Home                           

 Try Investor/RT             

 Investor/RT Tour           

 Getting Started              

 What's New                  

 Testimonials                 



MASTER INDEX
  SEARCH
  CHARTS
   MAIN TOOLBAR
   SETTING PREFERENCES
   TECHNICAL INDICATORS
   WHAT'S NEW
  ALARMS
  BACKTESTING
  CONFIRMING TRADES
   CUSTOM COLUMNS
  CUSTOM INDICATORS
  CUSTOM INSTRUMENTS
  CUSTOM PRICES
  DATA FEEDS
   DATABASE
   DOWNLOADING DATA
   FEED STATUS
   HEARTBEAT
   HELP
   MULTI-LINKING
   MULTI-PERIODICITY
  INSTRUMENT SETUP
  NASDAQ LEVEL II
  NEWS TICKER
  NEWS BROWSER
   OPTIMIZATION
  OPTIONS ANALYTICS
  PLACING TRADES
   PORTFOLIOS
  PRESETS
  PRINTING
   QUICK QUOTES
  QUOTE PAGES
   REALIZATION
  RTL LANGUAGE
   SCANS
   SCHEDULES
  SCOPE
   SYSTEM STATUS
   TICKER TAPE
   TIME AND SALES
  TRADING NOTES
   USER VARIABLES
  VERTICAL SCALE
 MASTER INDEX
DICTIONARY
FEEDBACK

 Investor/RT Tour ( more on Technical Indicators )
Up/Down Volume Ratio
The Formula . . . 

. . .more on Formulas 
UPVOL = SUM(VOL, m)  for up bars (CL > CL1)
DOWNVOL = SUM(VOL, m)  for down bars (CL < CL1)
UDVR = MA(UPVOL / DOWNVOL, n, maType)
m = Number of Periods
n = Smoothing Period
 
The Presentation . . . 

. . . more on Charts 

Up/Down Volume Ratio

Above is a Daily Candlestick Chart of Cisco Systems (CSCO).  The bold red line in the lower window pane represents the Up/Down Volume Ratio as specified in the preferences below.  A volume histogram for CSCO can be seen in the middle pane.  The bold blue line in the top pane is a Moving Average overlaying the price data.
 
The Preferences . . . 

. . . more on Preferences 

Up/Down Volume Ratio Preferences

  • Number of Periods -  Number of bars over which to sum the up and down volume before computing the ratio of up to down (or down to up).

  • Smoothing Period - If you would like the UDVR value to be smoothed, specify a period other than 1 here.

  • Moving Average Type - Type of smoothing to use, if applicable. 

  • Invert (Down Vol / Up Vol) - Check this box if you would like the indicator to be inverted to a ratio of Down Volume / Up Volume. 

  • UDVR Line Color - Color of the chart line.
 
The Description . . .
The Up/Down Volume ratio compares the representation of buyers vs. sellers over a period of time. The assumption is that if a stock closes UP for the day, the attributable volume was induced by buying pressure and thus the stock is under accumulation. Conversely, if a stock closes DOWN for the day, the trading activity is deemed to be selling induced, a sign of distribution. Up/Down ratio is calculated by creating a ratio of the volume on days when price increased to volume on days when price decreased. For each n-day period: 

U/D ratio = Sum of Volumes on Up Days 
Sum of Volume on Down Days

This value oscillates around a value of 1. For U/D ratios greater than 1 there have been more buyers than sellers over that time period and the ratio is bullish. U/D ratios less than 1 exhibit more sellers than buyers over the study period and the ratio is bearish.