**Overview**

Developed by George C. Lane in the late 1950s, the **Stochastic Oscillator **is a momentum indicator that shows the location of the close relative to the high-low range over a set number of periods. According to an interview with Lane, the **Stochastic Oscillator** “doesn't follow price, it doesn't follow volume or anything like that. It follows the speed or the momentum of price. As a rule, the momentum changes direction before price.” As such, bullish and bearish divergences in the **Stochastic Oscillator** can be used to foreshadow reversals. This was the first, and most important, signal that Lane identified. Lane also used this oscillator to identify bull and bear set-ups to anticipate a future reversal. Because the **Stochastic Oscillator** is range bound, is also useful for identifying overbought and oversold levels.

**Description**

The **Stochastic Oscillator** measures the level of the close relative to the high-low range over a given period of time. Assume that the highest high equals 110, the lowest low equals 100 and the close equals 108. The high-low range is 10, which is the denominator in the %K formula. The close less the lowest low equals 8, which is the numerator. 8 divided by 10 equals .80 or 80%. Multiply this number by 100 to find %K %K would equal 30 if the close was at 103 (.30 x 100). The **Stochastic Oscillator** is above 50 when the close is in the upper half of the range and below 50 when the close is in the lower half. Low readings (below 20) indicate that price is near its low for the given time period. High readings (above 80) indicate that price is near its high for the given time period.

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**Settings in the chart**

**Settings in Strategies**

Since the **Stochastic Oscillator** consists of two separate components (**Stochastic Oscillator K**, **Stochastic Oscillator D**) each of which has its own parameters and values, in Strategy Builder the **Stochastic Oscillator** is also divided into two indicators:

**Stochastic Oscillator K****Stochastic Oscillator D**

All indicators can be used either together or separately with other indicators.