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Ratio analysis
I often use ratio comparisons between various tickers and indexes. When comparing two symbols of similar value, the results are reasonably accurate. When comparing two symbols of extremely different value the results will be distorted. I recall reading an article (that I can't find) that addressed the distortion by using percent change rather than closing price for calculations thus eliminating the distortion. I'm hoping someone can either provide the link to the article or explain how to do it. Thanks, Techstocklover
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Here is an article from Chart School - not sure if it's the same one - see last section:
https://support.stockcharts.com/doku.php?id=sharpcharts:overlaid_charts
Although the article suggests using this indicator with a Performance chart, it works fine as a separate indicator above or below the price window of a Sharpchart. The main thing is it uses a per cent scale.
One thing to note - the "per cent" reading will vary depending on the length of the chart. For instance, the nine month INTC:$DJUSSC will read (as of the close 9/4/19) -12.45% cent (meaning INTC has underperformed its index compared to the chart starting point 9 months ago) while it will read -2.07% on the three month chart. BUT, the path of the RS line on the 3 month chart is completely analogous (proportional) to the last three months of the nine month chart. Only the starting point has changed. The relationship (relative performance) has stayed the same (i.e., the ticks up and down are proportionally the same).