ADOSC

Summary

Chaikin A/D Oscillator: the difference between a fast and a slow EMA of the Accumulation/Distribution line. Highlights momentum in accumulation/distribution volume flow. Positive/rising suggests accumulation; negative/falling suggests distribution.

Formula

ad += ((close-low)-(high-close))/(high-low) * volume (only when high>low)
fastEMA = fastk*ad + (1-fastk)fastEMA, fastk = 2/(optInFastPeriod+1)
slowEMA = slowkad + (1-slowk)*slowEMA, slowk = 2/(optInSlowPeriod+1)
ADOSC = fastEMA - slowEMA

Inputs

• inHigh — High price of each bar
• inLow — Low price of each bar
• inClose — Close price of each bar
• inVolume — Volume of each bar

Outputs

• outReal — Fast-EMA minus slow-EMA of the A/D line

Parameters

Parameter	Type	Default	Accepted values	Description
optInFastPeriod	integer	3	2–100000	Period of the fast A/D EMA
optInSlowPeriod	integer	10	2–100000	Period of the slow A/D EMA

Properties

Numerical Stability: Path-Dependent — It also computes EMA internally, so EMA's unstable period governs how many leading values are discarded.

Display Flags
☐ Overlap Input
✅ Independent Y-Axis i
☐ Candlestick

Implementation

TA-Lib Definition: adosc.c · adosc.yaml

Native	File
C	ta_ADOSC.c
Rust	adosc.rs
Java	Core_ADOSC.java

TA-Lib is also available for Python, R and more using a wrapper.

Aliases

Chaikin A/D Oscillator, Chaikin Oscillator

See Also

AD · EMA

References

• Marc Chaikin