Smc Session Killzone and Breakout - Installation & User Guide
29 April 2026, 07:29
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🕐 Smc Session Killzone and Breakout — User Guide
SMC SESSION TRADING ASIAN RANGE LONDON OPEN NON-REPAINTING METATRADER 5 KILLZONE
Welcome to the official user guide for Smc Session Killzone and Breakout — a professional Smart Money Concepts indicator for MetaTrader 5 that maps the three major trading sessions (Asian, London, New York), automatically detects when price sweeps the Asian session high or low, confirms the reversal with a Market Structure Shift (MSS), and signals a high-probability entry. This is the most widely used institutional session model in professional forex trading — now fully automated on your chart.
📋 Table of Contents
- Installation
- The Session Sequence — Why This Works
- How the 3-Step Breakout Model Works
- All Input Parameters Explained
- What You See on the Chart
- Step-by-Step Trading Scenarios
- Recommended Settings by Instrument
- Common Mistakes
1️⃣ Installation
📥 Installing from MQL5 Marketplace (Compiled Version)
| 1 | Log in to your MQL5 account inside MetaTrader 5 (bottom toolbar → MQL5.community). |
| 2 | Press F4 to open MetaEditor. Navigate to Market → Purchased in the Navigator panel. |
| 3 | Find Smc Session Killzone and Breakout. Right-click → Install. |
| 4 | Return to MT5. Open a chart. Right-click → Insert → Indicators → Custom → Smc Session Killzone and Breakout. |
| 5 | Configure inputs in the dialogue window and click OK. |
| 6 | ✅ Session boxes appear on the chart immediately for the last several trading days. |
💡 Best Timeframes
Apply to M15 for precise entry timing. Use M30 or H1 for a broader session view. The indicator uses UTC time — ensure your MT5 server time matches UTC or adjust the session hours accordingly. 2️⃣ The Session Sequence — Why This Works
The forex market runs on a predictable session rhythm. Institutional traders exploit this daily cycle to accumulate positions, run stops, and then drive the real directional move. Understanding this sequence is the foundation of this indicator.
🌏 Asian Session
00:00 – 08:00 UTC
Role: Range Builder00:00 – 08:00 UTC
Low volatility. Price consolidates. The high and low of this session become the liquidity levels — stop-losses from both sides accumulate just beyond these levels.
🇬🇧 London Session
07:00 – 16:00 UTC
Role: Liquidity Hunter07:00 – 16:00 UTC
Volatility expands sharply. London almost always sweeps one side of the Asian range to collect stops before the real move begins. This is the killzone.
🇺🇸 New York Session
13:00 – 22:00 UTC
Role: Trend Driver13:00 – 22:00 UTC
The real directional move develops — often opposite to the London sweep direction. The London/NY overlap (13–16 UTC) is the highest-probability entry window.
🧠 The Core Pattern
Asian range builds → London sweeps one side → MSS forms → NY drives the real direction. This sequence repeats with remarkable consistency on EUR/USD, GBP/USD, USD/JPY, and most major pairs. The indicator automates the detection of every step in real time. 3️⃣ How the 3-Step Breakout Model Works
| Step | Rule Applied by the Indicator | Why It Filters Bad Setups |
|---|---|---|
| 1️⃣ Asian Range Validation | Asian session must have completed AND range must be between InpMinRangePips and InpMaxRangePips | Too narrow = no meaningful liquidity. Too wide = already a news-driven day, not an accumulation day. |
| 2️⃣ Sweep Detection | Price wicks beyond Asian high or low by at least InpMinSweepPips AND closes back inside the range | A close outside = real breakout, not a stop-hunt. Only closing-inside qualifies as a sweep. |
| 3️⃣ MSS + Entry | After the sweep, price must break the swing structure in the opposite direction. Optional Fibonacci pullback entry. | Without MSS, you are fading a breakout blindly. MSS proves the sweep was institutional, not random noise. |
