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Indicators/MyIndicators/Quant/SpreadCost_Pro.md

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+# Spread Cost Pro (Indicator)
+
+## 1. Summary
+
+**Spread Cost Pro** is a risk management utility that visualizes the "Real Cost of Trading" dynamically. It doesn't just show the spread in points (which is often meaningless in isolation), but calculates the spread as a **percentage of the current market volatility (ATR)**.
+
+This helps traders answer the question: *"Is it worth entering a trade right now, or is the spread too wide relative to the potential profit?"*
+
+## 2. Methodology
+
+$$Cost \% = \left( \frac{\text{Spread}}{\text{ATR}} \right) \times 100$$
+
+* **Spread:** The difference between Bid and Ask at that historical moment.
+* **ATR:** The average range of price movement (potential profit space).
+
+## 3. Usage
+
+* **Green Bars (< 10%):** **High Liquidity / Cheap.** This is the ideal time to scalp. The market is moving enough that the spread is negligible.
+* **Red Bars (> 30%):** **Low Liquidity / Expensive.** The spread is eating up a huge portion of the potential move.
+  * *Warning:* This often happens during **News Events**, **Market Rollover (23:00)**, or on **Exotic Pairs**.
+  * *Action:* **DO NOT SCALP.** Only enter long-term Swing trades where the spread matters less, or wait for liquidity to return.