Shares of StemCells (STEM -19.4%) give back some of yesterday's +100% move on a spate of...

|By:, SA News Editor

Shares of StemCells (STEM -19.4%) give back some of yesterday's +100% move on a spate of profit-taking this morning. Yesterday, the stock rocketed higher after the  company announced positive results from its Alzheimer's preclinical trials, which showed memory restoration and enhanced synaptic function after transplanting human neural stem cells into animal models.