Do filters really provide an edge?

I personally use filters to select stocks to the point where I get no more than 20 setups/signals per month. Do smart traders really trade less?

 

water filters?

 

I'm assuming this is a joke

 

what 'filters' have to do with trading frequency?

 

Because you only end up with so many candidates when they're applied (at least in my case), and therefore end up trading less frequently. I don't trade anything but the US equity market

 

but you only trade one candidate at a time or all together?i dont get it..do you trade only once or twice a month.if you only trade one candidate at a time,then what filters have to do with the frequency?
I thought the frequency was dependant on a fractal(timeframe).

 

I generally make less than 20 short-term trades per month. Once you start talking about fractals I get lost. Keep it simple please.

 

YES