Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

Alexandra Twin has 15+ years of experience as an editor and writer, covering financial news for public and private companies. Robert Kelly is managing director of XTS Energy LLC, and has more than ...

You need a powerful graphics card to run cutting-edge PC games at 4K resolution. These high-end GPUs are the top performers we've tested for pixel-packed gaming. I have been a technology journalist ...