Investing can often feel like navigating a maze of endless options and ever-shifting market conditions. This is where the Modern Portfolio Theory (MPT) comes in, offering a roadmap for making smarter ...

Lisa Smith is a writer with a passion for financial journalism, contributing to popular media outlets like Investopedia and Bloomberg BNA. Andy Smith is a Certified Financial Planner (CFP®), licensed ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Modern portfolio theory (MPT) and behavioral finance represent differing schools of thought that attempt to explain investor behavior. Perhaps the easiest way to think about their arguments and ...