Over a lifetime, 7% to 8% is a good return. If you are safely building a portfolio, and looking at year over year, then anything between 8% and 12% is pretty good. If you are closer to retirement or just more risk averse, then around 5% to 7%. Really, anything above inflation means you are making money.

Everyone is going to have different definitions of “good.” It all depends on your goals, risk aversion, and stage of life. Your best bet is to find a financial advisor who can tailor a plan to your needs.