Pre-market: Solarfun Power Holdings, Super Micro Computer and Silicon Motion Technology lead small-cap volume

Solarfun Power Holdings Co., Ltd. (Nasdaq:SOLF), Super Micro Computer, Inc. (Nasdaq:SMCI) and Silicon Motion Technology Corp. (Nasdaq:SIMO) are among the most actively traded companies in Wednesday's pre-market trading among those with market capitalizations under $750 million.
Salary.com, Inc. (Nasdaq:SLRY), Align Technology, Inc. (Nasdaq:ALGN) and DemandTec, Inc. (Nasdaq:DMAN) are also among the most actively traded small-cap companies in pre-market trading.
Here are the most actively traded small-cap companies in Wednesday's pre-market trading:
| Price at 9:05 ET | Change | % Change | Volume | Year High | Year Low | ||
| SOLF | SOLARFUN POWER HOLDINGS CO L | 13.93 | +0.75 | +5.7% | 139.8k | 40.19 | 8.22 |
| SMCI | SUPER MICRO COMPUTER INC | 7.57 | +0.00 | +0.0% | 123.5k | 11.85 | 6.74 |
| SIMO | SILICON MOTION TECHNOLOGY CO | 16.50 | +0.75 | +4.8% | 93.4k | 29.00 | 12.40 |
| SLRY | SALARY COM INC | 6.36 | +0.00 | +0.0% | 81.0k | 16.32 | 4.57 |
| ALGN | ALIGN TECHNOLOGY INC | 12.18 | +1.86 | +18.0% | 56.9k | 29.71 | 9.65 |
| DMAN | DEMANDTEC INC | 7.39 | +0.00 | +0.0% | 55.0k | 20.55 | 6.65 |
| AUTH | AUTHENTEC INC | 13.50 | +0.00 | +0.0% | 54.1k | 19.81 | 8.65 |
| DBTK | DOUBLE-TAKE SOFTWARE INC | 12.22 | +0.00 | +0.0% | 52.0k | 26.54 | 9.90 |
| BWLD | BUFFALO WILD WINGS INC | 30.00 | +4.12 | +15.9% | 41.3k | 47.75 | 18.25 |
| MLNX | MELLANOX TECHNOLOGIES LTD | 15.12 | +0.00 | +0.0% | 30.5k | 24.85 | 10.85 |









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