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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: rayvt 🐝  😊 😞
Number: of 6131 
Subject: Re: 135% return on mungofitch's "esoteric op
Date: 12/28/24 9:24 PM
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"There are some firms that I find odious ..."

Well it would be very fun to hear which firms those are. And whether, by excluding them, your results improve or not.


The first obvious one that comes to mind is MO/PM and other tobacco companies. 2nd would be casino/gambling companies.

PM + MO is currently 0.54% weight in SPY. You could create a portfolio without those by negative weight (i.e., short) them and add that much to SPY weight.

Backtest: testfol.io: Portfolio Backtester for ETFs and Asset Allocation

The difference with or without excluding them in SPY is negligible.

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