DTE Energy Co - 1978  (Inactive Symbol)

The following graph plots the year-to-date performance of the stock for 1978 compared to the probability calculated by a random walk model.

Initial Value*: $1.0 Hist. Volatility: 1% Annual Drift: 7% Final Value*: $0.9 Percentile: 21%
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 1978 (what's this?).