Barclays PLC - iPath US Treasury Steepener ETN - 2014  (Inactive Symbol)

The following graph plots the year-to-date performance of the stock for 2014 compared to the probability calculated by a random walk model.

Initial Value*: $42.0 Hist. Volatility: 0.92% Annual Drift: 7% Final Value*: $34.6 Percentile: 8%
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 2014 (what's this?).