOL was twice larger than DVOL. Such a divergence can suggest that the S&P was pulled down by a decline in a few large-cap stocks, while the broader market remained positive. In this case, the divergence led to a continuation of the rally.
Thus, VOLD, when combined with volume analysis, can be an effective tool for confirming market trends.
Parameters:
VOLD Ratio – minimum ratio of UVOL/DVOL or DVOL/UVOL. Indicator will color code volume columns when condition is true (“green” means buying; “red” selling).
Median Length – number of periods to calculate median TVOL.
Show Divergencies – indicator marks divergencies between price and volume sentiments on the main chart. Only works for SPY chart.
Users can also choose which exchanges (NASDAQ/NYSE) to use for volume calculation.
Notes:
- Volume is shown in millions of contracts
- Indicator should be used on the daily or higher timeframes. It won't work properly on the intraday charts
Disclaimer
This indicator should not be used as a standalone tool to make trading decisions but only in conjunction with other technical analysis methods.
Release Notes
UPD 1.2: in the intraday view it is now possible to switch between cummulative and periodic volume (TVOL) Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
For quick access on a chart, add this script to your favorites — learn more here.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
For quick access on a chart, add this script to your favorites — learn more here.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.