wrong results with simple moving average rebound screener

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10/02/2017 at 9:20 AM #47971 quote
lore
Participant

New
Hi,
I have been using this very simple screener for a while to look for stocks in uptrend rebounding on the 50 days moving average. It was actually working until I started to obtain also values below the moving average as in the file attached. Cannot find on what I am wrong.
This is the screener code
```
a=Average[50]

c1= summation[30](close>a)=30

c2=low<a

screener [c1 and c2]
```
and attached you see the file with one of the stocks I get: there are also a few closes below the 50 day moving average when I put the condition of the last 50 closes being above it.

thank you

screener.png
10/02/2017 at 11:20 AM #47983 quote

Nicolas
Keymaster

Legend

This is odd, your code should work correctly. On the NASQAQ stocks list, I do not get any result right now, do you still have that problem this morning?

10/02/2017 at 12:02 PM #47989 quote

lore
Participant

New

yes … i keep on getting results below the moving averge.. especially the most recent ones

10/02/2017 at 12:53 PM #48001 quote

Nicolas
Keymaster

Legend

Do you have live subscription to NASDAQ Stocks list? Still don’t have any results in my screener window today for this code. Do you?

10/03/2017 at 5:31 AM #48077 quote

lore
Participant

New

have these results today

and they apear to be correct

this is weird because yesterday I got completely wrong results with the same code

Cattura2.png

10/16/2017 at 8:16 AM #49485 quote

Nicolas
Keymaster

Legend

About this issue, I heard that it was a problem in Daily timeframe only and it has now been fixed, do you agree?

01/13/2021 at 5:12 PM #157675 quote

dave_moz
Participant

Junior

Hi,

I see this is an old post but I think I’m seeing a similar issue in that ProScreener returns different values of EMA than what is actually on the chart.

Doing some tests I see that ProScreener thinks the EMA200 is ~1.5% lower than what it actually is.

Did you resolve your issue and does this sound anything like the same thing?

Thanks.

01/13/2021 at 5:59 PM #157686 quote

Nicolas
Keymaster

Legend

Your problem is not related, a 200 periods EMA needs more than 254 bars to calculate, which is the history limit of ProScreener, therefore the value may differ. I suggest you use an arithmetic moving average instead, SMA200 is ok.

dave_moz thanked this post

01/14/2021 at 12:03 PM #157797 quote

dave_moz
Participant

Junior

I see, that makes sense.

Thank you.
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