Key facts
- Wall Street indexes have rallied for nine straight weeks, reaching successive new highs.
- Options market metrics suggest the rally is fragile and prone to volatility spasms.
- Investors are increasingly using options to position for further upside rather than seeking protection against a market drop.
- Measures of correlation in stock movements have sunk to near record lows.
- Analysts warn that the market's current state could resolve in a sharp pullback rather than calm churn.