Investor confidence among millionaires rose to its highest level in more than two years as optimism about the economy increased.

The Spectrem Millionaire Investor Confidence Index rose five points this month to negative-one, according to a monthly survey by Spectrem Group, a Chicago research firm, that was released Wednesday. This is the ninth-consecutive neutral reading and the highest level for the index since December 2007 when it stood at eight.

Subscribe Now

Access to premium content including in-depth coverage of mutual funds, hedge funds, 401(K)s, 529 plans, and more.

3-Week Free Trial

Insight and analysis into the management, marketing, operations and technology of the asset management industry.