It's been a choppy few weeks in the equities market. Spooked by rumours that the Chinese government is planning to clamp down on investors buying stocks with borrowed money, the Shanghai Stock Exchange composite index dropped by nearly 9% on February 27 - its biggest fall in 10 years.
Other stock markets quickly followed. The S&P 500 index plunged by 3.47% on the same day, and the Dow Jones Euro Stoxx 50 slumped by 2.62%. In turn, equity volatility spiked, with the Chicago Board Options Excha