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Volatility Analysis for United Airlines

Chapter II: Risks associated with short and long period price changes can be understood through Volatility Analysis. Here the impact of the Volatility Curve on the potential profitability positions across different time spans is shown.

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Daily Volatility = Price Range as a percent of the daily average price. of United Airlines

Volatility is defined as the price range for a period, divided by the average price for the period:

The Daily Volatility is obtained by dividing the daily range by the daily average. A longer Volatility period such as Weekly Volatility is obtained by dividing the weekly price range by the weekly mean price. It is important to avoid confusing this with the weekly average of the daily volatility, which is a completely different concept.

The red plot shows the actual price. Volatility, as measured through various intervals, ( Daily, Weekly, Monthly and Quarterly) is plotted according to color.

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.



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UAL:  Volatility Curve

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. As the timespan across which Volatility is measured increases, the Volatility is expected to increase. The relationship between the length of time, and the expected change in price, is not linear, as is demonstrated by this chart.



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UAL:  Daily Volatility Histogram

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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UAL:  Quarterly Volatility Histogram

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.

For Subscribers: Refined Analysis of United Airlines Volatility and Risk Behavior

Refined Volatility Risk Analysis for UAL :


Companies in the News:

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 Convergys Corporation and Coach, Inc..

From the News Archive: (3/11/2010 ) A favorable event happened at Zimmer Holdings, Inc.. Meanwhile, bad news came from Fluor Corporation (NEW), Automatic Data Processing, and Home Depot.


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Back to UAL Table of Contents


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