Affluent investors and millionaires were more nervous about investments in June than they were in May.

The Spectrem Affluent Investor Confidence Index fell 7 points between May and June, to negative 12, according to Spectrem Group Inc., Chicago.

The Spectrem Millionaire Investor Confidence Index fell 6 points, to negative 7.

To compile the affluent investor index, Spectrem interviews 250 financial decision-makers in households with $500,000 or more in investable assets each month. Spectrem uses a subset of the affluent decision-maker sample to come up with the millionaire index.

Spectrem is describing the June affluent investor index as being “mildly bearish” and the millionaire index as “neutral.”