The stock market's sprint toward the historic 10,000 mark on the Dow Jones industrial average has prompted new warnings from a few economists that shares are overvalued.

"The market is priced for perfection, almost with the notion of perpetual prosperity," said Edward Yardeni, chief economist at Deutsche Bank Securities in New York.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.