Studies · Volume

Accumulation / Distribution Line (A/D)

accumulationDistribution · Chaikin's A/D line — volume signed by the close's place in the bar

Drawn in its own panelReads high, low, close, volume

Hover the chart to read values · practice data: a seeded random walk with no overnight gaps

What it measures

A running total of volume, signed and scaled by where each bar closed within its own range. A close at the high adds the full volume, a close at the low subtracts it, and a close in the middle adds nothing. A finer version of OBV.

How traders use it

• Divergence with price: price rising while A/D falls suggests distribution (selling into strength).
• Trend confirmation, as with OBV.

Parameters

None — the study is fully defined by its formula.