Regd: Aroon indicator- doubt

 

hi guys,

I have a doubt with aroon indicator......

Those who know how aroon works can please guide me how aroon ( 30 day) has gone below 0 in gold daily chart in last few bars.

 

ABOVE IS THE CAHRT

 

http://stockcharts.com/help/doku.php?id=chart_school:technical_indicators:aroon


this is how the indicator exactly works.

http://stockcharts.com/help/doku.php?id=chart_school:technical_indicators:aroon

as soon as the latest hi is higher than the look back period (30 days or any other number) the value of arronup


consequently when negative values occur the indicator can go negative. a new 30 day low would

result in -1.

you histogram suggests that aroonup-aroondown is display where obviously a negative trend is establishing.