OBV (On-Balance Volume)
On-Balance Volume — cumulative volume flow.
What is OBV?
On-Balance Volume adds volume on up-days and subtracts on down-days, creating a cumulative total. Rising OBV confirms uptrend strength, falling OBV confirms downtrend strength.
Visual Encoding
- X-Axis: Time (candle intervals)
- Y-Axis: OBV value (auto-scaled)
- Line: Cumulative OBV
Interpretation
- Rising OBV = buying pressure accumulating
- Falling OBV = selling pressure increasing
- OBV divergence from price = potential reversal
- Data refreshes periodically — not real-time
Trading Signals
- OBV rising with price = volume confirms the trend
- OBV flat while price rises = bearish divergence, weak rally
- OBV breaking out before price = early accumulation
Price Overlay
- Close Price: Daily closing price (right Y-axis)
- OBV rising + price flat = accumulation (bullish)
- OBV falling + price flat = distribution (bearish)
- OBV confirming price = healthy trend
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