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 ...

Diversification has been called the oldest trick in the investment book. So old that to construct a diversified portfolio, it is still common to apply mean-variance optimisation, a 70-year-old ...

Understand what portfolio diversification is and why it's a crucial investment strategy. Learn how diversification can help ...

Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor (CRPC), Retirement Income Certified Professional (RICP), and a Chartered Socially Responsible Investing ...

Theory and practice in money management have a rocky relationship. What looks good on paper often suffers a difficult and even a fatal transition to the real world for several reasons, including ...

There’s a reason Wall Street firms recruit from MIT. For many investors, the financial markets are governed entirely by mathematical equations applied to aspects of a security’s price and trading ...

The classical Markowitz approach to portfolio selection is compromised by two major shortcomings. First, there is considerable model risk with respect to the distribution of asset returns.