Matrixx Initiatives, A Power Energy Generation Systems and Medicines lead small-cap volume in pre-market

Matrixx Initiatives (Nasdaq:MTXX), A Power Energy Generation Systems Ltd. (Nasdaq:APWR) and Medicines Co. (Nasdaq:MDCO) are among the most actively traded companies in Friday's trading among companies with market capitalizations under $1 billion.
Also included among the results: ATP Oil & Gas Corporation (Nasdaq:ATPG), AgFeed Industries Inc. (Nasdaq:FEED), Century Aluminum Co. (Nasdaq:CENX), China Medical Technologies Inc. (Nasdaq:CMED), Fuqi International Inc. (Nasdaq:FUQI) and Spectrum Pharmaceuticals Inc. (Nasdaq:SPPI).
Here are the most actively traded companies among small caps:
| Price at 9:08 ET | Change | % Change | Volume | Year High | Year Low | ||
| MTXX | MATRIXX INITIATIVES INC | 5.85 | -0.16 | -2.7% | 46.1k | 19.74 | 5.48 |
| APWR | A POWER ENERGY GENERAT SYS L | 9.75 | +0.08 | +0.8% | 39.8k | 31.89 | 3.00 |
| MDCO | MEDICINES CO | 7.70 | +0.35 | +4.8% | 39.5k | 28.00 | 6.15 |
| ATPG | ATP OIL & GAS CORP | 7.15 | -0.04 | -0.6% | 35.0k | 42.89 | 2.75 |
| FEED | AGFEED INDUSTRIES INC | 6.10 | +0.19 | +3.2% | 34.3k | 15.18 | 0.90 |
| CENX | CENTURY ALUM CO | 6.70 | +0.22 | +3.4% | 30.3k | 70.48 | 1.04 |
| CMED | CHINA MED TECHNOLOGIES INC | 25.00 | +2.10 | +9.2% | 25.7k | 55.24 | 11.41 |
| FUQI | FUQI INTERNATIONAL INC | 16.74 | +0.61 | +3.8% | 14.3k | 19.47 | 3.31 |
| SPPI | SPECTRUM PHARMACEUTICALS INC | 6.00 | +0.13 | +2.2% | 12.7k | 6.35 | 0.55 |
| CAST | CHINACAST EDU CORP | 6.75 | +0.25 | +3.8% | 11.0k | 6.57 | 1.59 |




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