Learn what active risk is and how to calculate it. Understand the methods to evaluate active risk in portfolios and explore examples of funds outperforming benchmarks.

Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...

Every year, Santa Claus races around the globe in a matter of hours to bring presents to children all over the world.

Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Erika Rasure is globally-recognized as a leading consumer ...