#JELLYJELLYFuturesAlert

Bollinger band

Purpose:-

Used to identify volitality.

Formation:-

Upper band &lower 2 deviation period (SD used because 95% price movements fall in 2 SD.)

& Middle band 20 MA (for trend identif.)

Squeeze:-

Upper & lower come closer (consolidation)

Expansion:-

Upper & lower bands far from MA.

(volatility, overbought, oversold, trend)