Volumen Promedio 20

This script calculates the 20-period simple moving average (SMA) of volume and sets a dynamic threshold by multiplying that average by a user-defined factor (default: 1.2).

🔍 When the current volume exceeds this dynamic threshold, the indicator:
- Highlights the background in light green
- Plots an upward green triangle above the bar
- Triggers an optional alert ("High Volume")

🟦 Blue bars: actual volume
🟧 Orange line: 20-period volume average
🟩 Green line: dynamic volume threshold

✅ Useful for detecting volume spikes, accumulation/distribution phases, or unusual activity relative to recent volume history.

Customizable:
- Volume threshold factor (sensitivity)
- Visual and alert signals

Ideal for intraday, swing, or trend analysis.