Premarket gainers: IO +24%. SUPG +22%. ELGN +19%. ALD +16%. VVUS +13%. BCRX +11%. NVTL +10%....Oct. 26, 2009 9:00 AM ETION Geophysical Corporation (IOGPQ) StockBy: Eli Hoffmann, SA News Editor Premarket gainers: IO +24%. SUPG +22%. ELGN +19%. ALD +16%. VVUS +13%. BCRX +11%. NVTL +10%. ARNA +8%. MPS +7%. HEB +6%. SVA +5%. MRVL +5%. CVM +5%. RSH +4%. NVAX +4%. CIT +4%. Losers: PVTB -15%. SOHU -9%. ING -8%. CYOU -8%. TMS -8%. TIVO -4%. Recommended For YouMore Trending NewsSee More »Related StocksSymbolLast Price% ChgIOGPQ--ION Geophysical CorporationTrending AnalysisTrending News