Dow Jones Industrial Average - 2013

The following graph plots the year-to-date performance of the index for 2013 compared to the probability calculated by a random walk model.

Initial Value: 13104.1 Hist. Volatility: 0.65% Annual Drift: 7% Final Value: 16576.7 Percentile: 91%
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 2013 (what's this?).