4️⃣ All Input Parameters Explained
🔷 Session Times (UTC)
| Input | Default | What It Does | When to Change |
|---|---|---|---|
| InpAsianStart / InpAsianEnd | 0 / 8 | UTC start and end hour for the Asian session range box. | Adjust for DST (Daylight Saving Time) shifts — typically ±1 hour in March/November. Also adjust for Sydney-heavy pairs (AUD/NZD) where Asia starts earlier. |
| InpLondonStart / InpLondonEnd | 7 / 16 | UTC hours for the London session box. | Adjust by 1 hour during UK BST (British Summer Time, late March – late October). London becomes 06:00–15:00 UTC in summer. |
| InpNYStart / InpNYEnd | 13 / 22 | UTC hours for the New York session box. | Adjust by 1 hour during US EDT (Eastern Daylight Time, mid-March – early November). NY becomes 12:00–21:00 UTC in summer. |
⏰ DST Quick Reference
| Period | Asian (UTC) | London (UTC) | New York (UTC) |
|---|---|---|---|
| Winter (Nov–Mar) | 00:00–08:00 | 07:00–16:00 | 13:00–22:00 |
| Summer (Apr–Oct) | 00:00–08:00 | 06:00–15:00 | 12:00–21:00 |
🔷 Range & Entry Settings
| Input | Default | What It Does | Effect If You Change It |
|---|---|---|---|
| InpRangeLookbackDays | 3 | How many past trading days of session boxes are stored and displayed on the chart. | ⬆️ Raise to 5–7 to see more historical context. ⬇️ Lower to 1–2 for a clean, present-focused chart. |
| InpMSSBars | 4 | Number of bars to look back when detecting a Market Structure Shift after a sweep. | ⬆️ Higher = price must break a larger swing (stronger MSS confirmation). ⬇️ Lower = faster trigger, weaker confirmation. |
| InpATRMult | 1.5 | The MSS impulse candle must be at least this multiple of the ATR. Prevents weak structure breaks from triggering entries. | ⬆️ Raise for only strong momentum breaks. ⬇️ Lower to 1.0 for more sensitive MSS detection. |
| InpATRPeriod | 14 | ATR calculation period used throughout for volatility reference. | Standard is 14. No need to change for most instruments. |
| InpWaitForPullback | true | When enabled, the entry signal waits for price to pull back after the MSS before firing. This gives a better entry price and improves R:R. | Set false for immediate post-MSS entries (more aggressive, catches fast movers). Set true for better price and reduced risk. |
| InpPullbackPct | 0.382 | The Fibonacci level price must retrace to before the entry signal fires (only active when InpWaitForPullback = true). | 0.236 = very shallow pullback (fewer fills, better trend entry). 0.382 = standard. 0.5 = medium. 0.618 = deep retrace, best price but fewer fills. |
🔷 Range Filters
| Input | Default | What It Does | Effect If You Change It |
|---|---|---|---|
| InpMinRangePips | 10.0 | The Asian session range must be at least this wide in pips to qualify. Very narrow ranges have insufficient liquidity on either side. | ⬆️ Raise to 15–20 pips on major pairs (EURUSD, GBPUSD) for stronger setups. ⬇️ Lower to 5 for pairs with tighter Asian ranges (e.g. USDJPY in quiet periods). |
| InpMaxRangePips | 200.0 | Asian ranges wider than this are ignored. Wide Asian ranges usually mean overnight news moved the market — the session model breaks down on these days. | ⬆️ Raise only if you want to trade volatile news days (not recommended). ⬇️ Lower to 80–100 pips to be more selective on calmer days only. |
| InpMinSweepPips | 2.0 | The wick beyond the Asian high or low must be at least this many pips to count as a sweep. | ⬆️ Raise to 4–5 pips for major pairs to avoid detecting micro-wicks. ⬇️ Lower to 1 only if your pair has consistently tight spreads and wicks. |
| InpMinRR | 2.0 | Minimum Risk:Reward ratio for an entry signal to be displayed. Calculated from structure-based SL to liquidity-target TP. | ⬆️ Raise to 2.5–3.0 for only the best geometry setups. ⬇️ Lower to 1.5 for more signals — check your pair's ATR and range to ensure TP targets are realistic. |
🔷 Filters
