Psychological Line Node
Market Sentiment Percentage
Overview
Psychological Line measures market sentiment by calculating the percentage of up days relative to total trading days. It captures crowd mood and market psychology - when most traders are buying (up days dominate), sentiment is bullish; when most are selling, sentiment is bearish. This simple ratio reveals whether traders are generally confident or fearful.
Unlike oscillators based on price mechanics, Psychological Line shows pure sentiment: how many days traders voted with their wallets for higher prices. Values above 50% indicate more buyers than sellers, below 50% indicate more sellers than buyers. Perfect for understanding who controls the market at each moment.
Formula
Psychological Line measures percentage of up days:
Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
| period | number | 14 | Number of days to count sentiment over. |
| source | Node | Auto | The root data source node. |
💡 Tip: Period 10-14 for active trading (recent sentiment). Period 20-30 for longer view of market psychology. Longer periods smooth choppy single-day reversals but respond slower to sentiment shifts.
Common Use Cases
1. Extreme Sentiment Reversals
Psychological Line above 75% = almost everyone bullish. Contrarian signal - who's left to buy? Price often reverses within 3-5 bars. Below 25% = almost everyone bearish, often bottoms. Extreme sentiment indicates vulnerable trend.
2. Trend Confirmation
Uptrend with Psychological Line 55-75% = healthy bullish sentiment. Too low (below 45%) = uptrend weaker than it looks. Downtrend with Psychological Line 25-45% = healthy bearish sentiment. Too high (above 55%) = downtrend lacking conviction.
3. Divergence Detection
Price makes new high but Psychological Line declining = fewer people participating. Hidden weakness. Price plunges but Psychological Line holding above 40% = some buyers still participating at lows. Bottoming signal detected early.
4. Position Building Timing
Build long position when price oversold AND Psychological Line below 40% (fear). Build short when price extended AND Psychological Line above 70% (greed). Sentiment extremes provide best entry timing with lowest risk-to-reward.
Advantages & Limitations
Advantages
- Direct measure of market sentiment
- Very simple to understand and calculate
- Works on all timeframes
- Excellent contrarian indicator
- No smoothing or complexity needed
Limitations
- Can be choppy with small periods
- Gap days distort up/down counts
- Only shows ratio, not magnitude
- Needs trend confirmation separately
- Less effective in ranging markets
Tips & Best Practices
💡 Use for Contrarian Signals
Real strength of Psychological Line is extremes. When sentiment reaches 20% or 80%, price is likely to reverse within days. Use with support/resistance for high-probability setups.
📊 Smooth with Moving Average
Apply 3-bar SMA to Psychological Line to smooth day-to-day ups and downs. Trend in smoothed line shows sentiment momentum. Rising smoothed = sentiment improving, falling = sentiment deteriorating.
⚡ Combine with Price Action
Psychological Line 80% + price new high = strong bullish. Psychological Line 80% but price stuck below resistance = bullish but sellers still defending. Context matters - compare to price levels.
⚠️ Don't Chase Extremes Immediately
Sentiment can stay extreme for 2-3 days. When Psychological Line hits 75%, don't immediately fade. Wait for price rejection or second extreme for confirmation before reversing.
Example Strategy
Contrarian sentiment reversal strategy:
Sentiment Extreme Reversal Trade
1Setup Phase
- Uptrend in progress, price near high
- Psychological Line reaches 75%+ (extreme bullish)
- Momentum showing but sentiment overextended
2Entry Signal
- Price rejection from high (closes near low of bar)
- Psychological Line still above 70% but turning down
- Enter short/scale down long position
3Exit Condition
- Psychological Line drops below 60%
- Price closes above recent high (momentum resumes)
- Or take profits at 3-5% pullback
4Risk Rules
- Stop above the recent peak (momentum confirmation failure)
- Only trade when Psychological Line 70%+
- Risk 1-1.5% per contrarian trade