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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: rayvt ✧☼🐝🐝  😊 😞
Number: of 6244 
Subject: Re: Timing period examined, 200 vs 325 days
Date: 03/26/26 12:08 PM
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What I was wondering is if you tested the theoretically possible case that after a sell signal (when you are out of the market) you already buy if GTT turns positive while the market is still skeptical, i.e. stays below the moving average. Probably a rare event...

Interesting supposition.
Seems unlikely if "Prices don’t change when fundamentals change. Prices change when expectations and perceptions change" is true.

Goes against the rationale of GTT also.
Which is "normal volatility sometimes tells you to exit when you should actually stay in".
It inverts some of that to be "get back IN early, even though the market is still in the crapper."

After thinking about it overnight I was able to tweak my backtest spreadsheet to examine that. After a couple of false starts. ;-(


From 1/1/1950 to 3/14/2024, weekly, 3873 weeks, there were 14 occurrances; IN for 153 more weeks.
Many more trades, 85 vs. 67

Lower CAGR 11.3% vs 11.6%

From 1/2/2000, 7.8% vs. 8.5%
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This community has written 6,227 posts about Mechanical Investing. The article-length ones it recommended most:
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