- Equity Trading | September 1, 2017
The ratio of outstanding puts to calls on the S&P 500 has risen to levels last seen in the late-2015 market sell-off. Nervous Equity investors are willing to pay more for protection against losses than gains. So-called equity implied volatility skews are above the 10-year average. Investors have increasingly pushed into perceived haven assets in the second half of 2017.