Assignment:
The historical stock returns for GAF, Inc. are listed below:
YEAR Annual Stock Return
2003 22%
2004 9%
2005 37%
2006 (6%)
2007 2%
2008 20%
2009 (10%)
2010 (2%)
What is the standard deviation of returns for GAF, Inc. stock over the 8 year time period? (Compute the standard deviation assuming this is a population of returns, not a sample - that is, us the procedure described in the textbook for calculating the standard deviation of a series of stock returns).