Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics 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 ...

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 ...

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.