A stock broker compares the monthly performance of two stocks during the past two years. The stock broker creates a time series plot to visualize the performance of the two stocks.
The solid line for Company A shows a slow increase over the two-year period. The dashed line for Company B also shows an overall increase for the two years, but it fluctuates more than that of Company A. Company B starts lower than Company A, but Company B surpasses Company A by April.