out as their net worth. Most of their money is derived from the stocks of their respective companies. If they were to try to sell off much of that stock, the price of said stock would plummet. They can borrow a fair amount against some of it, and over time, sell a lot of it, but actual cash value, within say, 2 biz days, not more than 1/4 of what is their (claimed) value, and maybe not more than 10%, either. Once you understand this, you will understand a lot more things about "the rich".
But they can easily have lots of cash without degrading the value of their holdings if they sell in smaller quantities over a longer period of time. Kind of stating the obvious, though.
