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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 10/19/2005 of 4.6%, the price range for the day (0.11) was divided by the average price (2.38). 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. The red plot shows the actual price. The remaining marks on the plot correspond to the Volatility measured across several time intervals. Investors often make a distinction between the concept of Volatility, and the concept of Risk. Academics define them to be exactly equivalent, but as can be seen here, there is good reason to distinguish between the levels of volatility or risk experienced across different time frames. Average Daily Volatility over the history of CPN has been 5% in contrast to the Average Quarterly Volatility of 55%. |
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If you have ever seen a "yield curve" you should be able to understand the concept behind this "yield curve". These Volatility Curves each apply to a discrete time interval. From left to right, each position plots the Volatility associated with increasing intervals of time. However, as seen in this plot of the CPN Volatility Curve, the increase is not constant. |
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This histogram is a frequency distribution of Daily Volatility, corresponding to the green points on the first chart on this page. |
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In a similar vein, the Frequency Distribution of the Quarterly Volatility is plotted here. This is the distribution of the values plotted in purple on the top chart from this page. |
Refined Volatility Risk Analysis for CPN : |
| Friday, March 12, 2010: We have news on ConAgra Foods, Inc., ticker symbol CAG. Signs of an over-bought condition have become noticable. Also, there are breaking events concerning Fluor Corporation (NEW) and Zimmer Holdings, Inc.. From the News Archive: (3/11/2010 ) Favorable events happened at GameStop Corp. and Zimmer Holdings, Inc.. Meanwhile, bad news came from The Goodyear Tire & Rubber Company and Omnicom Group Inc.. |