BT Group plc (ADR) - 1998  (Inactive Symbol)

The following graph plots the year-to-date performance of the stock for 1998 compared to the probability calculated by a random walk model.

Initial Value*: $19.9 Hist. Volatility: 1.17% Annual Drift: 7% Final Value*: $38.6 Percentile: 99%
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 1998 (what's this?).