Exchange trade funds are typically managed by financial advisers or those with a lot of experience in trading. In fact, they are very similar to both stocks and mutual funds in that they are traded and many investors come together to invest in them. In other words, etf-funds are great for an investor that is constantly keeping his eye on his investments and desires a great deal of flexibility in his trading. In the end though, you need to be certain you are aware that this is not a way to make a lot of money with little to no work.