Klinger Volume Oscillator: Long-Term Money Flow Signal

Key Takeaways

• Klinger volume oscillator subtracts a 55-period EMA of volume force from a 34-period EMA of volume force.
• Volume force flips sign based on whether the typical price is above or below the previous typical price.
• A 13-period EMA of the oscillator acts as the signal line, with crossovers flagging momentum shifts.
• The most common misuse is reading absolute KVO values rather than divergences and zero-line crosses.

What It Is

The Klinger volume oscillator, often shortened to KVO or KO, plots in a separate pane below price. It tracks how aggressively volume supports the prevailing price direction over two time horizons at once.

Klinger studied earlier volume work by Joseph Granville, Larry Williams, and Marc Chaikin, then aimed for an indicator that could spot short-term tops and bottoms while still tracking longer flows. The result is a fast and slow EMA spread on a signed volume series.

The Intuition

Most volume oscillators treat every share traded the same way. Klinger argued that volume should be weighted by how price is moving inside its current swing, not just whether the bar closed up or down.

When price is making higher key prices, accumulation is dominant and volume should be added with a positive sign. When price is making lower key prices, distribution is dominant and volume gets a negative sign. The fast and slow EMAs of that signed series then reveal whether short-term flow is pulling ahead of, or falling behind, the longer-term trend.

How It Works

Klinger first defines a key price as the simple typical price:

Key Price = (High + Low + Close) / 3

The trend for each bar is +1 if today's key price is greater than yesterday's key price, and -1 otherwise. Klinger then defines daily range cumulative (dm) and cumulative measurement (cm) terms that reset whenever trend flips, used to scale the volume force:

Volume Force = Volume * (2 * (dm / cm - 1)) * Trend * 100

The oscillator itself is the EMA spread of the volume force series:

KVO = EMA(Volume Force, 34) - EMA(Volume Force, 55)
Signal = EMA(KVO, 13)

Readings above zero suggest accumulation pressure. Readings below zero suggest distribution. Crossovers between KVO and its signal line are the standard short-term trigger.

Worked Example

Suppose a stock prints these typical prices and volumes over four bars:

• Bar 1, typical 100.0, volume 1.0M
• Bar 2, typical 101.0, volume 1.4M, trend +1
• Bar 3, typical 99.8, volume 1.8M, trend -1
• Bar 4, typical 100.5, volume 1.2M, trend +1

Each bar feeds the volume force calculation with its signed volume scaled by the dm and cm terms. After 55 bars of history, you compute the 34 and 55 EMAs of volume force. If the 34 EMA sits at +12,400 and the 55 EMA at +8,700, the KVO is +3,700. A 13-period signal EMA of +2,500 keeps KVO above its trigger, which most chartists read as bullish flow intact.

A bearish divergence appears when price prints a higher high but KVO prints a lower high. That gap often precedes a turn, but it is not a standalone reversal call.

Common Mistakes

1. Reading absolute KVO levels. The scale depends on share volume, so the same numeric KVO means different things on AAPL versus a thin micro-cap.
2. Ignoring the signal line. KVO alone is noisy. Most published rules use the 13-EMA signal cross, not raw KVO sign.
3. Trading every zero-line cross. Choppy markets generate many false flips. Pair with price structure or a moving average filter.
4. Skipping divergence checks. The strongest documented use is divergence at swing highs and lows, not trend following.
5. Applying default 34 and 55 to all timeframes. Klinger's defaults were for daily charts. Intraday charts often need shorter EMAs to stay responsive.

Frequently Asked Questions

What is the Klinger volume oscillator in simple terms? The Klinger volume oscillator turns volume into a positive or negative number based on price direction, then plots the spread between a fast and a slow average of that signed volume.

How does the Klinger volume oscillator affect investment decisions? Traders use it to confirm or fade price moves. A new price high backed by a KVO higher high suggests genuine demand, while a price high on a falling KVO warns that buying is thinning out.

What is a real-world example of the Klinger volume oscillator? On a daily SPY chart, you might see SPY drift to a new high while KVO rolls over and crosses below its 13-period signal line. That bearish cross often precedes a short-term pullback.

How can investors use the Klinger volume oscillator effectively? Combine signal-line crosses with classical support and resistance, and require divergence at swing extremes. Treat the absolute value as scale-dependent, never as a universal threshold.

How is the Klinger volume oscillator different from On Balance Volume? OBV adds full bar volume on up closes and subtracts it on down closes with no smoothing. KVO weights volume by an internal range factor and then takes the spread of two EMAs, giving a smoother oscillator.

Sources

1. Klinger, S. J. Identifying Trends with Volume Analysis. Technical Analysis of Stocks and Commodities, December 1997. https://traders.com/Documentation/FEEDbk_docs/Archive/1297/TradersTips/TradersTips9712.html
2. Sierra Chart Studies Reference, Klinger Volume Oscillator. https://www.sierrachart.com/index.php?page=doc/StudiesReference.php&ID=474
3. Trading Technologies, Klinger Volume Oscillator (KVO). https://library.tradingtechnologies.com/trade/chrt-ti-klinger-volume-oscillator.html
4. MotiveWave Studies, Klinger Volume Oscillator. https://www.motivewave.com/studies/klinger_volume_oscillator.htm

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.