(FORTUNE Magazine) – Call it a December storm. The FORTUNE e-50 lost another 12.2% in the three weeks ended Jan. 3, even with Greenspan's surprise rate cut on the last day of the cycle. WebMD stopped its 11-month slide, gaining 43.2%, thanks to news of a corporate restructuring and the company's strategic withdrawal from a troublesome deal with News Corp. CNET and Oracle both heated up on optimistic predictions for 2001. Still, 40 of the 50 stocks languished in a deep freeze. Network Associates plummeted almost 65% after huge fourth-quarter losses and the resignation of three top executives. Things weren't quite as icy for the blue chips--both the FORTUNE 500 and the S&P 500 lost less than 1%. For updates on any potential stock market thaws, skate over to indexes.fortune.com.