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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.
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Investment Strategies / Mechanical Investing
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Author: Said ✧  😊 😞
Number: of 6245 
Subject: Re: Bear markets
Date: 03/09/24 2:30 AM
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No. of Recommendations: 3
They no longer have anything at all to do with individual company fundamentals and screening. If you were last in MI going into the GFC, yeah things have changed.

I started with MI in the 90's (was not called MI then or I didn't know it). As a computer guy "naturally" with neural networks and with statistics. That was a lot of hours and work but utterly failed, was even on paper never successful enough to invest real $. From 2000 on a strategy I developed which, yes, used individual company fundamentals was super-successful, on average >30% CAGR.

If I had used them in 08 with my whole portfolio at the time, I'd be retired already - would have turned a 32% loss into about a 15% loss.

I can relate to that. It's why I abandoned MI and my for 7 years so successful strategy: Because exactly the same happened to me, wiping out a good part of the gains of the previous years, as my strategy picked the very worst loser, Homebuilders+Lenders of last resort, companies which partly fell 70% or 80% - or did cease to exist.
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Members reply directly to Said 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
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