New York, NY -- (SBWIRE) -- 12/20/2012 -- Bed Bath & Beyond Inc. (NASDAQ:BBBY) shares dropped 8.7% on Thursday to be the largest S&P 500 decliner following the home-furnishings retailer's Q4 outlook missed analysts' forecasts. Bank of America-Merrill Lynch as well trimmed the rating on the stock to neutral from buy.