Investor Education Story

Financial Indicator

Macroaxis News
  
By Aina Ster

May 15, 2017

The standard deviation is one of the main statistical indicators commonly used to measure confidence in statistical conclusions. For example, the margin of error in polling data is determined by calculating the expected standard deviation in the results if the same poll were to be conducted multiple times. In finance and investing Standard Deviation is usually used to measure risk.

Standard Deviation

The more volatile a given equity instrumet, the larger its standard deviation. Standard deviation helps money managers to capture volatility of the portfolio into a single number. For most traded equities, future monthly returns are usually destributed within one standard deviation of its average return (68% of the time),  and within two standard deviations 95% of the time.




Other deviation levels to watch out for are the 1.5 and 2 standard deviation level. At 2 standard deviations, the likely hood that your data point occurs within 2 standard deviations increases to roughly 95%. Again, just like any tool, this may not be 100% accurate, but it certainly have proven true more times than not. Using standard deviation is simple statistics and it takes emotion out of the picture. Another way people use standard deviation is to incorporate volume, which takes a little time to master the equation, but is certainly possible. Identifying what tools to use for you investing needs can take time, but a standard deviation tool is one to keep your eye on. It is reliable compared to the others and has proven to be one of the more useful out of the many that exist.

About Contributor

Aina Ster
   Aina Ster is a Member of Macroaxs Editorial Board. Aina delivers weekly prospective on ongoing market and economic trends, analysis and tips from predictive analysis to forecasting across various financial instruments. View Profile
This story should be regarded as informational only and should not be considered as solicitation to sell or buy any financial products. Macroaxis does not express any opinion as to the present or future value of any investments referred to in this post. This post may not be reproduced without the consent of Macroaxis LLC. Macroaxis LLC and Aina Ster do not own shares of FILTER. Please refer to our Terms of Use for any information regarding our disclosure principles.

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