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### 1. Deconstructing Fair Value Gaps (FVG) and Imbalances
A Fair Value Gap (FVG), also referred to as a Single-Print Imbalance or Inefficient Pricing, occurs when an asset experiences an aggressive directional impulse driven by high-velocity institutional market orders. In standard auction market theory, price discovery requires equal participation between buyers and sellers at every price tick. When aggressive buy-side or sell-side orders overwhelmingly exceed resting limit liquidity, price skips across price levels without fair distribution.
In a standard three-candle candlestick sequence:
- **Bullish FVG:** The high of Candle 1 does not overlap with the low of Candle 3. The empty price void created by the body of Candle 2 represents an unfulfilled liquidity pocket where only aggressive buyers were filled.
- **Bearish FVG:** The low of Candle 1 does not overlap with the high of Candle 3. The intermediate price zone represents an unfulfilled sell-side liquidity imbalance.
$$\text{Bullish FVG Height} = \text{Low}(\text{Candle}_3) - \text{High}(\text{Candle}_1) \quad [\text{Valid when } > 0]$$
$$\text{Bearish FVG Height} = \text{Low}(\text{Candle}_1) - \text{High}(\text{Candle}_3) \quad [\text{Valid when } > 0]$$
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### 2. Order Blocks vs Fair Value Gaps: Algorithmic Synergy
An **Order Block (OB)** represents the exact institutional consolidation candle that preceded an aggressive impulsive breakout:
- A **Bullish Order Block** is the last down-candle before a violent upward rally that breaks market structure (BOS) and creates a Bullish FVG.
- A **Bearish Order Block** is the last up-candle before a violent downward drop that breaks market structure and creates a Bearish FVG.
```
Algorithmic High-Probability Confluence:
[Order Block Creation] -----> Institutional positioning at base
[Impulsive Expansion] -----> Creates structural FVG (Liquidity Void)
[Market Structure Break] -----> Confirms directional institutional intent
[Consequent Encroachment]-----> Retracement into the 50% midpoint of the FVG
[Institutional Reaction] -----> High-velocity expansion toward opposing liquidity
```
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### 3. Execution Blueprint: The Consequent Encroachment (C.E.) Setup
Professional algorithmic traders do not blindly place market orders at the edge of an FVG. Instead, they calculate the **Consequent Encroachment (C.E.)**, which is the precise $50\%$ mathematical median of the gap:
$$\text{C.E.} = \text{High}(\text{FVG}) - 0.50 \times (\text{High}(\text{FVG}) - \text{Low}(\text{FVG}))$$
1. **Wait for Price to Tap C.E.:** Limit orders placed at the C.E. provide superior risk-to-reward ratios compared to entering at the outer boundary.
2. **Delta Invalidation Rule:** If a full candle body closes beyond the far boundary of the FVG, the imbalance is deemed invalidated (inversion FVG) and the trade must be immediately closed.
3. **Use Zynto FVG Scanner:** Track real-time algorithmic imbalances across 15m, 1h, and 4h timeframes with automated C.E. level mapping on Zynto Markets.
Quant Strategies
7 min read
Fair Value Gaps (FVG) vs Order Blocks: The Algorithmic Quantitative Guide
Algorithmic Research
2026-10-06
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