| Input | Default | What It Does | Effect If You Change It |
|---|---|---|---|
| InpMinATR | 0.0 | Minimum ATR value for signals to fire. 0 = disabled. | Set to e.g. 0.0003 (EURUSD) to prevent entries during pre-news dead zones or holiday sessions. |
| InpHTF | PERIOD_H4 | Higher timeframe used for the 200 EMA directional bias filter. | Change to H1 for day trading or D1 for swing trading. Must be higher than your chart's timeframe. |
| InpUseBias | true | Long signals only fire when price is above the HTF 200 EMA. Short signals only when below. | Strongly recommended ON — prevents trading against dominant institutional trend. Disable only for advanced counter-trend strategies. |
🔷 Visuals
| Input | Default | What It Does |
|---|---|---|
| InpShowSessionBoxes | true | Draw the coloured session range boxes on chart. Set false for arrows-only view. |
| InpAsianColor | Slate Blue | Fill colour of the Asian session box. |
| InpLondonColor | Royal Blue | Fill colour of the London session box. |
| InpNYColor | Dodger Blue | Fill colour of the NY session box. |
| InpDebugMode | false | Prints sweep and MSS events to the Experts log for troubleshooting. |
5️⃣ What You See on the Chart
| Visual Element | What It Means | Action |
|---|---|---|
| 🟦 Slate blue box labelled "AS 28.4p" | Asian session range. 28.4 pip range this day. Box stretches from session start to end. | Watch for a sweep of its high or low during London open |
| 🟦 Royal blue box labelled "LN" | London session range drawn as it builds. | Context — shows where London has traded relative to Asian range |
| 🟦 Dodger blue box labelled "NY" | New York session range. | Context — ideal entry window during London/NY overlap |
| "H↑" tag on Asian box | Asian high has been swept above during this trading day | Watch for a bear entry signal to follow |
| "L↓" tag on Asian box | Asian low has been swept below during this trading day | Watch for a bull entry signal to follow |
| 🔵 Blue arrow (pointing down, below bar) | Low sweep detected — Asian low was broken and price closed back above it | MSS still pending — arrow warns sweep has occurred, entry not yet confirmed |
| 🟠 Orange arrow (pointing up, above bar) | High sweep detected — Asian high was broken and price closed back below it | MSS still pending |
| ⬆️ Green arrow | Full long entry signal: low swept + MSS bullish confirmed + pullback (if enabled) reached | Enter long at next bar open. SL below Asian low. TP at Asian high + extension. |
| ⬇️ Red arrow | Full short entry signal: high swept + MSS bearish confirmed + pullback reached | Enter short at next bar open. SL above Asian high. TP at Asian low − extension. |
6️⃣ Step-by-Step Trading Scenarios
🟢 Scenario A — Classic London Low Sweep → Long Entry on EURUSD M15
Setup: Tuesday. Asian session closed with a 31 pip range (1.08450–1.08760). InpWaitForPullback = true.
| 1 | Asian box drawn: "AS 31.0p". Range is between InpMinRangePips (10) and InpMaxRangePips (200). ✅ Qualifies. |
| 2 | At 08:05 UTC (London open), a candle wicks to 1.08418 — 3.2 pips below the Asian low. It closes at 1.08461 (back above Asian low). ✅ Low sweep detected. 🔵 Blue arrow appears. |
| 3 | Asian box now shows "AS 31.0p L↓" tag. The sweep wick is clearly visible below the box. |
| 4 | Next 3 candles form a sharp rally. The 3rd candle closes above the swing high of the last 4 bars. ✅ Bull MSS confirmed. |
| 5 | Price retraces 38.2% of the MSS impulse. The pullback bar forms. ✅ InpPullbackPct=0.382 level reached. |
| 6 | ⬆️ Green arrow fires on the pullback bar. R:R = 2.8:1 — above InpMinRR. ✅ |
| 7 | Trade: Long at next bar open (1.08495). SL at 1.08410 (below sweep low). TP at 1.08760 (Asian high) + extension = 1.08900. Approximately 41 pip SL, 115 pip TP. |
🔴 Scenario B — NY Session High Sweep → Short Entry on GBPUSD M15
Setup: Thursday. Asian range 1.26800–1.27150 (35 pips). HTF H4 EMA = bearish. InpWaitForPullback = false.
