Indicateurs techniques
Stochastics
The Stochastics oscillator was developed by Dr. George Lane to track market momentum. The indicator consists of two curves:
- %K compares the latest closing price to the total price variation over a given period.
- %D is the "signal line" corresponding to the moving average of %K over a shorter period than the previous one, generally 3 sessions.
This indicator varies from 0 to 100.
The periods used in the indicator depend on the purpose for which Stochastics is employed and can be:
| Purpose | Periods %K |
Periods %D |
Overbought Level |
Oversold Level |
Note |
|---|---|---|---|---|---|
| In association with a trend indicator | 5 to 10 sessions | 3 sessions | 80% | 20% | Very sensitive |
| Alone or for longer cycles | 14 to 21 sessions | 3 sessions | 70 % | 30 % | Shows only significant changes |
Example

Interpretation
When Stochastics fluctuates near the 100 level, it signals an accumulation situation. A fluctuation near the zero level indicates a distribution situation.The shape of the Stochastics curve gives some indication of future evolution:
- A narrow minimum that is not very deep indicates that "bears" are weak and the evolution should be strong.
- A wide and deep minimum signals that "bears" are strong and the evolution should be weak.
And vice versa:
- A narrow maximum indicates that "bulls" are weak and the correction is likely to be strong.
- A high and wide maximum indicates that "bulls" are strong and the correction is likely to be weak.