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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: Aussi ✧  😊 😞
Number: of 6243 
Subject: Re: Overlaps GTR1 backtest is flawed.
Date: 06/16/26 7:38 PM
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No. of Recommendations: 2
In GTR1 for Dummies, it mentions that the backtest results using picktally may not exactly match. So it may be difficult to cross check. The difference mentioned is up to a couple of percent.

For the "t bill" rate, I think it was like overnight or 3 month. You could check the return by putting in a step that never selects a stock and set a short timeframe and see what is the return. Say stock universe {^S5T} and a step tr(1,10) > 1000



Aussi
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Members reply directly to Aussi here — and replies get answered. Reading is free; so is joining the conversation. Join Shrewd'm »
This community has written 6,224 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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