T. Rowe Price Group Inc - 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*: $10.8 Hist. Volatility: 2.71% Annual Drift: 7% Final Value*: $11.9 Percentile: 61%
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?).