Digging through the data to find chart success.

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Return on investment (ROI) measures the amount of ...

Understanding stock valuation, like P/E ratio, helps decide if a stock's price offers good value. Active investors view a stock's intrinsic value as separate from the market price. P/E variations and ...

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 ...

AT&T's 2.0 plans are mostly an upgrade, but the new flagship overshoots on both price and features. Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to ...

The currency value of the SDR is determined by summing the values in U.S. dollars, based on market exchange rates, of a basket of major currencies (the U.S. dollar, Euro, Japanese yen, pound sterling ...