Prices in the options market show that investing in U.S. stocks is getting safer-or do they? The Chicago Board Options Exchange Volatility Index (VIX), which measures the expected volatility of the S&P 500, notched its third consecutive weekly drop on Feb. 26, to 19.5. The gauge has averaged 20.3 since 1990 and moves in the opposite direction of stocks more than 80% of the time.
展开▼
