A majority of American investors are optimistic about U.S. stocks, but they are still sitting on piles of cash. In fact, the U.S. Investors are sitting on the largest pile of cash ever. The amount of cash in bank accounts is now at a record $16 trillion, more than twice as much as 2009 levels. Jeff Powell, CIO, Managing Partner & Founder of Polaris Wealth & Jeremy Witbeck, Partner at Polaris Wealth, discuss what that could means for stocks and what they should be doing with all that cash.