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Williams %R


Williams %R, also known as Williams Percent Range, is a type of momentum indicator in technical analysis that measures overbought and oversold levels in the market. It moves between a range of 0 and -100 which traders use to determine potential reversals in the market. For instance, a reading above -20 signals overbought conditions while below -80 indicates oversold conditions.


The phonetics for the keyword “Williams %R” would be: “Will-yuhms percent R”

Key Takeaways

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  1. Williams %R, developed by Larry Williams, is a technical analysis indicator that primarily identifies overbought and oversold market conditions. It typically ranges between -100 and 0.
  2. A reading above -20 is often considered overbought, whereas a reading below -80 is often considered oversold. Traders often use these levels to predict future price reversals.
  3. Despite its usefulness, like all other indicators, Williams %R should be used in conjunction with other tools and methods to increase the accuracy of predictions. Sole reliance on this indicator can lead to potential losses due to false signals.

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Williams %R, also known as Williams Percent Range, is a significant term in business and finance as it serves as a powerful tool to identify whether an asset or a stock is potentially overbought or oversold. This technical analysis oscillator moves between 0 and -100 and typically uses a 14 day period for its calculations. A reading above -20 indicates an overbought condition (asset being overvalued), while a reading below -80 may signify an oversold condition (asset being undervalued). This insight can help traders and investors to make informed decisions about buying and selling, thus forming a crucial part of investment strategies. Also, by comparing the levels of Williams %R to price trend, traders can highlight possible price reversals, leading to optimal entry or exit points.


The primary purpose of the Williams %R, a popular technical analysis tool developed by Larry Williams, is to identify potential buy and sell signals in the financial markets. Similar to a momentum indicator, the Williams %R measures overbought and oversold market conditions. This oscillating indicator moves between a range of 0 to -100 and is commonly used to anticipate potential price reversals in the market, giving traders a predictive edge.For instance, the Williams %R is often used in conjunction with other technical analysis tools to confirm price movements and forecast short-term price trends. A reading above -20 implies that the instrument might be overbought, indicating a potential price decline. On the other hand, a reading below -80 represents oversold conditions, pointing to a possible price rise. Hence, it’s effectively used by traders and investors who employ these technical analysis methods to formulate their investment decisions.


The Williams %R is a technical analysis oscillator that demonstrates the level of the close relative to the highest high for the look-back period, typically 14 days. It is an indicator used by stock traders to determine market oversold and overbought conditions, indicating potential reversal points. Here are three real-world examples of the Williams %R:1. Stock Market Trading: An investor could use the Williams %R to analyze the movement of the stock prices of a company like Apple Inc. If the indicator falls below the -80 line, it could mean that Apple’s stock is oversold and a price increase may soon follow. Conversely, if the indicator rises above the -20 line, the stock may be considered overbought with a potential decrease in the price forthcoming.2. Forex Trading: A forex trader might use Williams %R when trading currency pairs such as the EUR/USD. If the EUR/USD’s Williams %R value drops below -80, it might be an indication that the pair is oversold and the trader might consider buying. If the value rises above -20, the pair might be overbought, and it’s perhaps a good time to sell.3. Commodity Trading: The Williams %R can also be applicable in commodity trading. For example, a gold trader could use the indicator to identify possible turning points in the price of gold. If the Williams %R falls below -80, it might indicate that gold is oversold and could be due for a price increase, signaling an opportunity to buy. If the indicator moves above -20, it could suggest that gold is overbought and might face a price drop, indicating a potential selling point.

Frequently Asked Questions(FAQ)

What is Williams %R?

Williams %R, also known as the Williams Percent Range, is a type of momentum indicator that moves between 0 and -100 and measures overbought and oversold levels. It was developed by Larry Williams.

How is Williams %R calculated?

Williams %R is calculated by comparing the close of the security to the high-low range over a specific period, typically 14 periods. The result is then plotted on a scale from 0 to -100.

What does it mean when Williams %R is over -20?

A reading above -20 is considered overbought. According to the theory behind the Williams %R, it may imply that the market could be ready for a downward price movement.

What does a reading below -80 imply in the Williams %R?

A reading below -80 is usually considered oversold. According to the theory, it indicates that the market could be set for an upward price movement.

How do traders use Williams %R?

Traders use Williams %R to identify potential buying or selling opportunities in the market. Overbought conditions can be a signal to sell, while oversold conditions can be a signal to buy.

Is Williams %R a standalone indicator?

While Williams %R can be a powerful tool, like all technical indicators, it’s typically most effective when used in conjunction with other indicators and analysis tools.

Can the Williams %R indicate a trend change?

Yes, if the Williams %R crosses over the -50 line, it could signify a change in the trend – from an uptrend to a downtrend or vice versa.

What are the limitations of Williams %R?

The major limitation of Williams %R is that it may produce false signals during a sideways market movement. It’s also a lagging indicator, meaning it’s based on past price movements and may not predict future trends accurately.

Related Finance Terms

  • Overbought and oversold levels
  • Momentum indicator
  • Market trends
  • Oscillators
  • Technical analysis

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