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What is the smartest thing to do in case of a stock market crash
Remind yourself that markets recover, usually within a few years. If you believe this and can remind yourself of this, you will be able to see the down cycles of the market as an opportunity to buy stock "on sale". No one knows the future, so many people have found investing on a regular schedule to be helpful. By putting in the same amount of money each period, you will end up buying fewer shares when the market is up, and more when it is down. As long as your time horizon is appropriate, you should be able to wait out the ups and downs. Stocks are volatile by their very nature, so if you find that you are very concerned by this, you might want to consider whether you should adjust the amount of risk in your investments, since over time, most people lose money by trying to "time" the market. However, if your investment goals and requirements haven't changed, there likely isn't any need to change the types of assets you are investing in, as what you are choosing to invest in should depend on your personal situation. Edit: I am assuming you want to be a long-term investor and owner, making money by owning a portion of companies' profits, and not by trading stocks and/or speculation.