Scientific Learning (Nasdaq: SCIL) leads the biggest stock gainers list for Friday September 16, 2011. SCIL added 30% in market capitalization, while Penson Worldwide (Nasdaq: PNSN) and KiOR (Nasdaq: KIOR) gained over 25% on the day. The full list of the day’s greatest gainers follows.| Stock Name and Symbol | % Change |
| Scientific Learning (Nasdaq: SCIL) | +30% |
| Penson Worldwide (Nasdaq: PNSN) | +28% |
| KiOR (Nasdaq: KIOR) | +27% |
| Bank of Virginia (Nasdaq: BOVA) | +23% |
| Lime Energy (Nasdaq: LIME) | +21% |
| China Kanghui (NYSE: KH) | +20% |
| Oak Ridge Fin’l (Nasdaq: BKOR) | +18% |
| Innotrac (Nasdaq: INOC) | +17% |
| Ever-Glory Int’l (AMEX: EVK) | +17% |
| Maui Land & Pineapple (NYSE: MLP) | +16% |
| Affirmative Insurance (Nasdaq: AFFM) | +16% |
| QAD, Inc. (Nasdaq: QADB) | +16% |
| China Green Agriculture (NYSE: CGA) | +16% |
| Plumas Bancorp (Nasdaq: PLBC) | +15% |
| First Fin’l Bancorp (NasdaqGS: FFBCW) | +15% |
| Insmed (Nasdaq: INSM) | +15% |
| MELA Sciences (Nasdaq: MELA) | +15% |
| BSQUARE (Nasdaq: BSQR) | +15% |
| K-V Pharmaceutical (NYSE: KV-A) | +15% |
| iSoftStone (NYSE: ISS) | +15% |
| Kingstone (Nasdaq: KINS) | +15% |
| Oculus Innovative (Nasdaq: OCLS) | +14% |
| Lantronix (Nasdaq: LTRX) | +14% |
| Dynavax (Nasdaq: DVAX) | +14% |
| Southern Community (Nasdaq: SCMF) | +13% |

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