Successful investing requires the ability to distinguish long-term trends from the short-term noise that moves stock prices on a minute-to-minute basis. One way to tune out the random oscillations and ...

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, ...

Calculating returns from your stock portfolio can be a tricky matter, especially if some of your holdings pay dividends, or you make frequent deposits and withdrawals from your account. With Excel and ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Chip Stapleton is a Series 7 and Series 66 license holder, CFA Level 1 exam ...

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.

You can figure the slope of the Security Market Line with a simple formula in Excel. The SML is the slope defined by the Capital Asset Pricing Model that shows the relative riskiness of stocks ...

The high return, low risk, and low correlation to equities of TLT make it a compelling addition to a portfolio that is overweight stocks. Given my previous forecast, the alpha of TLT should be ...

Mathematical models are a way to attempt to predict the probable outcome of a complex situation. From climate, stock market and physics models, you can use mathematical formulas to determine a range ...

Correlation coefficients are indicators of the strength of the linear relationship between two different variables, x and y. A linear correlation coefficient that is greater than zero indicates a ...