Fair Value Gaps backtested honestly

Fair Value Gap (FVG) is one of the most-shared concepts in modern retail trading content. The pattern is simple to identify: a 3-candle structure where the second candle creates an imbalance between the first candle's high/low and the third candle's low/high. The teaching is that price has a tendency to return and fill these gaps. The question is whether that's true at a profitable expectancy after costs.

How the test was structured

Mechanical rules: (1) FVG identified on closed 5-minute candles, (2) entry on first retest of the gap zone, (3) stop beyond the gap (1.5x gap height), (4) target at 1:1 R:R minimum, (5) time-based exit if no fill within 8 hours. Tested on MNQ, MGC, NAS, XAU across 12 months with realistic commission ($0.74/side micro futures, $0.50 spread on forex CFDs).

Results

What the numbers mean

FVG entries produce small but real edge across all tested instruments. Profit factors of 1.18-1.45 mean roughly $1.18-$1.45 of profit for every $1.00 of loss — profitable but not extraordinary. The strategy works better on equity-style markets (MNQ, NAS) than on commodities (MGC, XAU), which is consistent with how FVG content is typically applied in retail.

The cost reality

Backtests without realistic commission and slippage assumptions would inflate these numbers. Adding $0.74/side commission and 1-tick slippage degrades the profit factor by approximately 0.1-0.15 across the board. The strategy is profitable after costs, but the margin is thinner than retail content typically suggests.

Drawdown profile

Max drawdowns of $1,640-$2,210 on a $50K account during the 12-month sample are significant relative to prop firm trailing DD floors (often $2,500). The strategy fits within tolerances but doesn't leave much margin for adverse regimes. Position sizing must be conservative; running FVG entries at 2-3% of account risk per trade (not 5-10% as some retail content suggests) is appropriate.

Where FVG fits in a portfolio

FVG works well as one strategy among several uncorrelated approaches. Its edge concentrates in specific market structures (post-displacement retracements); combining it with mean reversion strategies (active in ranges) and trend-following (active in sustained moves) produces a more consistent equity curve. See building strategies for prop firms and strategy types.

The Puravida Edge methodology uses similar imbalance-detection logic (price action gaps + volatility confirmation) in mechanized form across the production roster. Validation includes 1500-path Monte Carlo simulation to estimate prop firm blow rates. See portfolios for current results.

FAQ

Do Fair Value Gaps actually work in trading?

Mechanically tested across MNQ, MGC, NAS, and XAU, FVG entries show profit factors of 1.18-1.45 after realistic commission and slippage costs. The strategy is profitable but the margin is thinner than retail content typically suggests, and the edge concentrates in equity-style markets more than commodities.

What's the best instrument for FVG trading?

MNQ futures and NAS forex CFDs show the strongest FVG signals in backtesting — profit factors of 1.38-1.45 with manageable drawdown. Commodities like gold (MGC, XAU) produce weaker results (PF 1.18-1.23) with higher variance. This pattern is consistent with how FVG is taught in retail content (predominantly equity-focused examples).

How should I size FVG positions on a prop account?

Conservatively. Max drawdowns of $1,640-$2,210 on a $50K account during 12-month testing leave little margin against typical $2,500 trailing DD floors. Position size at 2-3% of account risk per trade rather than the 5-10% common in retail content. Run FVG as one strategy in a diversified portfolio rather than standalone.