Volume
The number of shares or contracts traded in a period, used to gauge the conviction behind a move.
Related terms
Related lessons
ADX & DMI
The Directional Movement Index (DMI) and Average Directional Index (ADX) are Wilder's tools for measuring trend direction and, crucially, trend strength. This article explains the +DI and -DI lines (which side is winning), the ADX line (how strong the trend is, regardless of direction), the conventional 25/20 thresholds for trending versus ranging, how DI crossovers signal direction, and how to use ADX as a filter rather than a standalone signal.
Anchored VWAP
Anchored VWAP is the volume-weighted average price calculated from a specific anchor point you choose — a major high or low, an earnings date, an IPO — rather than resetting each session. This article explains how it represents the average price paid since a key event, why it acts as dynamic support and resistance, how being above or below it signals who is in profit, and where to anchor it for the most meaningful read.
Accumulation/Distribution Line
The Accumulation/Distribution (A/D) Line is a cumulative volume-flow line that, unlike OBV, weights each bar by where price closed within its range. This article explains how it is built, how its direction reveals accumulation versus distribution, how it differs from OBV (close-within-range vs up/down) and from Chaikin Money Flow (cumulative line vs windowed oscillator), and how A/D divergence warns when volume flow disagrees with price.
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