OPEN-SOURCE SCRIPT

Fractal Structure Indicator BOS CHoCH TGFX

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Fractal Market Structure — BOS / CHoCH

OVERVIEW
This tool maps market structure automatically using fractal pivots. It detects swing and internal structure, labels each break as BOS (continuation) or CHoCH (change of character / reversal), tracks the current fractal high and low (FH / FL), highlights the premium and discount zones of the active range, and summarises higher-timeframe structure in a table.

THE CONCEPTS
- Fractal pivots: highs and lows are detected as Williams-style pivots (a high or low with N bars on each side). Two layers are available — swing structure (larger pivots) and internal structure (smaller pivots inside the swings).
- BOS (Break of Structure): price closes beyond the prior structural point in the direction of the trend — a continuation event.
- CHoCH (Change of Character): the first break against the prevailing structure — an early sign of a potential reversal.
- Current FH / FL: the most recent fractal high and low, where liquidity tends to rest.
- Premium / Discount: the active range is split at its 50% equilibrium. Above it is premium (relatively expensive); below it is discount (relatively cheap).
- Multi-timeframe table: shows the structural bias and the zone (premium / discount) of higher timeframes at a glance.

NON-REPAINTING
A fractal is only confirmed once N bars have closed on each side, so a pivot is fixed after confirmation and does not repaint. Structure breaks (BOS / CHoCH) are evaluated on bar close.

SETTINGS
- Swing fractal length and internal fractal length.
- Show / hide internal structure.
- Show current FH / FL lines and labels.
- Show BOS / CHoCH labels.
- Show premium / discount zones.
- Colors, line extension, and the multi-timeframe table (timeframes and position).

HOW TO READ IT
- Green = bullish structure, red = bearish structure.
- BOS suggests trend continuation; CHoCH warns of a possible reversal.
- Price reaching discount within a bullish bias, or premium within a bearish bias, is the classic context many traders use to look for entries in the direction of structure.

NOTES
This script is an original implementation of standard, public price-action concepts (fractal pivots, market structure, BOS / CHoCH, premium / discount, equilibrium). It is a visualization and context tool — it does not generate buy/sell signals and makes no claim about future performance. Best used together with your own analysis and risk management.

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