Smart Money Concepts (SMC) is a price-action methodology that maps institutional behaviour through structure breaks, order blocks and liquidity pools. LuxAlgo's free SMC script automates most of that mark-up. The trap is treating every box the script draws as a trade — here's how to use the tool with discipline.
1. Start with market structure: BOS vs CHoCH
A Break of Structure (BOS) happens when price closes beyond the last swing high or low in the same direction as the trend — it confirms trend continuation. A Change of Character (CHoCH) is the opposite: price breaks the last swing in the counter-trend direction, flagging a possible reversal.
Read BOS/CHoCH on the highest timeframe you plan to trade, not your entry chart. The script labels them automatically; your job is to use them to define whether you're in trend-continuation or potential-reversal mode before looking at any entry.
2. Locate order blocks at the CHoCH origin
An order block is the last opposing candle before the impulsive move that caused a BOS or CHoCH — it marks where institutional orders were placed. Price often returns to that zone before continuing.
The script highlights these automatically. Filter them: only trade order blocks that caused a BOS on a higher timeframe. Blocks that produced only internal structure breaks are lower quality and generate more false entries.
3. Use Fair Value Gaps as entry precision tools
A Fair Value Gap (FVG) is a three-candle imbalance where the wicks of the first and third candles don't overlap — price moved so fast it left an unfilled zone. Price frequently fills FVGs before continuing.
Rather than entering at the order block edge, wait for price to retrace into an FVG that sits inside the order block zone. That narrows your entry and tightens your stop.
4. Combine with a higher-timeframe bias
SMC tools draw a lot of boxes. Without a bias filter you'll take every block from both directions and churn. Set a single higher-timeframe rule: e.g. '4h structure is bullish → only trade bullish order blocks on 15m.'
This one constraint cuts the noise dramatically. The LuxAlgo script has an 'Internal/Swing' mode toggle — use Swing on your HTF for the bias, Internal on your entry TF for precision.
- Trading every order block the script draws — only BOS-confirmed blocks on a higher timeframe carry institutional weight.
- Ignoring higher-timeframe bias and taking both bullish and bearish blocks — you'll be consistently on the wrong side in trends.
- Entering at the OB edge without an FVG or candle confirmation — the block can be passed through entirely on the first touch.
- Confusing BOS (trend continuation) and CHoCH (potential reversal) — the entire trade direction depends on getting this right.