Google is testing the ability to click on a word in a featured snippet within Google Search and define that word. You can also copy the word, if you want. I think this is a Google Search test and ...

When you purchase an options contract, you're purchasing the right to buy or sell a stock (or other security) at a set price. Many, or all, of the products featured on this page are from our ...

Elvis Picardo is a regular contributor to Investopedia and has 25+ years of experience as a portfolio manager with diverse capital markets experience. Thomas J. Brock is a CFA and CPA with more than ...

Options greeks are a group of variables that affect option positions. They are typically referred to as delta, gamma, theta, vega, and Rho in the options market. These variables indicate how changes ...