Williams %R
An oscillator ranging from 0 to -100 that measures the close relative to the high of the last n periods.
Formula
%R = (Highest High over n - Close) / (Highest High over n - Lowest Low over n) x -100
Unit
%
In depth
Williams %R is the stochastic oscillator inverted and scaled to a negative range, so it contains identical information presented upside down — %R equals %K minus 100. Its conventional thresholds are -20 and -80, corresponding to the stochastic's 80 and 20. The negative scale trips up newcomers, who read -80 as a low number when it marks the bottom of the range. As with every bounded oscillator, extended readings at an extreme indicate a sustained move rather than an imminent reversal, and no reversal is predicted here.
Worked example
Over 14 periods the high is ₹536 and the low ₹468. With a close of ₹504, %R = (536 - 504) / 68 x -100 = -47.1. The corresponding stochastic %K is 52.9, and -47.1 = 52.9 - 100 exactly.
Illustrative figures, chosen so the arithmetic is easy to follow. Not a live price and not a valuation of any company.
Educational reference only
This entry explains what “Williams %R” means. It is not investment advice and not a recommendation to buy or sell any security. Any numbers above are illustrative, not live prices, and nothing here predicts price direction or rates a stock. Consider your own circumstances and consult a SEBI-registered investment adviser before acting.