Is there trading software that can identify and analyze similar trading days?

I think there are openings, middays and closes that bear a striking resemblance to many other openings, middays and closes. As anyone glued to their screen all day can attest.

 

Nice job! Was this in Excel only...?

 

Screen shots, huh?

You're more wrong than you know.

 

Well, I eschew MicroBloat products where I can, so OpenOffice/LibréOffice. But, same difference: a standard spreadsheet.

BTW, I just checked the conditional filter in the column G, and indeed, it's just
=IF(AA25=5,F25,"") -- so, "If Friday, print."

 

Yep a Library of Screen shots, compiled over a few months, waste of time that was.

 

You need data. Not screenshots.

 

Disagree, easiest way with no data feed to look for patterns, it failed so maybe not.

 

Not sure if you’re serious, but okay.

 

https://www.elitetrader.com/et/threads/pattern-recognition-for-es-developed.328152/

 

TradeStation can do this. I do it a lot, and it's useful. For example, if you buy certain ETFs the last 2-3 days of the month and sell after a couple of days into the new month, it'll make about 6% per year on average. The trouble is...it doesn't do this 100% of the time. Over a year, it'll probably be profitable (based on the past 20+ years), but in any given 2-3 months, you may lose.