Hello! To everyone working in manufacturing quality control or production engineering, are you overwhelmed every week by data organization, calculating histograms and Cpk (Process Capability Index), ...

The S&P Composite index has been consistently above its trend for nearly three decades, with one brief exception during the 2008-2009 period, when it dropped to 30% below trend. The stock market's ...

The China Cyclical Activity Tracker, China CAT, is an alternative measure of China’s economic growth based on research in Fernald, Hsu, and Spiegel (2020). The China CAT index measures fluctuations in ...

Marshall Hargrave is a stock analyst and writer with 10+ years of experience covering stocks and markets, as well as analyzing and valuing companies. Dr. JeFreda R. Brown is a financial consultant, ...

Claire Boyte-White is the lead writer for NapkinFinance.com, co-author of I Am Net Worthy, and an Investopedia contributor. Claire's expertise lies in corporate finance & accounting, mutual funds, ...

Have you ever stared at a massive spreadsheet, unsure how to turn that sea of numbers into something meaningful? You’re not alone. Despite Excel being one of the most widely used tools in the world, ...

The gaussian, or normal, distribution is a useful and common distribution. Imagine looking at a graph of the number of students in a physics class who achieved each grade in a recent test. The top of ...

Use Excel to calculate daily returns and standard deviation to gauge stock volatility. Annualize volatility by multiplying daily standard deviation by the square root of 252. Remember, standard ...

Annualized volatility is calculated as standard deviation times square root of periods. High annualized volatility indicates greater price variability and potential risk. Investors use annualized ...