Shares of the vitamin and nutrition supplements chain plunged almost 19% after it badly missed Q4 sales estimates. Vitamin Shoppe's (VSI) sales rose rose 3.3% to $222 mil. Wall Street expected $266 mil. EPS edged up 5.3% to 40 cents, in line with views. The company said its revenue fell short because some stores were temporarily shut down after Superstorm Sandy. Sales at stores open at least a year rose 5.2%. The company said Sandy cut EPS by 8 cents. Shares closed 18.6% lower to 51.44.