Quote from m22au:
I have had similar thoughts over the past year or two. However maybe it's QE combined with the following two factors:
(1) Momentum ("Where else do you put your money with interest rates so low?")
(2) The belief that should equities decline by a big amount (let's say 10%) that the Fed will increase its QE program to an amount more than $85 billion a month, which is supportive for risk assets.
My thoughts:
1) When investors reject a safe couple of percent per annum in exchange for big stock market returns, this is exuberance. In fact it is what's known as the "cash is trash" bubble mentality. If you remember, back in 2009 when investors <i>should</i> have been loading up on shares they only thing they wanted was cash and equivalents.
2) Once again this is "this time it's different" thinking. There is no government action, new technology or social change that can keep the stock market up forever. That's been true since the stock market started 350 years ago.