Why do fvg work

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Last updated: April 8, 2026

Quick Answer: FVG stands for Fair Value Gap, a technical analysis concept in financial trading that identifies price inefficiencies between market participants. It occurs when there's a significant price difference between the closing price of one candle and the opening price of the next, creating a gap on price charts. Traders use FVGs to identify potential support and resistance levels, with gaps often acting as magnets for price action. The concept gained prominence in the 2010s with the rise of institutional order flow analysis and algorithmic trading strategies.

Key Facts

Overview

Fair Value Gap (FVG) is a technical analysis concept that emerged from institutional trading practices and order flow analysis. The term gained significant traction in the trading community around 2015-2018, particularly among forex and futures traders who were analyzing market microstructure. FVG represents a price inefficiency that occurs when there's a mismatch between supply and demand at specific price levels. Unlike traditional gaps that appear on daily charts, FVGs can occur on any timeframe and are identified by analyzing the relationship between consecutive price candles. The concept draws from market microstructure theory and the efficient market hypothesis, suggesting that these gaps represent temporary market inefficiencies that institutional traders exploit. FVGs have become particularly relevant in modern electronic markets where algorithmic trading and high-frequency trading create rapid price movements that can leave behind these identifiable patterns.

How It Works

Fair Value Gaps are identified by analyzing the relationship between three consecutive price candles on a chart. When the high of the first candle is significantly lower than the low of the third candle (or vice versa), and the middle candle doesn't fully overlap this range, a FVG is created. Specifically, if candle 1 closes at $100, candle 2 opens at $102 and trades entirely above $101, and candle 3 opens at $101, this creates a FVG between $100 and $101. This gap represents a price area where minimal trading occurred, creating an imbalance between buyers and sellers. Traders monitor these gaps because price often returns to fill them, as the market seeks equilibrium. The size of the gap, the volume during its formation, and the market context all influence how traders interpret and trade these patterns. Institutional traders often use FVGs to identify areas where stop losses might be clustered or where large orders might be waiting to execute.

Why It Matters

Fair Value Gaps matter because they provide traders with objective reference points for potential market turning points and continuation areas. In practical trading applications, FVGs serve as magnets for price action, with studies suggesting price returns to fill these gaps approximately 70-80% of the time across various markets. This makes them valuable for setting profit targets, placing stop losses, and identifying high-probability trade entries. The concept has gained particular importance in algorithmic trading systems, where computers are programmed to identify and trade these inefficiencies automatically. For retail traders, understanding FVGs provides insight into how institutional traders view the market, potentially leveling the playing field in highly competitive financial markets. The widespread adoption of FVG analysis across trading communities demonstrates its practical utility in modern technical analysis.

Sources

  1. Technical AnalysisCC-BY-SA-4.0

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