Hi, Shrewd!        Login  
Shrewd'm.com 
A merry & shrewd investing community
Best Of MIBest OfAll BoardsThe Shrewd’m WeeklyLearn to InvestHow to Become Shrewd
Search
Shrewd'm.com Merry shrewd investors
Search
Best Of MIBest OfAll BoardsThe Shrewd’m WeeklyLearn to InvestHow to Become Shrewd


The week's question
In March 2025, in the thread "Re: OT, out", Umm asked the members: "Do you think it is because America is made up of magical soil that makes businesses based in America magically profitable?" This week it is put to everyone again. The button below opens the small thread re-asking it - read what others have said so far, then give your own answer as an ordinary reply.
Answer this questionContinue to Shrewd'mThis note won't appear again
Investment Strategies / Mechanical Investing
Unthreaded | Threaded | Whole Thread (28) |
Author: rayvt ✧☼🐝🐝  😊 😞
Number: of 6243 
Subject: Re: Long time reader, infrequent poster
Date: 11/02/25 10:35 AM
Post New | Post Reply | Report Post | Recommend It!
No. of Recommendations: 4
Jim: "price / (52 week high + 52 week low) top N"
me: "I don't get the logic of this screen."


I have been mulling this over trying to figure why this makes sense.
Because gtr1 _does_ say it works.

The formula definitely does not contain price to H52 or price to L52.

Finally I think I get it. It is a form of Relative Strength.
Mathematical formula simplification.

Consider the forumla "P/ ((H+L)/2)"
Read as "P divided by the midpoint (or average) of H and L"
Simplified: "2P/(H+L)"
Compute that for each candidate stock and rank them in descending order.

Multiplying by a constant does not change the ranking, so you can drop the 2.
The formula is now "P/(H+L)"

Read this as: "rank the stocks by how far the current price is above the midpoint (average) of its 52 week high and low".

Normal relative strength is "how far the current price is above some price in the past."
This replaces the single historical price with a function of the historical price range.

Now it makes sense to me.

====================================================

I doubt that a lag of a few days on the 52 week measurements make much difference. It is unlikely that a new high or low occurred within 5 days of either end of a 252 day range.

10 HTD 15 is almost the same as just 10, but with half the turnover.
Post New | Post Reply | Report Post | Recommend It!
Print the post
Members reply directly to rayvt here — and replies get answered. Reading is free; so is joining the conversation. Join Shrewd'm »
This community has written 6,227 posts about Mechanical Investing. The article-length ones it recommended most:
Dividend investing · 52 recs · 2025
Non-Mag7 screen · 34 recs · 2025
OT - Div yields and returns · 32 recs · 2024
Using AI to generate backtesting programs · 30 recs · 2025
Rankings for 19Dec2022 · 29 recs · 2022
Unthreaded | Threaded | Whole Thread (28) |


Announcements
Mechanical Investing FAQ
Contact Shrewd'm
Contact the developer of these message boards.

Best Of MI | Best Of | Favourites & Replies | All Boards | Followed Shrewds | Open Questions | Moving a community