Roth IRAs and Traditional IRAs are two types of retirement accounts for U.S. investors. Is one better than the other? Let's dive in.

There are several different types and definitions of portfolio risk. Some are more useful than others. This post explores how to think about risk and volatility.

Since investors are human, there are a significant number of emotional and cognitive investing biases to be aware of and try to avoid.

Market timing is trying to predict future price movement. Here we'll look at why it doesn't work and why "time in the market beats timing the market."

Portfolio diversification is considered to be the only free lunch in investing. In this post, I'll show you why and how to diversify your portfolio.

Dollar cost averaging and "lump sum investing" are two different timing strategies for getting cash into the market. Let's compare them.