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Williams %R

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Trading with the williams r oscillator


Williams %R, or just %R, is a technical analysis oscillator showing the current closing price in relation to the high and low of the past N days (for a given N). It was developed by a publisher and promoter of trading materials, Larry Williams. Its purpose is to tell whether a stock or commodity market is trading near the high or the low, or somewhere in between, of its recent trading range.

Contents

% R = h i g h N d a y s c l o s e t o d a y h i g h N d a y s l o w N d a y s × 100

The oscillator is on a negative scale, from −100 (lowest) up to 0 (highest), obverse of the more common 0 to 100 scale found in many Technical Analysis oscillators. A value of −100 means the close today was the lowest low of the past N days, and 0 means today's close was the highest high of the past N days. (Although sometimes the %R is adjusted by adding 100.)

Top technical indicators how to use williams r


Buy-/Sell-Signalling

Williams used a 10 trading day period and considered values below -80 as oversold and above -20 as overbought. But they were not to be traded directly, instead his rule to buy an oversold was

  •  %R reaches -100%.
  • Five trading days pass since -100% was last reached
  •  %R fall below -95% or -85%.
  • or conversely to sell an overbought condition

  •  %R reaches 0%.
  • Five trading days pass since 0% was last reached
  •  %R rise above -5% or -15%.
  • The timeframe can be changed for either more sensitive or smoother results. The more sensitive you make it, though, the more false signals you will get.

    References

    Williams %R Wikipedia


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