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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: gritton ✸  😊 😞
Number: of 6131 
Subject: Re: GTR1: rrs vs. rsi
Date: 05/02/26 12:45 PM
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What is the difference between rrs(regression relative strength) and rsi(Relative Strength Index)?

RRS uses all data points between (today) and (1 year ago), and builds a least-squares regression line from them. It's an open-ended number that's higher when the trend is a gain.

RSI is a kind of exponential-average comparison of gains and loss days. As such, it uses only (today) and its own accumulators. It's a range-bound number (typically 0 to 100) that is nearer the top as gains exceed losses.

Which one does the simple relative strength calculation:
"price(today) / price(1 year ago)"

Nether. RSS is at least a different measure of the same general idea.

- Jamie
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