Skip to content
Reversion Docs

Indicator Formula

Technical Details — Elder’s Force Index (EFI)

Section titled “Technical Details — Elder’s Force Index (EFI)”

Overview

Section titled “Overview”

The Elder’s Force Index measures volume-weighted price movement force.

Mathematical Derivation
Compact Formula Summary

See Elder’s Force Index technical documentation for formula.

Defaults: Period = 13 bars

Complete Calculation Example

See Elder’s Force Index documentation for worked examples.

Key Takeaways from the Example
  1. Volume Confirmation: EFI adds volume context to price signals
  2. Zero-line crosses: Indicate shifts in buying/selling pressure