Volume POC Heatmap Chỉ báo

This indicator is a Volume Profile that displays the distribution of traded volume across different price levels during a specific period. Its main goal is to identify key support/resistance zones and areas where the market has shown the most interest (high buying/selling activity). It’s super useful for:

Detecting the Point of Control (POC) 🎯
The price level with the highest volume, acting as a magnet for price action.
Visualizing the Value Area (VA)
The zone where a specific percentage of total volume is concentrated (e.g., 70%), indicating balance between buyers and sellers.
Differentiating Bullish and Bearish Volume 📈📉
Shows where buying power vs. selling pressure accumulates.

🧠 Key Logic & Calculations 🔢

Price Range Division 📏
- The price range (from the lowest to the highest in the last B Bars ) is divided into Volume Cells (CNum) .
  Example: If CNum = 33 , the range is split into 33 equidistant levels.
Volume Distribution by Level 📊
- For each bar in the historical data:
- - The volume associated with the body (difference between open and close) and wicks (highs and lows) is calculated.
  - The volume is proportionally distributed across the price cells intersected by the bar.
    Example: If a green (bullish) bar covers 3 cells, the volume is assigned mainly to those cells as "bullish volume."
Point of Control (POC) Calculation 🎯
- The POC is the cell with the highest accumulated volume, representing the price where there was the most consensus between buyers and sellers.
Value Area (VA) Calculation 🔄
- Expands from the POC upwards/downwards until it encompasses the specified % of total volume (e.g., 70%).
  Example: If the VA ranges from 100 to 105 , it means 70% of the volume was traded within that range.
Visual Normalization 🖼️
- Volumes are scaled using a Scale Factor to adjust the width of the bars on the chart, making visualization easier.

🛠️ Key of the Volume POC Heatmap 💡

Lack of Context in Traditional Volume Indicators 🤔
Classic volume indicators (like bar-by-bar volume) don’t show where the volume was traded. This indicator maps volume by price level, solving that issue.
Organic Support/Resistance Identification 🚀
Zones with high volume act as dynamic support/resistance, more reliable than static lines.
Detection of Imbalances ⚖️
Areas with predominantly bullish or bearish volume signal potential breakouts or reversals.

💡 Practical Use in Trading 📈

POC as a Zone of Interest 🎯
- If the price approaches the POC, expect reactions like bounces or consolidations.
Value Area (VA) as a Balance Zone 🔄
- If the price is outside the VA, it tends to return to it (magnetic effect).
- If the price is inside the VA, it may indicate consolidation.
Bullish/Bearish Volume as Confirmation 🔍
- A spike in bullish volume at resistance suggests a potential breakout.
- High bearish volume at support indicates a possible breakdown.

🌟 Example 📊

Parameters Used (Visible & Configurable by the User):

Bars Back = 55 → Number of historical bars analyzed.
Volume Cells = 33 → Number of divisions/cells in the price range.
Value Area Volume % = 70 → Percentage of volume defining the Value Area.

Situation:

The price breaks through a technical support level, but the volume in that zone is low (according to the profile).
Later, the price returns to the Value Area (VA) defined by 70% of the total volume.

Interpretation:

The breakout was false (due to low volume in the breakout zone).
The market seeks to rebalance within the Value Area , where there’s higher activity (high volume density).

Action:

Look for buying opportunities near the lower limit of the VA or the POC, as these are zones of high interest for market participants.

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