EMA 8 and 21 crossover scan help needed

aviminesh

New to here but using stockcharts.com long time, need help to create scan with 8 and 21 EMA crossover alert with avg volume 500k and stock price is greater than 30

markd

The second parts are easy

and [close > 30]
and [sma(?, volume) > 500000] // you decide length of MA where ? is

Then you have to decide the direction of the crossover. MA 8 is faster, so it will always do the crossing, but there is no "cross below" operator, only "x", which is "cross above"

So for 8 crosses above 21

and [ema(8,close) x ema(21,close)]

but for 8 crosses below 21, you have to write it as if 21 crosses above 8, so:

and [ema(21,close) x ema(8, close)]