Fair Value Gap
Price imbalance zones indicating institutional activity
Overview
Fair Value Gap (FVG) is a price action concept identifying gaps between candles that represent imbalances in buyer/seller positioning. These gaps occur when price moves so rapidly that it skips over a price level, leaving a zone of "unfilled" price. Institutional traders use these imbalances to identify support/resistance and mean reversion zones.
In smart money trading concepts, FVGs represent areas where institutional traders have built positions uncontested. When price leaves a FVG, it suggests strong directional conviction. Later, when price retraces, it often fills these gaps as institutions liquidate or reverse positions. Identifying FVGs provides objective zones for both trend continuation and mean reversion trades.
Retail and institutional traders use FVGs to identify highest probability mean reversion zones, breakout targets, and support/resistance levels. The technique works best on 4H and daily timeframes where institutional activity is most evident. FVGs often correlate with order flow imbalances and institutional order blocks.
Formula
Fair Value Gap identification based on candle positioning:
Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
| Lookback Bars | Integer | 50 | Number of bars to scan for recent FVGs (50-200) |
| Minimum Gap Size | Percent | 0.5% | Minimum gap percentage to qualify as FVG (filters noise) |
| Display Active Only | Boolean | True | Show only unfilled FVGs; remove once price fills the gap |
Common Use Cases
1. Mean Reversion Trading
Often price retraces to fill FVGs after strong directional moves. Traders fade extreme moves targeting FVG zones as mean reversion targets.
2. Support/Resistance Zones
Unfilled FVGs act as institutional support/resistance. Price repeatedly tests these zones before breaking through.
3. Breakout Confirmation
When price breaks through FVGs on heavy volume without filling them, it confirms sustained directional momentum.
4. Liquidity Pool Identification
Clusters of unfilled FVGs signal zones where institutional orders congregate and liquidity pools exist.
Advantages & Limitations
✓ Advantages
- Mechanical Identification: FVGs are objectively identified by simple price gaps; no interpretation needed.
- Institutional Mapping: Reveals zones where institutional traders have accumulated positions uncontested.
- Multi-Purpose Levels: Serve as support, resistance, breakout targets, and mean reversion zones simultaneously.
- High Confluence Zone: When multiple FVGs cluster, probability of meaningful support/resistance increases dramatically.
! Limitations
- Only In Gapping Markets: No FVGs form in continuous trading; gaps must be present for identification.
- Doesn't Predict Direction: FVGs indicate support/resistance zones but don't signal whether price will bounce or break through.
- Fast-Moving Markets Risk: By the time trader identifies FVG, price may have already filled it before trade executes.
- Multiple Gap Complexity: Charts with many overlapping FVGs become confusing and harder to trade around.
Tips & Best Practices
⚡ Cluster Zones Give Edge
Highest probability entries occur when multiple FVGs from different timeframes cluster in same price zone. Use daily + 4H FVGs together.
📊 Combine with Volume
FVGs formed on high volume breakouts are stronger support/resistance than FVGs formed on low volume. Confirm with volume bars.
🔄 Age Affects Probability
Older unfilled FVGs (3+ weeks) are statistically more likely to fill than recent FVGs. Very new FVGs often extend further before retracing.
⚠️ Don't Fade Extreme FVGs
If price creates FVG on massive volume and extreme momentum, don't immediately short into it. Wait for momentum exhaustion signals.
Example Strategy
1. Setup: Identify Active FVGs
Mark all unfilled bullish and bearish FVGs on daily chart from past 50-100 bars. Prioritize clusters of 2+ FVGs in same zone.
2. Entry: Price Approaches + Volume
When price approaches unfilled bullish FVG from above, place buy limit orders at FVG low. Confirm with decreasing volume into zone (exhaustion).
3. Stop Loss: Below FVG Zone
For long entries at bullish FVG, place stop 1-2% below the bottom of FVG zone. If FVG fully fills on high volume, exit trade as thesis violated.
4. Target: Next Resistance or FVG
Exit at prior swing high + 3-5%, or when price approaches next bearish FVG higher on chart. Trailing stop at EMA(21) as backup exit.