Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Portfolio variance is a measure of the dispersion of returns of a portfolio.

This paper reexamines and extends the work of Ben Horim and Levy [1], which argued that risk decomposition should be based on standard deviation rather than on variance. Their analysis showed that ...

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 ...

The average rate on a 30-year U.S. mortgage fell this week to its lowest level in nearly a year, reflecting a pullback in Treasury yields ahead of an expected interest rate cut from the Federal ...

The warm, fuzzy feelings survived about as long as a parched snow goose in the Berkeley Pit. The Environmental Protection Agency announced in October a proposal to drop the cleanup level for lead in ...

A Baringo teacher has been awarded a continental award from Unesco’s International Institute for Capacity Building in Africa. Jepkosgei Chemoiwa, a mathematics and physics teacher at the Emining Boys ...

Arsenal’s executive vice-chair Tim Lewis has left the club in a shock exit and major boardroom shake-up. Lewis has been advising Arsenal’s owners, Kroenke Sports & Entertainment (KSE), since 2007 and ...

Fabio Carvalho struck late in injury time to deny Chelsea victory over Brentford in the west London derby. It was not an undeserved point for Brentford, though, who marshalled the world champions for ...

The Earth is always spinning on an imaginary line called an axis. This line goes through the North and South poles. We call this spinning, rotation, and it takes about 24 hours for the Earth to make ...

Stock market sectors group similar industries, enabling straightforward comparisons for investing in companies. Exploring specific sector ETFs and mutual funds can be a safer investment entry point.