Isilon Systems, Penwest Pharmaceuticals and Tiens Biotech Group lead small-cap percentage losers
Isilon Systems, Inc. (Nasdaq: ISLN), Penwest Pharmaceuticals (Nasdaq: PPCO) and Tiens Biotech Group Inc. (AMEX: TBV) are among the biggest percentage losers in Thursday's trading among companies with market capitalizations under $750 million.
Here are today's biggest percentage losers:
| Price at | % | ||||||
| 2:33 et | Change | Change | Volume | Year High | Year Low |


















