The following graph plots the year-to-date performance of the index for 2011 compared to the probability calculated by a random walk model.
Initial Value: 2208.38
Hist. Volatility: 1.73%
Annual Drift: 7%
Final Value: 2278.33
The high to date and low to date prices of the stock plotted against a random walk model for 2011 (what's this?).
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