Contents
What it is
SMC Master Structure is a complete Smart Money Concepts workspace for MetaTrader 4. It reads market structure, tracks liquidity and imbalance, scores setups for confluence, and keeps the whole picture organized on one chart — on any symbol and timeframe.
Everything is modular: each layer can be turned on or off, and the behaviors that matter are inputs you control. It is an analysis and charting tool — it does not place trades.
Install & first run
- In MetaEditor or the terminal, open File → Open Data Folder → MQL4 → Indicators.
- Copy
SMC_MasterStructure.ex4there. - In MetaTrader, refresh the Navigator (right-click → Refresh). The indicator appears under Indicators.
- Drag it onto a chart. In the dialog, on the Common tab enable Allow DLL imports is not needed (there are none); just click OK.
- On first load the indicator builds structure over history. Give it a moment on very high bar counts.
MQL4/Files/SMC_MasterStructure/ (e.g. the per-symbol ATR multiplier). This is normal and stays on your machine.The workspace
Three things share the chart:
On-chart drawings
Structure labels (HH / HL / LH / LL), BoS and CHoCH lines, sweeps, FVG and Order Block boxes, the volume profile, Fibonacci and standard-deviation channels, Liquidity Engine signals, and the Strategy C entry zone.
Button row
A compact row of toggles (top-right by default) turns layers on and off live, including PROFILE, HIST, HVN, OB, FVG, SD, FIB, MTF, and the ATR+ / ATR− range controls. RESET re-snaps the analysis range to the latest structure.
Panels
The trend label (top-left) shows the current-TF and higher-TF bias. The AI Brief panel summarizes the active symbol — alignment, structure, scenario and the Liquidity Engine state — and can scan a watchlist. The LE info panel explains the current Liquidity Engine setup.
Core concepts
| Term | Meaning |
|---|---|
| BoS | Break of Structure — price closes beyond the prior structural high/low, continuing the trend. |
| CHoCH | Change of Character — the first break against the prevailing structure; a potential reversal. |
| Sweep | A wick that takes liquidity beyond a prior high/low, then rejects. |
| FVG | Fair Value Gap — a 3-bar imbalance (price gap) that price often revisits. |
| OB | Order Block — the last opposing candle before an impulsive move. |
| HVN | High-Volume Node — a price where traded volume concentrated; natural support/resistance. |
| iCHoCH | A lower-timeframe CHoCH used as an entry confirmation inside a zone. |
Market structure
The engine labels swings (HH / HL / LH / LL) and marks BoS and CHoCH as bars close. The active structural high and low are always shown, and the trend label reflects the current read.
Structure is judged on closed bars. Use ATR+ / ATR− to widen or tighten swing sensitivity per symbol and timeframe — the value is remembered per symbol/TF.
Liquidity Engine (A / B) & confluence score
The Liquidity Engine validates two setup families and scores each one before drawing a signal.
- Strategy A — reversal: Sweep → CHoCH → FVG, in the same direction, within the timing windows.
- Strategy B — continuation: BoS → FVG in the trend direction. (Off by default.)
A setup first passes a precondition gate (valid chain, matching direction, timing). It is then scored for confluence — higher-timeframe alignment, the strength of the sweep and the break, the size of the FVG, timing tightness and momentum. Only setups that reach your minimum score are drawn, each labelled with its score=N/max.
Risk mode
LE_Risk chooses the threshold. Aggressive uses LE_MinScore_Aggressive (default 4). Conservative uses LE_MinScore_Conservative (default 6) and additionally requires higher-timeframe alignment — no signal is drawn against the HTF trend.
Strategy C — pullback to value
After a break, Strategy C projects the pullback zone and waits for a lower-timeframe confirmation inside it.
The flow is BoS → pull back into the Fib zone → an FVG forms in the zone → an iCHoCH (lower-TF CHoCH) confirms the entry. The tool draws the entry-zone box and references a structural stop and target. Conditions such as minimum pullback depth and a minimum risk:reward are inputs you set.
FVG & Order Blocks
Fair Value Gaps and Order Blocks are detected and kept current — active zones in their live color, mitigated zones dimmed. FVG is shown by default; Order Blocks are off by default (toggle with OB). Colors are all configurable.
Volume Profile (Multi-HVN)
A volume profile over the selected range highlights the prices where activity concentrated. High-volume nodes are drawn as zones — natural support and resistance.
Toggle the whole profile with PROFILE, the histogram bars with HIST, and the HVN zones with HVN. The range follows the vertical range lines; drag them, or press RESET to snap back to the latest structure. Profile_Bins, HVN_Sensitivity and HVN_Min_Power control resolution and how strong a node must be.
Multi-timeframe overlay
Higher- and lower-timeframe structure is projected onto the working chart, so bias and timing live in one place. Steps up/down from the current TF are configurable (TF_Steps_Up, TF_Steps_Down); toggle with MTF.
Fibonacci & StdDev channel
A Fibonacci set and a standard-deviation channel give pullback and extension context over the range. Levels, extra channels, styles and colors are all inputs. Toggle with FIB and SD.
AI Brief panel & watchlist
The panel summarizes the active symbol: multi-timeframe alignment, structure, the current scenario (CONTINUATION / PULLBACK / REVERSAL / CONFLICT) and the Liquidity Engine state. It refreshes automatically on an interval you set.
Optionally it scans a watchlist of symbols (off by default) across four timeframes you choose. The watchlist and file features are off by default to keep the chart light; enable them only when you want them.
