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The week's question
In December 2024, in the thread "Re: BRK: Why Not XOM?", BreckHutHigh asked the members: "What about the long road trips with kids?" 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: zeelotes 🐝🐝  😊 😞
Number: of 6131 
Subject: Re: NDX 100 Momentum Strategy - Code Repository
Date: 03/04/26 10:46 AM
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No. of Recommendations: 11
Ray asked: I have always wondered if GTR1 has the same issue.

I can 100% assure you that the constituent list in GTR1 is accurate back to its conception in 1985. There are few projects I've put more time into than building these point-in-time change lists. And as an FYI: This is also true every single time there is the slightest change in the list every single day.

Backtests that do not maintain constituent lists that are accurate have significant survivorship bias and are useless.
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This community has written 6,115 posts about Mechanical Investing. The article-length ones it recommended most:
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