If you moved money from the S&P 500 to the Barclay's Aggregate Bond Index every time you heard Armageddon rhetoric from these market commentators, you'd be missing out.Not that the stock market is infallible. It has awful drawdowns like any other asset class as anyone who's been around a while knows. But focus a bit less on what "calls" the "experts" are giving you. They don't know your time horizon, risk tolerance, etc, and you don't know theirs. And how they came to their conclusions often isn't known or reasoned out very well. Instead focus on having a well-diversified portfolio.