It is widely advised that you should never put all of your eggs in one basket. You know, because for some reason or another, having all of those eggs in one basket could lead to a total loss of all of your highly precious eggs. In line with this principle, many investors hold a bit of lots of different assets – stocks, bonds, property, and so on. When stock prices fall, bond prices might rise. If you need to cash in your money just as stocks have fallen, you’ve lessened the blow. And saved some eggs.