Scan for Pullback after Muti day high

JJJJ

How do I write the scan for finding:

1) Stock at 20 day high on the close
2) The next 3 days the close is progressively lower than the prior day.
3) The 4th day the stock closes above the 3rd day close

markd

One condition at a time.

The twenty day high is max(20, close). So you would compare the current close to that.

For the lower and higher closes, you would use "1 day ago close", "2 days ago close" , etc. to specify each close. You would compare each pair with an operator, either ">" or "<".