Jason Voss at the CFA Institute digs into this subject.
Contrary to popular perception US corporations seem to be accumulating cash at a slower rate than profit growth.
Put another way, it appears that U.S. corporations have an excess of cash on their balance sheets if — and only if — you: (1) ignore cash balances from 2007 to 2009; and (2) compare the corporate cash balance in the second quarter of 2011 to those in 2010. Even then, any cash considered “excess” is only $24.2 billion, which is just 1.18% above the actual cash balance of $2,047.3 billion .
The weighted average interest rate for the U.S. corporate liquid assets (shown below) is estimated at 0.51% as of 30 June 2011. Compare this weighted average return to an estimated core consumer price index of 1.7% for 2011. Consequently, the net rate of return on almost $2,000 billion of economic value is –1.19%!