Alerts
Choose the events (BoS, CHoCH, Sweep, new FVG/OB, mitigations, HH/LL review, Liquidity Engine signal) and the channels (popup, push, email, sound). Push notifications require your MetaQuotes ID set in the terminal.
Inputs reference
Grouped as they appear in the indicator's Inputs tab, with defaults. Only the key inputs are listed; every input has an inline description in the dialog.
Market Structure
| Input | Default | What it does |
|---|---|---|
| ATR_Len | 14 | ATR period used for structure sensitivity. |
| MaxBars | 2000 | How many bars back to analyze. |
| ATR_Mult_Default | 3.5 | Swing sensitivity; the ATR+/ATR- buttons adjust it and remember per symbol/TF. |
Liquidity Engine (A / B)
| Input | Default | What it does |
|---|---|---|
| LE_Enable | true | Master switch for the Liquidity Engine. |
| LE_Enable_A | true | Strategy A: Sweep → CHoCH → FVG (reversal). |
| LE_Enable_B | false | Strategy B: BoS → FVG (continuation). |
| LE_Risk | Conservative | Chooses the score threshold; Conservative also requires HTF alignment. |
| LE_MinScore_Aggressive | 4 | Minimum confluence score in Aggressive mode. |
| LE_MinScore_Conservative | 6 | Minimum confluence score in Conservative mode. |
| LE_MaxBars_SweepToChOCH | 80 | Timing window, sweep to CHoCH. |
| LE_MaxBars_ChOCHToFVG | 80 | Timing window, CHoCH/BoS to FVG. |
LE Confluence Score
| Input | Default | What it does |
|---|---|---|
| LE_Score_RSI_Enable | true | Include an RSI confirmation factor. |
| LE_Score_RSI_Period | 14 | RSI period. |
| LE_Score_RSI_OB / OS | 70 / 30 | Overbought / oversold levels for the RSI factor. |
| LE_Score_Body_ATR | 0.50 | Break candle body must be at least this × ATR to score. |
| LE_Score_FVG_ATR | 0.30 | FVG size must be at least this × ATR to score. |
| LE_Score_Timing_Frac | 0.50 | Steps within this fraction of the window count as tight timing. |
Strategy C
| Input | Default | What it does |
|---|---|---|
| LE_C_Enable | true | Enable the pullback strategy. |
| LE_C_Fib_Lo / Hi | 0.62 / 0.79 | Pullback zone Fib band. |
| LE_C_Fib_MinDepth | 0.50 | Minimum pullback depth before a setup is valid. |
| LE_C_MinRR | 3.0 | Minimum risk:reward for a recommendation. |
| LE_C_SL_ATR_Mult | 1.0 | Stop-loss distance in ATR beyond the structure. |
| LE_C_Show_Zone | true | Draw the entry-zone box (opacity via LE_C_Zone_Alpha). |
Volume Profile (Multi-HVN)
| Input | Default | What it does |
|---|---|---|
| Profile_Bins | 500 | Price resolution of the profile. |
| HVN_Sensitivity | 20 | How isolated a peak must be to count as a node. |
| HVN_Min_Power | 0.3 | Minimum relative strength (0..1) for a node. |
Multi-Timeframe Overlay
| Input | Default | What it does |
|---|---|---|
| Enable_MTF_Module | true | Compute HTF/LTF structure. |
| TF_Steps_Up / Down | 2 / 1 | How many timeframes up/down to project. |
| Use_M30 | false | Include M30 in the timeframe chain. |
AI Brief Panel
| Input | Default | What it does |
|---|---|---|
| AI_Brief_Enable | true | Show the on-chart brief panel. |
| AI_AutoRefresh_Secs | 300 | Panel refresh interval. |
| AI_Watchlist_Enable | false | Scan a list of symbols (opt-in). |
| AI_Brief_FileExport / AI_CSV_Export_Enable | false | Write the brief / CSV data to files (opt-in; encrypted in the release build). |
| AI_TF1..TF4 | M15/H1/H4/D1 | The four timeframes the watchlist scans. |
Other groups — Interface / Buttons, On-Screen Info, Fair Value Gap, Order Block, Fibonacci & StdDev, Structure colors, Alerts — are mostly appearance and on/off toggles with sensible defaults.
Suggested workflow
- Set the trend context from the trend label and the MTF overlay.
- Watch structure: is the last event a BoS (continuation) or a CHoCH (possible reversal)?
- Let the Liquidity Engine score the setup. In Conservative mode, act only on setups aligned with the HTF.
- For pullback entries, wait for the Strategy C zone and its iCHoCH confirmation.
- Use HVN zones and FVG/OB for stop and target reference. Manage your own risk.
FAQ
Does it repaint?
Structure, breaks and imbalances are evaluated on closed bars. As with all structure tools, the most recent, still-forming bar can change until it closes.
Which symbols and timeframes?
Any. Adjust swing sensitivity per symbol/TF with ATR+/ATR−.
It feels heavy on my terminal.
The heaviest optional features — watchlist scan, file/CSV export — are off by default. Reduce MaxBars and profile resolution if needed, and keep unused layers toggled off.
Does it trade or send my data anywhere?
No. It is an on-chart analysis tool with no trading and no network use.
Disclaimer & support
This indicator is an analysis and charting tool for educational use. It does not place trades and does not promise profits. Trading involves risk; the past behavior of any pattern does not guarantee future results. Test on a demo account and use your own risk management.
Support: via the product page on the MQL5 Market. © StructEdge.