Principal Financial Group Inc - 2004  (Inactive Symbol)

The following graph plots the year-to-date performance of the stock for 2004 compared to the probability calculated by a random walk model.

Initial Value*: $25.2 Hist. Volatility: 1.4% Annual Drift: 7% Final Value*: $31.7 Percentile: 77%
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 2004 (what's this?).