Cash and cash equivalents are common places where billionaires keep some of their money.
Although not often considered an investment, cash is a liquid asset. This means it can be used in many different ways when the need or desire arises.
Commodities are often another component of billionaire portfolios and such assets help hedge against risk, inflation and volatility.
Raw materials and agricultural products – like precious metals, industrial metals like copper, oil and natural gas, coffee, corn etc.
Holding foreign currencies gives billionaire the possibility to profit from fluctuations in the value of various currencies. This is just a form of diversification.
Instead of having all his assets denominated in one currency, he allocates a portion of his assets to assets denominated in other currencies.
Another common place billionaires keep their money is securities. Securities are often financial investments and commodities of some value that can be traded on the open market.
Private equity and hedge funds exist alongside the securities and trading markets.
Although not the same, these two types of investment vehicles are popular among millionaires.
It's no surprise that one of the places billionaires invest their money is real estate. One of the most popular ways to invest in real estate without worrying about regular maintenance
When billionaires are looking for a place to store their money beyond traditional investments, they may be turning to tangible collectible investments.
Or they often include expensive collectibles such as antique musical instruments, or original copies of famous books.