DecisionPoint Volume Swenlin Trading Oscillator
Jun 25, 2015

The DecisionPoint Volume Swenlin Trading Oscillator indicator tracks short-term market momentum by analyzing advancing and declining volume to identify potential overbought or oversold conditions. It serves as a secondary confirmation tool alongside breadth indicators to pinpoint short-term market tops and bottoms through volume-based divergences.
Usage
The Usage section describes how the script can be used to gauge market internal strength. Traders typically look for extreme readings in the oscillator to identify potential exhaustion in a current trend. When the oscillator reaches high positive values, it suggests a short-term peak may be forming; conversely, deep negative values suggest a short-term bottom.
The script provides several market modes:
- Market Selection: Users can choose between NYSE, NASDAQ, AMEX, or a combined average of all three major exchanges to see a broad view of market participation.
- Divergence Analysis: By comparing the movement of the Volume Swenlin Trading Oscillator (VSTO) with price action or the Breadth Swenlin Trading Oscillator (BSTO), traders can spot divergences. For example, if prices make a new high but the VSTO fails to do so, it may indicate weakening buying pressure.
- Histogram Interpretation: The optional histogram visualizes the rate of change and direction, helping to identify when volume momentum is accelerating or decelerating.
Details
The DecisionPoint Volume Swenlin Trading Oscillator is constructed by calculating the difference between advancing and declining volume, normalized by the total volume (Advancing + Declining). This ratio is then smoothed using an Exponential Moving Average (EMA) followed by a Simple Moving Average (SMA) to reduce noise and provide a clearer trend line.
The calculation follows these steps:
- Calculate the raw volume ratio: (Advancing Volume - Declining Volume) / (Advancing Volume + Declining Volume).
- Multiply the result by 1000 to scale the values for better visibility.
- Apply a 4-period EMA to the scaled value.
- Apply a 5-period SMA to the resulting EMA to create the final oscillator value.
This specific smoothing process (4-period EMA and 5-period SMA) is the standard formula for the Swenlin Trading Oscillator, designed specifically for short-term swing identification.
Settings
- Market: Selects the data source for advancing and declining volume. Options include "Combined (AMEX/NASD/NYSE)", "NYSE", "NASDAQ", "AMEX", or "CUSTOM".
- CUSTOM: Advancing Volume Symbol: If "CUSTOM" is selected in the Market dropdown, this input defines the ticker used for advancing volume.
- CUSTOM: Declining Volume Symbol: If "CUSTOM" is selected in the Market dropdown, this input defines the ticker used for declining volume.
- Show Histo: Toggles the visibility of the color-coded histogram behind the oscillator line.
FAQ
How do I interpret the histogram colors? The histogram turns green when the oscillator is above zero and rising, and red when it is below zero and falling. Orange indicates a contraction or a move back toward the zero line, suggesting a potential change in momentum.
What is the difference between this and the Breadth STO? The Breadth version uses the number of advancing and declining issues (count of stocks), while this Volume version uses the actual trading volume. Using both can provide a more comprehensive view of market internals.
How can I access this indicator? You can get access on the LuxAlgo Library for charting platforms like TradingView, MetaTrader (MT4/MT5), and NinjaTrader for free.
Trading & investing are risky and many will lose money in connection with trading and investing activities. All content on this site is not intended to, and should not be, construed as financial advice. Decisions to buy, sell, hold or trade in securities, commodities and other investments involve risk and are best made based on the advice of qualified financial professionals. Past performance does not guarantee future results.
Hypothetical or Simulated performance results have certain limitations. Unlike an actual performance record, simulated results do not represent actual trading. Also, since the trades have not been executed, the results may have under-or-over compensated for the impact, if any, of certain market factors, including, but not limited to, lack of liquidity. Simulated trading programs in general are designed with the benefit of hindsight, and are based on historical information. No representation is being made that any account will or is likely to achieve profit or losses similar to those shown.
Testimonials appearing on this website may not be representative of other clients or customers and is not a guarantee of future performance or success.
As a provider of technical analysis tools and strategies, we do not have access to the personal trading accounts or brokerage statements of our customers. As a result, we have no reason to believe our customers perform better or worse than traders as a whole based on any content, tool, or platform feature we provide.
Charts used on this site are by TradingView in which the majority of our technical indicators are built on. TradingView® is a registered trademark of TradingView, Inc. www.TradingView.com TradingView® has no affiliation with the owner, developer, or provider of the Services described herein.
Market data is provided by CBOE, CME Group, BarChart, Massive, CoinAPI. Select U.S. equities data is provided through Massive. CBOE BZX real-time U.S. equities data is licensed from CBOE and provided through BarChart. Real-time futures data is licensed from CME Group and provided through BarChart. Select cryptocurrency data, including major coins, is provided through CoinAPI. All data is provided “as is” and should be verified independently for trading purposes.
This does not represent our full Disclaimer. Please read our full disclaimer.
© 2026 LuxAlgo Global, LLC.

