 Shares of Williams-Sonoma Inc. WSM, -3.56 slumped 3.7 in afternoon trading Tuesday, after Wedbush analyst Seth Basham recommended investors move to the sidelines, about a week before the household products retailer is expected to report fiscal third-quarter results. Basham cut his rating to neutral, after being at outperform from the past 2 12 years, saying that while Williams-Sonoma is expected to outperform its peers, the company is not immune to an intensifying promotional environment as inventories pile up and as potential drop in industry sales next year. 