Range expansion

isabelds

I have know clue where to begin writing a range expansion scan, any help would be much appreciated.

looking for scam to find:

Today’s range must be equal to or greater than the larges range in the last 9 days.

as this does not seem to work:

and [Range > 1 day ago Max (9, Range)] 

Thank you in advance.

Isabel

markd

The scan itself seems to work - that is, it runs and it gets what it asks for. But you probably have to add conditions to capture a range expansion situation - by which I assume you mean, a strong reversal of trend.

So, for a bullish reversal, a simple way might be to test for a close up today and a falling sma of some length - so maybe sma10 less than 10 days ago sma10. For a bearish reversal you would test for the opposite - close down, higher sma vs the recent past.

lmkwin

I typed Range into the Search box at the top and found a couple of links that may assist you.

https://scan.stockcharts.com/discussion/comment/5898#Comment_5898

https://scan.stockcharts.com/discussion/comment/5823#Comment_5823

https://scan.stockcharts.com/discussion/1958/wide-range-bar-off-20-sma/p1

I see that your scan code passes syntax and actually returns results that meet the requirement you said. If you want them to be "rising" sequentially, perhaps you can add the Streak Up or Count Up function to the scan.

The Streak function looks for Consecutive periods. In this example, 8 consecutive Up closes.

and [Streak Up(close) > 8]

The Count function looks for a fraction. In this example, 8 Up closes out of 10 periods.

and [Count Up(10, close) > 8]

isabelds

the Streak and Count function are very helpful, Thank you!

lmkwin

my syntax was incorrect. I had greater than and it should have been greater than or equal to to match the descriptions. Corrected below.

The Streak function looks for Consecutive periods. In this example, 8 consecutive Up closes.

and [Streak Up(close) >= 8]

The Count function looks for a fraction. In this example, 8 Up closes out of 10 periods.

and [Count Up(10, close) >= 8]

Sorry about that.

You can even use the Count Up, or down, in the Rank By statement of a scan. It's neat.