Russell 2000 - 2010

The following graph plots the year-to-date performance of the index for 2010 compared to the probability calculated by a random walk model.

Initial Value: 625.39 Hist. Volatility: 1.68% Annual Drift: 7% Final Value: 783.65 Percentile: 74%
Click on the image for the high resolution version.

The high to date and low to date prices of the stock plotted against a random walk model for 2010 (what's this?).