Some analysts say they're not worried about stock and bond prices being pumped up artificially by the hordes of yield-hungry investors rushing to put their bank savings into mutual funds.

The issue came up again last week, when Federal Reserve officials said they are keeping an eve on the situation.

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.