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Understanding Williams Percent Range (WPR)

by Blz

Williams Percent Range

Williams Percent Range (WPR), also known as Williams %R or simply “%R,” is a powerful technical indicator used by traders and investors to analyze market momentum and overbought or oversold conditions. In this article, we’ll delve into what WPR is, how it works, and how you can effectively use it in your trading strategies.

What is Williams Percent Range?

WPR was developed by renowned trader and technical analyst Larry Williams. It is a momentum oscillator that measures the current closing price in relation to the high-low range over a specific time period. The formula for calculating WPR is as follows:

WPR = (Highest High - Close) / (Highest High - Lowest Low) * -100

Here’s a breakdown of the key components:

  • Highest High: The highest price recorded over the chosen time frame.
  • Lowest Low: The lowest price recorded over the chosen time frame.
  • Close: The most recent closing price.

How Does WPR Work?

WPR values typically range from -100 to 0, with -100 indicating oversold conditions and 0 indicating overbought conditions. Traders use these levels to make informed decisions. When WPR crosses above -20, it’s considered overbought, signaling a potential reversal or pullback. Conversely, when it crosses below -80, it’s considered oversold, indicating a possible buying opportunity.

Advantages of Using WPR:

  • Clear Overbought/Oversold Signals: WPR provides clear signals when an asset is overbought or oversold, helping traders time their entries and exits.
  • Divergence: Traders often use WPR to identify bullish or bearish divergence between price and the indicator, which can signal potential trend changes.
  • Versatility: WPR can be applied to various time frames, making it suitable for both short-term and long-term traders.

How to Use WPR in Your Trading Strategy

Here’s a simplified step-by-step guide on incorporating WPR into your trading strategy:

  1. Identify Overbought and Oversold Levels: Watch for WPR crossing above -20 (overbought) and below -80 (oversold).
  2. Confirm with Other Indicators: Combine WPR with other technical indicators like Moving Averages or Relative Strength Index (RSI) to strengthen your trading signals.
  3. Practice Risk Management: Always use proper risk management techniques, such as setting stop-loss orders, to protect your capital.
  4. Backtest and Analyze: Before trading live, backtest your strategy using historical data to assess its effectiveness.


Incorporating Williams Percent Range into your trading arsenal can enhance your ability to make informed trading decisions. By understanding overbought and oversold conditions, you can better time your entries and exits, ultimately increasing your chances of success in the markets.

Remember that no indicator is foolproof, and it’s crucial to use WPR in conjunction with other analysis techniques for comprehensive market assessment.

So, whether you’re a novice trader or an experienced investor, consider adding Williams Percent Range to your toolkit and elevate your trading game.

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