unbreakable,
They're not bollinger bands but moving average envelopes set to detect extremes of price on a certain time frame.
Bollies expand and contract whereas these bands don't.
Basically it's based around theory of reversion to the mean.
thursday, page-43
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Last
7,788.3 |
Change
60.700(0.79%) |
Mkt cap ! n/a | |||
| Open | High | Low |
| 7,734.3 | 7,793.2 | 7,734.3 |
| XJO (ASX) Chart |