Beta is the 2nd letter in the Greek alphabet, and the financial world uses it to refer to the sensitivity of an asset’s price compared to a specific index or benchmark. Beta is also used as a measure ...

Volatility is troublesome for many investors. Value changes in your stocks, your portfolio, or an index can keep you up at night -- or worse, push you to make emotional decisions you later regret.

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 ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA Society committee ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...