Ultimate Oscillator Optimization: Three Lookbacks, One Defined Signal

The Ultimate Oscillator combines buying-pressure-to-true-range ratios over three lookback lengths, commonly 7, 14 and 28 bars with weights 4:2:1. These are three windows on the chart’s data, not automatically three separately requested chart timeframes. Each ratio divides the sum of buying pressure by the sum of true range over its window; it is not the simple average of individual bar ratios.

For each bar, buying pressure uses the close minus the smaller of the low and previous close. True range uses the larger of the high and previous close minus that same smaller value. The weighted combination is scaled to 0–100. Keep the weights fixed initially and handle any zero denominator in a custom implementation. TradingView’s documented built-in inputs expose three lengths; configurable weights require a strategy that explicitly implements them.

Choose a threshold rule or define a complete divergence rule. A reading below 30 is not the same as a confirmed bullish divergence. A divergence strategy needs precise pivot pairing, confirmation timing and a trigger; plotting a pivot on an earlier bar cannot make it known before confirmation. Do not mix those signal definitions while attributing changes solely to lookback lengths.