Discover how to accurately calculate beta in Excel, understand its importance in finance, and ensure consistency by choosing the correct time periods for data analysis.

A stock's historical variance measures the difference between the stock's returns for different periods and its average return. A stock with a lower variance typically generates returns that are ...

The Standard Deviation is the basic metric to measure volatility. However, the Standard Deviation is an absolute measurement, not a relative measurement. To compare the volatility of two or more data ...

Scott Nevil is an experienced writer and editor with a demonstrated history of publishing content for Investopedia. He goes in-depth to create informative and actionable content around monetary policy ...

Stock's historical variance measures its return stability over time. Higher variance indicates greater return unpredictability and risk. Calculate variance using Excel to simplify the process for ...