Williams %R: Momentum Oscillator Guide
Williams %R measures overbought and oversold levels. Learn how this fast momentum oscillator complements other indicators in CFD trading. Overbought and.
What Is Williams %R?
Developed by Larry Williams, Williams %R is a momentum oscillator that measures the current closing price relative to the highest high over a lookback period (typically 14). It ranges from -100 (most oversold) to 0 (most overbought).
Reading the Oscillator
- -20 to 0: Overbought zone
- -80 to -100: Oversold zone
- -50: Midpoint — no signal
- Buy signal: %R exits oversold zone (crosses above -80)
- Sell signal: %R exits overbought zone (crosses below -20)
Williams %R vs RSI
Williams %R is mathematically similar to the Stochastic Oscillator and mathematically similar to the Stochastic Oscillator %K, displayed on a -100 to 0 scale. The key difference: Williams %R is faster and more volatile, making it better for short-term momentum but prone to false signals.
Use Williams %R on higher timeframes (4H, Daily) to reduce noise, or combine with a slower oscillator like RSI for confirmation.
Practical CFD Strategy
Combine Williams %R(14) with a 50-period EMA. In an uptrend (price above EMA): Buy when %R crosses above -80. Exit when %R crosses below -20.
The indicator works best on ranging instruments. Avoid using it during strong trends — it will give repeated false reversal signals.
Disclaimer: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 70-80% of retail investor accounts lose money when trading CFDs. Backtesting does not guarantee future results. Always consider whether you can afford the potential loss of your capital.