Is the Dow a Reliable Market Indicator?

Well, let's see...

The stock market has about 7,000 stocks. The Dow has 30. What are the odds the Dow is a reliable indicator of the total market? Not very good.

There have been many times the Dow has moved in unison with the market and has been an excellent market indicator. Yet, more often than not, it is not a reliable indicator of the general market.

So, the answer to the original question would have to be, generally, no.