The stock market fell from $10,017.12 in early October to $9,416.50 by mid-November. Sony stock specifically lost almost 2 points and was down over 5% in the past four weeks. A chart shows Sony's total investment value declining from around $10,200 to under $9,400 from the beginning to end of the period analyzed. A second chart depicts Sony's total investment value fluctuating but generally decreasing from 2000 to 2013.