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 ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Eric's career includes extensive work in ...

Global healthcare spending is $9.8 trillion annually, with the U.S. accounting for about $4.9 trillion. Investors can consider drug, medical device, payer, and healthcare provider stocks. Focus on ...

You spend countless hours optimizing your site for human visitors. Tweaking the hero image, testing button colors, and ...