Stocks have recently been hovering near a five-year high, but Federal Reserve Chairman Ben Bernanke says a stock market bubble is not in the works.
"I don't see much evidence of an equity bubble," Bernanke told the Senate Banking Committee in his semi-annual testimony on Tuesday.
But Bernanke thinks the gains are warranted, given strong company earnings recently.
The Fed's stimulative policies are meant to spur spending. Bernanke pointed to stronger housing and auto sales recently as proof that his plan is working.
The Fed's recent policies, which have kept interest rates near zero since 2008, have a secondary effect of driving investors away from low-yielding bonds, in search of higher-yielding assets like stocks.
Bernanke admitted that low interest rates "could encourage excessive risk-taking," but he assured lawmakers that he's closely watching for bubbles.