# Filter for stocks where yesterday was x% lower than previous day close

#### stormy77

##### Member
I have a GAPUP scan, but I want to add another filter.
I want to scan for stocks that closed at least x% yesterday than the close of the previous day

Basically, I want the results to show:
- that gapped up today (already have this filter)
AND
- were x% down at the previous day close (from the day prior (need to understand how to craft this filter

I see that there is a Price_Direction study filter, but unsure if that is the correct one to use and if so, how would I configure it?

Solution
I'm not sure what you mean by define the closes, but you shouldn't need to define them further in a scan. It will run through all the symbols, and the close will automatically be inserted there for each symbol.

2 can be changed to what ever you want. Its already greater than, but in terms of being a larger percentage down. Its written as less than because its seeking a value lower than a negative number.

Do you need it bull/bear reversed perhaps?
plot y = ((Close[1] - Close[2]) / Close[2]) * 100 >= Percent;

Take a look at this as a chart study, it should illustrate what's going on.
Code:
``````declare lower;
plot x = ((Close[1] - Close[2]) / Close[2]) * 100;
plot z = 0;``````
Assuming the Gap is today, and you want yesterday to be down compared to the day before that.

input Percent = 2;
plot x = ((Close[1] - Close[2]) / Close[2]) * 100 < -Percent;

Do I need to define Close 1 and Close 2?
Also, this would show stocks down 2% right? How can I do 2% or greater? I tried >= but Tos did not like that

I'm not sure what you mean by define the closes, but you shouldn't need to define them further in a scan. It will run through all the symbols, and the close will automatically be inserted there for each symbol.

2 can be changed to what ever you want. Its already greater than, but in terms of being a larger percentage down. Its written as less than because its seeking a value lower than a negative number.

Do you need it bull/bear reversed perhaps?
plot y = ((Close[1] - Close[2]) / Close[2]) * 100 >= Percent;

Take a look at this as a chart study, it should illustrate what's going on.
Code:
``````declare lower;
plot x = ((Close[1] - Close[2]) / Close[2]) * 100;
plot z = 0;``````

Thanks for the clarifications

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