From Bloomberg:
Skittishness over the U.S. stock market’s record-setting rally is reaching a crescendo among options traders who are preparing for a crash.
Investors are paying the most ever to protect against a drop in the Standard & Poor’s 500 Index, data compiled by Morgan Stanley show. The gap between the price of so-called put options on the benchmark for U.S. equity and the cost to wager on further gains has averaged about 8 percentage points since August. That’s more than the previous high in July 2001, before the index dropped 34 percent and fell to the lowest this decade.