Fractal MSS with 4H Bias is a market-structure indicator that identifies Market Structure Shifts (MSS) using fractal highs and lows. It detects valid MSS patterns by analyzing sequences of four fractal swing points, breaks in previous swing structures, and confirmations in the opposite direction. An optional 4-hour bias filter uses the previous 4H candle to show only bullish or bearish MSS signals aligned with higher timeframe momentum.

Key features include visual pattern lines connecting swing points, a Fibonacci 50% retracement level marking an optimal entry zone, an on-chart alert panel displaying active signals and entry levels, and optional sound alerts. The 4H bias direction is updated automatically and displayed on the chart to assist in signal filtering.

Input parameters allow customization of fractal period sensitivity and toggling of the 4H bias filter, alerts, sound notifications, and pattern line visuals. The indicator supports trading by guiding users to wait for MSS detection, confirm bias alignment, mark the 50% Fibonacci level, and enter trades when price retraces into this zone in the direction of the MSS.

This tool is applicable across markets including Forex, indices, and commodities, and incorporates Smart Money Concepts (SMC) for enhanced market structure analysis.