Force Index Complete Guide
Indice de force
What is Force Index?
The Force Index is a technical oscillator developed by Alexander Elder, designed to measure the actual power behind a price move by combining price change and volume. It is calculated by subtracting the previous period's closing price from the current period's closing price and multiplying the result by the current volume. This calculation captures three essential elements of market movement: the direction of price change, the extent of the change, and the volume of trading. When the Force Index is positive, it indicates that the bulls are in control and the trend is likely upward. Conversely, a negative value suggests that the bears are dominant. The indicator is typically smoothed using an Exponential Moving Average (EMA) to reduce noise. A 13-period EMA is the standard setting for identifying intermediate-term trend changes, while a 2-period EMA is often used by short-term traders to find entry points during pullbacks. Practical usage involves looking for zero-line crossovers: a cross above zero confirms bullish momentum, while a cross below suggests bearish pressure. Additionally, divergences between the Force Index and price action are powerful signals of potential trend reversals. For example, if price makes a new high but the Force Index makes a lower high, it suggests the buying pressure is exhausting. It is most effective when used in conjunction with a trend-following indicator like a moving average to ensure trades are taken in the direction of the primary market trend.
Signal Types
Zero Line Crossover
A cross above zero indicates bulls are gaining power (buy signal), while a cross below zero indicates bears are taking control (sell signal).
Divergence
Occurs when price reaches a new high/low but the Force Index does not, signaling a potential trend exhaustion and reversal.
Short-term Pullback
Using a 2-period EMA, a drop below zero during an uptrend identifies a buying opportunity, while a rise above zero in a downtrend identifies a shorting opportunity.
Related Indicators
FAQ
What is the difference between the 2-period and 13-period Force Index?
The 2-period Force Index is highly sensitive and used for timing entries on minor pullbacks. The 13-period Force Index is smoother and used to identify broader changes in trend and momentum.
Why does the Force Index include volume in its calculation?
Volume represents the level of commitment from traders. By multiplying price change by volume, the Force Index distinguishes between weak price movements on low volume and significant moves backed by high participation.
Can the Force Index be used on intraday charts?
Yes, it is effective across all timeframes, including intraday. However, traders should be aware that volume data in some markets (like Forex) may be tick-based rather than actual traded volume.
Parts of this page (FAQ, introductions) are AI-assisted. Core data and statistics are algorithmically computed. All pattern definitions are human-reviewed.
Avertissement : Cette page est basée sur des données de marché publiques et une analyse technique algorithmique. Elle ne constitue pas un conseil en investissement.
Data source: EODHD · © 2026 KlineVision AI