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Industry Groups vs $DJUSxx industry members
Just some information
The Industry groups on StockCharts as viewed via the Sector Summary drill downs are different than the members of the Dow Jones Industry classifications. StockCharts uses their data providers classification/grouping for industry/sector, but they use the Dow Jones data for the Charts of the industry groups.
Example, is one that has been ticking on my nerves for a bit. $DJUSAL is the Dow Jones Aluminum index. I often wondered why it had, essentially, the same performance characteristics as AA (Alcoa). Put the two symbols on a perf chart and they run together. Slap them on an RRG chart, the same.
Using the Sector Summary for Materials> Aluminum, you get 8 names. Of these 8 names only 2 are in the Dow Jones Index. In fact, only 2 names make up the $DJUSAL. AA and KALU. DJ Indexes are cap weighted, so AA accounts for approximately 95% of the $DJUSAL performance.
So, if you have a chartlist of the $DJUSxx to run scans against, it's just something to be aware of.
StockCharts also uses the $DJUSxx when using the $Industry option in PctRelative and Price/Price Performance indicator on a chart. If you run a scan and select an industry group(s), these use the StockCharts data providers classification for selection.