| 1 | At 13:15 UTC (NY open), a candle wicks to 1.27192 — 4.2 pips above Asian high (1.27150). Closes at 1.27120 (back below Asian high). ✅ High sweep detected. 🟠 Orange arrow. |
| 2 | Asian box shows "AS 35.0p H↑" tag. |
| 3 | Next candle is a strong bearish close below the swing low of the last 4 bars. ✅ Bear MSS confirmed. |
| 4 | InpWaitForPullback = false → entry fires immediately on MSS bar close. ⬇️ Red arrow fires. |
| 5 | HTF H4 EMA = bearish → bias filter ✅. R:R = 2.2:1 ✅. |
| 6 | Trade: Short at MSS bar close. SL above sweep high (1.27192 + buffer). TP at Asian low (1.26800) − extension. |
⬜ Scenario C — Setup Rejected by Range Filter (Learning Example)
Setup: Monday after a major news event. Asian session traded wildly — range = 180 pips.
| 1 | Asian box drawn: "AS 180.0p". This exceeds InpMaxRangePips (200? — close call, but if set to 150 it would be rejected). |
| 2 | Indicator suppresses all signals for this session. No sweep arrows appear, no entry signals fire. |
| 3 | Why this is correct: A 180-pip Asian range means the market already moved significantly overnight — likely driven by news or gap. The clean accumulation/distribution model does not apply. Trading it would be low-probability. |
| 4 | Lesson: Adjust InpMaxRangePips to 100–120 on major pairs for the cleanest setups. Use a forex economic calendar alongside the indicator on Mondays and news days. |
7️⃣ Recommended Settings by Instrument
| Instrument | Typical Asian Range | MinRangePips | MaxRangePips | MinSweepPips |
|---|---|---|---|---|
| EURUSD | 15–50 pips | 12 | 100 | 2 |
| GBPUSD | 20–60 pips | 15 | 120 | 3 |
| USDJPY | 15–40 pips | 10 | 80 | 2 |
| AUDUSD | 10–35 pips | 8 | 70 | 2 |
| US30 (Index) | 80–200 points | 60 | 500 | 10 |
| XAUUSD (Gold) | 50–200 pips | 40 | 400 | 10 |
💡 Index and Gold Users
Adjust InpMinSweepPips and range settings proportionally for indices and gold — their pip values are much larger than forex pairs. A 2-pip sweep on EURUSD = roughly 10–20 point sweep on US30. 8️⃣ Common Mistakes
| ❌ Mistake | ✅ Fix |
|---|---|
| Trading on Mondays without checking the economic calendar — Asian range is often abnormally wide after weekend gaps | Set InpMaxRangePips to 80–100 on major pairs. If the Asian range exceeds this on a given day, the indicator automatically skips it. |
| Misreading server time — all session times are in UTC. Your MT5 server may show GMT+2 or GMT+3 | Check your server time offset in MT5 (bottom right clock). Subtract the offset from all InpSession times. E.g. if server = GMT+2, London = 07 UTC → show as 09:00 on your chart. |
| Entering on the sweep arrow (blue/orange) instead of waiting for the green/red entry arrow | The sweep arrows are alerts only — they say "a sweep happened." The entry arrow fires only after MSS confirmation. Never trade the sweep arrow directly. |
| Expecting a signal every single day | The indicator is designed to skip low-quality days (too-narrow or too-wide ranges, no clear sweep). This is a feature, not a bug. Quality over quantity. |
| Setting InpWaitForPullback=false on a fast pair and missing the move entirely | If your pair moves fast after MSS (e.g. GBPJPY, NAS100), use AGGRESSIVE mode (InpWaitForPullback=false) or a tighter ATR multiplier so signals fire quickly. |
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Smc Session Killzone and Breakout · MetaTrader 5 · Asian Range · London Open · New York Session · Killzone · Non-Repainting · MQL5 Indicator
