PVI Node
Positive Volume Index
Overview
The Positive Volume Index (PVI) is a momentum indicator designed to track the actions of smart money and institutional traders who increase their activity on high-volume days. PVI only updates on days when volume increases compared to the previous day, effectively filtering out retail trading noise and focusing exclusively on institutional accumulation patterns.
Paul Dysart developed PVI based on the theory that smart, informed traders are most active when volume is rising, while uninformed retail traders are most active when volume is declining. By isolating increases in volume, PVI reveals where institutions are accumulating positions, often leading price movements by several bars.
PVI is most powerful when used alongside NVI (Negative Volume Index). Together, they provide a complete picture of both smart money and retail trader behavior, offering traders a comprehensive view of market dynamics.
Formula
PVI calculation uses cumulative volume adjustments based on volume direction:
The initial base value of 1000 provides a reference point and is standard across different securities. PVI accumulates percentage changes, making it comparable across stocks of different price levels. This multiplicative approach preserves the compounding effect of smart money accumulation.
Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
| source | Node | Auto | The data source node providing OHLCV data. Automatically detected from connected price nodes. |
| baseValue | Number | 1000 | Initial reference value for PVI calculation. Standard practice is 1000 to normalize comparisons across securities. |
| smoothing | Optional EMA | None | Optional 14-period EMA to smooth raw PVI values and reduce whipsaws. Useful for trending confirmation. |
💡 Note: PVI is not bounded - raw values far exceed 1000 during strong uptrends and can drop below 1000 during downtrends. This is normal and reflects cumulative institutional buying/selling pressure over time.
Common Use Cases
1. Smart Money Accumulation Detection
When PVI reaches breakout levels on rising volume during consolidation, it signals smart money accumulating before a breakout. PVI often rises for weeks before price finally breaks out, giving traders an early warning. This leading indicator helps position for institutional moves.
2. Trend Strength Confirmation
Compare PVI's slope with price slope. When both rise together at increasing rates, institutional support is strong and the trend is likely to continue. When PVI rises slower than price or diverges, it warns that uptrend is losing institutional support and reversal risk increases.
\n3. Bullish Divergence Trading
When price makes new lows but PVI doesn't match (hidden bullish divergence), smart money is secretly buying. This setup often precedes strong reversals as institutions complete accumulation. Enter long at support when PVI shows bullish divergence with price at support.
4. Reversal Warning Before Major Moves
Rising PVI at lower prices in downtrends signals smart money accumulation at support levels. Combined with price action patterns like reversal bars or consolidation breakouts, this indicates high-probability bounce or reversal setup. Watch for PVI to accelerate as price approaches support.
Advantages & Limitations
Advantages
- •Directly measures smart money activity and institutional accumulation patterns
- •Often leads price by 3-5 bars, providing early entry signals
- •Excellent for divergence detection with high reliability
- •Works effectively across all timeframes and asset classes
- •Useful for confirming or warning against breakouts before they happen
Limitations
- •Only updates on increasing volume days - less frequent signals in ranging markets
- •Ignores 50% of trading days (those with decreasing volume)
- •Early signals can be subjective and require patience for confirmation
- •Must be combined with price action and support/resistance for reliability
- •Gaps and overnight volume can create unrealistic jumps in the index
Tips & Best Practices
💡 Pair PVI with NVI for Complete Market View
Always use PVI plus NVI together. Rising PVI + falling NVI = accumulation with retail selling (strongest setup). Falling PVI + rising NVI = distribution with retail buying (warn of reversal). This combination reveals who is winning the battle between smart money and retail.
📊 Use Moving Averages of PVI
Apply a 21-day or 55-day EMA to raw PVI values. The slope of the EMA, not the PVI value itself, is what matters. When PVI's EMA slope is steeper than price's slope, institutions are aggressively accumulating. Track when the slope starts to flatten as an early warning.
⚡ Divergence > Breakout
Prioritize PVI divergences over simple breakouts. A bullish divergence (price lower but PVI higher) has higher win rate than a simple price breakout. These divergences often precede major moves by 3-15 bars. Pair with Fibonacci retracements for entry timing.
⚠️ Confirm with Price Action
PVI is most reliable when combined with price structure. Don't trade PVI bullish divergence just anywhere - place entries at support levels, within bullish patterns, or near Fibonacci levels. Raw PVI divergences without price context lead to whipsaws and false signals.
Example Strategy: PVI Accumulation to Breakout
A practical strategy using PVI to identify accumulation before institutional breakouts:
Smart Money Accumulation Breakout
Setup
- ✓ Price consolidating in range for 5-20 bars
- ✓ PVI rising consistently during consolidation while price flat
- ✓ PVI reaching new highs above prior consolidation highs
- ✓ Volume increasing on up days, showing institutional participation
Entry
- → Enter on close above consolidation high when PVI is rising steeply
- → Confirm with volume spike - volume should exceed average by 25%+
- → Place limit order 1-3% above the consolidation high
Stop Loss
- 2% below breakout candle low, or
- Just below consolidation range low
- Tighten stop if PVI starts rolling over despite higher prices
Profit Target
- 1st target: 1.5:1 risk to reward
- 2nd target: Prior swing high + consolidation range depth
- Trail stop: Below each new 5-bar low as trend develops
- Let winners run if PVI continues accelerating
Related Indicators
Negative Volume Index (NVI)
Counterpart to PVI - tracks retail trader behavior on decreasing volume days for complete market picture.
On-Balance Volume (OBV)
Similar momentum indicator that tracks volume on all days, not just increasing volume days.
Chaikin Money Flow (CMF)
Money flow analysis over specific periods for responsive institutional accumulation signals.
Accumulation/Distribution Line
Alternative accumulation measure using close price position within range.