The three main categories of investments are stocks, bonds, and cash - and they all come with their own risks and rewards. Here's how to balance your investments to best achieve your goals. (This video is a part of our new series, How to Invest. Subscribe to our free newsletter! https://www.marketwatch.com/newsletters#mktw-hti) | MarketWatch

1.8K views · 31 reactions | Investors have different ways to figure out whether a stock represents a good value. A stock’s price-to-earnings ratio, or P/E ratio, is one of the most commonly used. Here's how it works and how you can use it to pick stocks for your portfolio. | MarketWatch | Facebook