| Prev. Co. | Next Co. | |
|
| ||
|
Volatility is defined as the price range for a period, divided by the average price for the period: So, to derive the Daily Volatility on 7/19/2010 of 1.2%, the price range for the day (0.68) was divided by the average price (52.46). Daily Volatility (the daily range as a portion of the daily average price) is plotted in green. Blue is Weekly Volatility, which is the weekly range as a portion of the weekly average price. This is a different concept from the weekly average of daily volatility. For reference, the price is plotted in red. The remaining marks on the plot correspond to the Volatility measured across several time intervals. According to academic theory, Volatility is exactly equal to Risk. But investors often make a distinction between these two concepts. The different character of Volatility as seen in different time frames, lends some support to the investor's view. During 20 years, the Average Quarterly Volatility of CELG stock price has been 45% while the Average Daily Volatility has been 5%. |
| Prev. Co. | Next Co. | |
| ||
|
You may be familiar with the "yield curve" which shows how interest bearing yields vary according to term. Each Volatility Curve is a snapshot in time. From left to right, each position plots the Volatility associated with increasing intervals of time. The relationship between the length of time, and the expected change in price, is not linear, as is demonstrated by this chart. |
| Prev. Co. | Next Co. | |
| ||
|
This histogram is a frequency distribution of Daily Volatility, corresponding to the green points on the first chart on this page. |
| Prev. Co. | Next Co. | |
| ||
|
Similarly, the purple points on the top chart, the Quarterly Volatility Values, are subjected to frequency distribution here. |
Refined Volatility Risk Analysis for CELG : |
| Wednesday, July 28, 2010: We have news on W.W. Grainger, Inc., ticker symbol GWW. Signs of an over-bought condition have become noticable. Also, there are breaking events concerning Cummins Inc. and Quest Diagnostics Incorporated. From the News Archive: (7/27/2010 ) Favorable events happened at Lexmark International, Inc., Range Resources Corp., and Zimmer Holdings, Inc.. Meanwhile, bad news came from QUALCOMM, Inc.. |