1999issue C051-7
On-balance volume confirmation, price-indicator divergence, and bounded exits
On-balance volume is a running sum of volume signed only by close direction. This article shows how the same line is read as confirmation or as price-indicator divergence, and why a stop-loss order is treated as required protection before a directional idea becomes a position.
- On-balance volume is a running sum that adds a period's volume when the close is higher than the prior close and subtracts that volume when the close is lower.
- Only close direction decides whether volume is added or subtracted. The size of the price change does not change the step, while heavier volume moves the line farther than light volume.
- The line moving with price is read as confirmation. A reverse relationship is price-indicator divergence, and an isolated divergence is not by itself a complete entry rule.
- A stop-loss order, including a trailing stop after entry, is presented as required protection around these on-balance volume and price-indicator divergence readings.
How on-balance volume is built
On-balance volume is a running sum that adds a period's volume when the close is higher than the prior close and subtracts that volume when the close is lower.
Only the direction of the close decides whether volume is added or subtracted. The size of the price change does not change the magnitude of the on-balance volume step.
The size of each on-balance volume step is set by that period's volume, so heavier volume moves the line farther than light volume.
The method can be computed on any interval that supplies a net price change and a volume figure. Daily bars are the usual teaching case.
Confirmation and price-indicator divergence
A common reading is confirmation: the on-balance volume line rising or falling with price is taken as evidence that volume is supporting the price trend.
A reverse relationship between price swings and on-balance volume swings is read as price-indicator divergence. That reverse relationship can precede a change in the price trend.
The same on-balance volume construction can be used for both confirmation and price-indicator divergence. Different operators can apply that construction in different ways with different outcomes.
A stop-loss order around the reading
A stop-loss order, including a trailing stop after entry, is presented as required protection around these on-balance volume and price-indicator divergence readings.
Total Renal Care on-balance volume, February 1998–February 1999

Daily OBV is a running sum of volume signed only by whether the close was up or down; the printed MetaStock scale is the source’s contracted volume units, so only relative level and direction are meaningful.
All readings on this track · 61 readings
- 1988Cumulative volume trend and 200-session polarity
- 1988Three clocks when cumulative volume led price
- 1988Payoff index checkpoints for open interest and divergence
- 1988Relative strength, stochastics, and on-balance volume as a turning-point stack
- 1988Signing volume by open interest change
- 1988Case study: weekly on-balance volume with trendlines and a 21-period average
- 1988Combining weekly and daily MACD divergences with on-balance volume
- 1988Restoring the original tests for market breadth, on-balance volume, and trendlines
- 1989Evaluating volume-weighted breadth extremes
- 1989Demand oscillator construction with a momentum overlay
- 1989Constructing a volume percentage ratio from advance-decline flow
- 1990Constructing net positive volume as On-balance volume
- 1990Buying-share scale with on-balance volume
- 1990Friday-filtered on-balance confirmation lines
- 1991Constructing rate-market volume breadth from on-balance volume
- 1991Building a breadth composite from on-balance volume breakouts
- 1992Constructing a rate-complex volume-breadth index
- 1992Constructing a breadth index from on-balance volume
- 1992Constructing signed market thrust from issue volume
- 1992Constructing indicator phase across averages, volume and bands
- 1993Force on-balance volume to agree with itself at slower horizons
- 1993Three transforms of market thrust from breadth and volume
- 1994Constructing a tick-line momentum oscillator
- 1994Constructing a smoothed on-balance tick momentum oscillator
- 1994Histogram confirmation and a second-series veto for MACD-family alerts
- 1994Constructing a 40-period envelope on on-balance volume
- 1996Constructing a matched percent-B volume disparity
- 1997Constructing calendar regime overlays and volume-weighted rules
- 1997Constructing market thrust from breadth and volume
- 1997Constructing on-balance volume as a signed running total
- 1997A three-layer construction for a signed volume-force oscillator
- 1997Constructing a range-sum volume-force oscillator
- 1999On-balance volume confirmation, price-indicator divergence, and bounded exits
- 2000A daily long-only confirmation stack on the tether line
- 2000A three-filter tether and volume trend system
- 2003Constructing finite volume elements as a finite-period money-flow filter
- 2003Constructing on-balance volume from signed session volume
- 2003On-balance volume as a market-breadth participation ledger
- 2003Construct a volatility-adjusted on-balance volume filter before confirming a breakout
- 2004Opening and midday ranges as an on-balance-volume breakout case
- 2004Constructing a volatility-gated volume-flow measure
- 2004Constructing a volume-flow series from on-balance volume
- 2004Volume-flow indicator construction from on-balance volume
- 2004Volume-flow slope divergence, then separate on-balance-volume and crossover rules
- 2004Volume flow and band construction as one inspectable problem
- 2004Auditing advance-decline confirmation for scale, horizon, and composition
- 2005Bounded market breadth from the Arms index to BRIN
- 2006Overnight-hold entry and exit construction
- 2007Evaluating Volume-price confirmation versus On-balance volume and MACD
- 2009Volume confirmation versus a price advance
- 2010Typeahead retrieval of a moving average, on-balance volume, and a stochastic oscillator
- 2010Modified volume-price trend and log-price scale alignment
- 2010Constructing liquidity accelerometers from advance-decline averages
- 2012Failed short cycles as breadth and volume tests
- 2016Earnings straddles, implied volatility, and money-flow filters
- 2017A volume residual filter and a price projection matrix
- 2019Volume-volatility parabola and signed-volume momentum
- 2019Separating on-balance volume into breadth and volume
- 2020Constructing the obvm signal line
- 2020Constructing smoothed on-balance volume with a signal line
- 2020Keep neutrality as a first-class input in three-state market data