Confidence among affluent and millionaire investors sunk further in November, according to Spectrem Group.The Spectrem Millionaire Investor Index fell 15 points in November, to an all-time low of 39.

The decline in the millionaire index was its biggest ever and pushed it into bearish territory for the first time since the Chicago company introduced it in February 2004. The previous low, 24, was reached in October. The latest results were released Wednesday.

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