Spike Base VP

Volume Profile Spike Base:
Key Features:

Identifies M Period: Detects the 3:30-4:00 PM ET 30-minute candle (highlighted with light blue background)
Tracks Pre-M Extremes: Monitors the highest high and lowest low before the M period begins
Validates Extensions: Only marks spike bases when the M period extends at least 1 point (configurable) beyond the pre-M extreme
Visual Markers:

Green line = Bullish spike base (low extension) - the highest low before M period
Red line = Bearish spike base (high extension) - the lowest high before M period
Lines extend to the right for easy reference
Triangle markers show when valid spike bases form



Usage Notes:

Use on a 30-minute chart for /ES
Ensure your chart time zone is set to America/New York (or adjust the time zone)
The minimum extension is set to 1.0 points but you can adjust it in the indicator settings
Works best when the M period creates a true spike beyond recent price action

The indicator will draw horizontal lines at your spike base levels that persist on the chart, making them easy to reference for potential support/resistance during your day trading. (default is 5 days, adjustable from 1-30 days)