Pacific Investment Management Co.'s Neel Kashkari, who heads global equities at the Newport Beach, California-based investment firm, said Greece and Portugal will need additional bailouts.

“We don't think that Greece will actually be able to deliver on the austerity measures they're promising,” Kashkari said today in an interview on Bloomberg Television's “InBusiness with Margaret Brennan.” “Risks in Europe remain, so we're being very selective.”

Europe's approval of a 130 billion-euro ($172 billion) rescue package for Greece, the second such bailout since 2010, doesn't solve the region's sovereign-debt crisis, Kashkari said. While U.S. economic indicators have been improving, risks of further “shocks” coming out of Europe and slowing growth in the emerging markets are leading Pimco to buy stocks only selectively, he said.