Polypore International, IRIS International and Sauer Danfoss lead small-cap percentage losers

Polypore International Inc. (Nasdaq:PPO), Iris International Inc. (Nasdaq:IRIS) and Sauer Danfoss Inc. (Nasdaq:SHS) are among the biggest percentage losers in Thursday's trading among companies with market capitalizations under $1 billion.
Also included among the results: OSI Systems Inc. (Nasdaq:OSIS), Natus Medical Inc. (Nasdaq:BABY), RGC Resources Inc. (Nasdaq:RGCO), VNUS Medical Technologies Inc. (Nasdaq:VNUS), Littelfuse Inc. (Nasdaq:LFUS) and Protective Life Corp. (Nasdaq:PL).
Here are the biggest percentage losers among small caps:
Also included among the results: OSI Systems Inc. (Nasdaq:OSIS), Natus Medical Inc. (Nasdaq:BABY), RGC Resources Inc. (Nasdaq:RGCO), VNUS Medical Technologies Inc. (Nasdaq:VNUS), Littelfuse Inc. (Nasdaq:LFUS) and Protective Life Corp. (Nasdaq:PL).
Here are the biggest percentage losers among small caps:
| Price at 1:56 ET | Change | % Change | Volume | Year High | Year Low | ||
| PPO | POLYPORE INTL INC | 6.98 | -4.52 | -39.3% | 4,138.0k | 29.26 | 9.97 |
| IRIS | IRIS INTL INC | 10.99 | -3.48 | -24.0% | 1,155.3k | 22.48 | 10.18 |
| SHS | SAUER-DANFOSS INC | 10.50 | -3.30 | -23.9% | 318.7k | 37.93 | 11.39 |
| OSIS | OSI SYSTEMS INC | 11.70 | -2.85 | -19.6% | 450.9k | 27.47 | 13.66 |
| BABY | NATUS MEDICAL INC DEL | 13.41 | -2.71 | -16.8% | 873.0k | 26.00 | 13.77 |
| RGCO | RGC RES INC | 24.86 | -3.99 | -13.8% | 2.5k | 33.35 | 24.56 |
| VNUS | VNUS MED TECHNOLOGIES INC | 13.82 | -2.13 | -13.4% | 489.5k | 24.44 | 12.60 |
| LFUS | LITTELFUSE INC | 17.53 | -2.61 | -13.0% | 204.7k | 39.21 | 17.80 |
| PL | PROTECTIVE LIFE CORP | 10.18 | -1.44 | -12.4% | 1,018.3k | 45.85 | 8.50 |
| HSNI | HSN INC | 7.00 | -0.96 | -12.1% | 1,031.3k | 16.54 | 3.63 |









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