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Harken Energy Historical Volatility

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Daily Volatility = Price Range as a percent of the daily average price. of Harken Energy

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

For instance, on 6/5/2007 the average price was 0.4 with a range of 0.02, indicating a Daily Volatility of 4.9%. 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.

For reference, the price is plotted in red. 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. During 17 years, the Average Quarterly Volatility of HEC stock price has been 60% while the Average Daily Volatility has been 8%.



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HEC:  Volatility Curve

You may be familiar with the "yield curve" which shows how interest bearing yields vary according to term. These Volatility Curves each apply to a discrete time interval. As the timespan across which Volatility is measured increases, the Volatility is expected to increase. However, as seen in this plot of the HEC Volatility Curve, the increase is not constant.



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Daily Volatility Histogram of Harken Energy

A frequency distribution of the green points on the first chart (the daily volatility) yields this histogram.



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HEC:  Quarterly Volatility Histogram

Similarly, the purple points on the top chart, the Quarterly Volatility Values, are subjected to frequency distribution here.

For Subscribers: Refined Analysis of Harken Energy Volatility and Risk Behavior

Refined Volatility Risk Analysis for HEC :


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More HEC Technical Analysis Topics

HEC Price Predictions

Support and Resistance Levels

Volume Stratification Analysis

Politics and Prices of HEC

Japanese Candlestick Analysis

HEC Classical Analysis of Time Series

HEC Historical Volume

HEC Seasonal Trends

Back to HEC Table of Contents


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