Cash per share is a tool to be used when the stock market is collapsing like it was the case in 2002 or 2009. When the market is doing well it will be practically impossible to find companies that trade at a price that is below net cash per share. Nevertheless, checking the cash per share shows how much stability the company offers and the actual creation of cash. As Munger and Buffett would say: “You want to invest in companies that are drowning in cash.”