Indicator description

BOLL uses the standard deviation of statistical principle to find its confidence interval.

Principle of buying and selling

1 BOLL can display its safe high and low price by band.

When the volatility becomes smaller and the band becomes narrower, there may be sharp price fluctuations immediately.

Healthy.

When the high and low points cross the edge of the wave area, they will return to the wave area immediately, and there will be a gear back.

After band 4 starts to move, it enters another band in this way, which is very important for finding the target value.

This is very helpful.

The above is an indicator description.

BOLL is called the bollinger band. See where the stock price is. The channel formed by two lines extending from the moving average is an indicator.