# Ultimate oscillator

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Published: 2026-10-25T22:47:45.759Z

Updated: 2026-10-25T22:47:45.759Z

The ultimate oscillator is a theoretical concept in finance developed by Larry Williams as a way to account for the problems experienced in most oscillators when used over different lengths of time.

## Key facts

## Overview

The ultimate oscillator is a theoretical concept in finance developed by Larry Williams as a way to account for the problems experienced in most oscillators when used over different lengths of time.

The oscillator is a technical analysis indicator based on a notion of buying or selling "pressure" represented by where a day's closing price falls within the day's true range. The calculation starts with "buying pressure", which is the amount by which the close is above the "true low" on a given day. The true low is the lesser of the given day's trading low and the previous close.

bp

=

close

−         min         (

low

,

previous close

)

\{\\displaystyle \{\\text\{bp\}\}=\{\\text\{close\}\}-\\min(\{\\text\{low\}\},\{\\text\{previous close\}\})\}

The true range (the same as used in average true range) is the difference between the "true high" and the true low above. The true high is the greater of the given day's trading high and the previous close.

tr

=         max         (

high

,

previous close

)         −         min         (

low

,

## References

Ultimate Oscillator at Tradersdaytrading.com The Ultimate Buy Signal, Motley Fool

## Further reading

The Ultimate Oscillator, by Larry Williams, Technical Analysis of Stocks and Commodities magazine V.3:4 (140–141) (introduction)

## Sources

- Ultimate oscillator · Wikipedia: https://en.wikipedia.org/?curid=5122738

Source: Wikipedia contributors — https://en.wikipedia.org/?curid=5122738&oldid=1340651916

Licence: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/

Adaptation notice: Reformatted for XPay; the source may be abridged, restructured or translated. Consult the cited revision for the original.