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by TameAntelope 1511 days ago
The S&P 500 is for sure not the market. There are thousands of stocks that trade on various exchanges that are not in the S&P 500.
1 comments
andrewmcwatters 1511 days ago
Reread my comment. I didn't say it was the market. I said it _basically is_ the market. See my comments about FT Wilshire and FTSE Russell.

Regrettably, I shouldn't have bothered replying at all, some HN readers think beta is a fundamental measure. It is not. Many sources get this wrong for some reason.

If you are looking at price movements, you are doing technical, not fundamental analysis.

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TameAntelope 1511 days ago
It is also not _basically_ the market, either.
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andrewmcwatters 1511 days ago
Well I guess 80% of the market isn't basically the market by your definition is it and every major institution that uses the S&P 500 as a proxy for the US market is wrong, right? OK. Sure.
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TameAntelope 1511 days ago
Yes, 80% of the stock market isn't 100% of the stock market, that is correct...

Also 80% by some metrics, much, much smaller by others.

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