The main types of stock are common and preferred. Stocks are also categorized by company size, industry, geographic location and style. Here's what you should know about the different types of stock.

Since 1957, the S&P 500 has seen an average annual return of over 10.5%, according to Official Data. Someone who invested $100 at the start would have around $97,000 in August 2025 (a figure that ...